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Hi everybody,
Since the TP2 is using a whole lot more power than my old HTC Universal, I am looking for a decent Solar charging solution for on my bike.
TomTomnavigator + GPS use more than 500mA (I mean when I put in a car charger of this type hte phone says "insufficient current to blablabl")
I surfed the net, but decent info is hard to find about this specific problem. I mean I want to plug my phone in the solar charger and KNOW that it will give sufficient powersupply to charge the battery (or at least keep it at the same level)
Anybody an idea or maybe a link to a DECENT site (with CORRECT technical info)? Commercial sites with the best product ever, i have seen enough until you test it!
thanx to all!
Kjoere
I have one of these that I got on Amazon for 80 bucks and I love this thing! It also acts as a spare battery, and you can adjust the voltage. I brought it with me when I went camping. It's definitely worth it.
http://www.icetechusa.com/catalogue-solar-167464-spec.html
I've tried several of the cheap Chinese solar chargers and also a Solio, and they are all crap
Solar charger need direct sunlight. If cloudy, they can take a few days (daylight days not 24hr days!) to charge. So unless you live on the African Savanah where it will charge in 7 hours, then you will have a long wait.
I put my Solio on my window cill in January this year, and by the midle of February it got a full charge. I kid you not
You are probably much better off with a external power pack that uses 1 or 2 standard AA batteries or a minimum 2000mAh lithium battery
This solar 'card' from Swiss batteries looks interesting.
A 1mm thick bendable, weather-proof card of more efficient modern solar cell technology, with a claimed [up to] 40% greater efficiency than other cells. A portable battery option (as with the power monkey ) is also available.
And check out the solar bags on their site too!
PaulusUK said:
You are probably much better off with a external power pack that uses 1 or 2 standard AA batteries or a minimum 2000mAh lithium battery
Click to expand...
Click to collapse
Where might I get an external power pack with more than one AA battery? I can only find 1xAA packs, and I can't imagine a little old alkaline AA could produce NEARLY enough current at 5v to charge our beefy phones. Not for any amount of time, anyway, and not without heating up to what I would consider dangerous levels...
godefroi said:
Where might I get an external power pack with more than one AA battery? I can only find 1xAA packs, and I can't imagine a little old alkaline AA could produce NEARLY enough current at 5v to charge our beefy phones. Not for any amount of time, anyway, and not without heating up to what I would consider dangerous levels...
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Click to collapse
I'm afraid too that alcaline AA's won't do the job pretty well, although rechargeable NiMh could be worth a try
For outdoor-recharge, I'm using this general USB-charger featuring a rechargeable 2200 mAh 18650 LiOn battery:
http://www.dealextreme.com/details.dx/sku.18883
It has the advantage that you can change the 18650 easily, thus enabling you to take several ones with you for long voyages
MeCry
godefroi said:
Where might I get an external power pack with more than one AA battery? I can only find 1xAA packs, and I can't imagine a little old alkaline AA could produce NEARLY enough current at 5v to charge our beefy phones. Not for any amount of time, anyway, and not without heating up to what I would consider dangerous levels...
Click to expand...
Click to collapse
This is the best on I have found
Its a massive 3400mAh with a 5v 700ma output so will charge most phones and other gadgets no problem. It is just a bit smaller than the TP2 so is easy to carry around in a pocket
I got mine off ebay for less money - same unit but a different manufacturer. AFAIK, these are commonly rebranded, but look for the shape and the 3400 mah spec.
Most of the other Chinese ones from places like Dealextreme are lower capacity
I was really hoping for something using standard AA (maybe NiMH, 4 of those would be 4.8V).
In fact, 2xAA NiMH should be able to deliver the sort of current we're talking about here, right?
And, sure enough, Here is someone that's built exactly what I want. Who wants to assemble me one?
One product springs to mind: The powermonkey-eXplorer
https://powertraveller.com/iwantsome/primatepower/powermonkey-explorer/
thanx roger
I got an Energizer 2xAA charger, and it works on my TP2 absolutely fine. You need to use good quality batteries in it, but it's fairly compact and keeps the battery topped up while I'm out using the GPS with no car nearby!!!
http://www.google.co.uk/products?hl...a=X&oi=product_result_group&ct=title&resnum=4
gringolian said:
I got an Energizer 2xAA charger, and it works on my TP2 absolutely fine. You need to use good quality batteries in it, but it's fairly compact and keeps the battery topped up while I'm out using the GPS with no car nearby!!!
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Click to collapse
Energizer says it needs Lithium batteries (which I think are 1.7v), have you tried with NiMH perhaps (which are 1.2v)? I'd think it'd figure the batteries were empty even when they were newly charged.
godefroi said:
Energizer says it needs Lithium batteries (which I think are 1.7v), have you tried with NiMH perhaps (which are 1.2v)? I'd think it'd figure the batteries were empty even when they were newly charged.
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Click to collapse
I've got standard Duracell 1.5V alkaline batteries in it right now, and it charges it just fine! I think energizer say that to make you buy their ridiculously expensive lithium batteries!!
Hi,
I plan to disappear into the woods and come back out when I've finished my thesis (more or less). So I'm interested in buying a solar panel to use with my transformer and since people here seem pretty knowledgeable about charging the transformer I thought I would run it by you guys to make sure I do not miss something important.
I've gathered so far that I will need at least an 11v panel.
Also, it seems I need USB 3.0 to charge by USB. Is this correct?
And if I can't get USB 3.0 I will have to modify a 2.0 wire or plug or whatever... I prefer to avoid this
What should I go for in terms og Watts?
Would it be reccommendable to buy a panel with a battery to get a more even current?
Recommandations would be great!
Wow, I thought I was the only one that even remotely cared about this!
I have a Goal0 Nomad 7m. It's 12v, and I have had no luck getting it to charge my TF. Do you think it might be because of the USB 3.0 requirement?
Great that I'm not alone! Too bad that it doesn't work though...
I got the thing about USB 3.0 from this thread;
http://forum.xda-developers.com/showthread.php?t=1087321
reading it again I noticed this line;
"The Asus charger does need a 3.0 cable extension to work. But with a DIY charger you don't need USB 3.0 cables or connectors."​
So I'm not really sure if it makes a difference whether you use USB 2.0 or 3.0.
Anyway the specs for your Nomad says that it's 5v for USB output and 12v for DC output so I'm guessing that's why it doesn't work with the transformer.
Miki T. said:
Great that I'm not alone! Too bad that it doesn't work though...
I got the thing about USB 3.0 from this thread;
http://forum.xda-developers.com/showthread.php?t=1087321
reading it again I noticed this line;
"The Asus charger does need a 3.0 cable extension to work. But with a DIY charger you don't need USB 3.0 cables or connectors."​
So I'm not really sure if it makes a difference whether you use USB 2.0 or 3.0.
Anyway the specs for your Nomad says that it's 5v for USB output and 12v for DC output so I'm guessing that's why it doesn't work with the transformer.
Click to expand...
Click to collapse
You're right!...that actually means there's options. Shouldn't something like this work?
http://www.amazon.com/Portable-Inve...=UTF8&coliid=IUJZFD56YRM5K&colid=HQA2VAAM7MXY
I think I'm gonna have to order this, and give it a shot. I already have the panel & the DC jack, so I might as well.
Hey nice find! It seems like it should work, though don't take my word for it. I'm really ignorant of this stuff which is why I started the thread to begin with In any case $22 for a charger sounds fairly cheap.
Let me know if it works or not!
Solar panels that put out more than 28W (5V, 2A = 10W + 15V, 1.2A = 18W) would be enough, but then you'd likely want to run it through an inverter to get 110v AC, then the ASUS charger.
Until and unless ASUS comes out with a car charger that would work with the dock, running an inverter to generate an AC signal, then running it through the AC adapter will be the way to go.
Figuring in efficiency losses, you'll probably want 50-75W worth of solar panels for this to work. You can also use a 12v battery as a ballast.
FrayAdjacent said:
Solar panels that put out more than 28W (5V, 2A = 10W + 15V, 1.2A = 18W) would be enough, but then you'd likely want to run it through an inverter to get 110v AC, then the ASUS charger.
Until and unless ASUS comes out with a car charger that would work with the dock, running an inverter to generate an AC signal, then running it through the AC adapter will be the way to go.
Figuring in efficiency losses, you'll probably want 50-75W worth of solar panels for this to work. You can also use a 12v battery as a ballast.
Click to expand...
Click to collapse
You don't need 5V and 12V, only 12V. The Asus charger only puts out 5V for non-transformer devices. Don't introduce all the loss from the 110V converter, just charge a 12V battery with a panel(the Asus will draw 18 watts at full charge), then charge the transformer from the battery. Just get a usb extender, cut it, and hook negative to pin 4 and positive to pin 1. I would recommend a 5 Ohm resistor to limit amperage, but it isn't necessary.
I'd like to hear how it works out.
I was considering putting some flexible solar panels on the back of the transformer. But with the dock, I've got more than enough power for my needs. Plus, the back of the transformer won't get that much sunlight.
I'm now moving on to trying to put solar panels on the back of my cellphone (Huawei U8800). It's a great phone, and the battery lasts all day, so long as I don't play too many games.
One thing you might want to consider is an external battery pack. They are pretty cheap here in China, and have huge batteries in them. They even have some with built in solar panels. I'm sure you could find one that could recharge the Transformer. Then you could have the battery pack in the sun charging via the solar panel, and you sitting in the shade with the transformer. At night plug the battery up to the transformer to let it charge while you sleep. The transformer with dock should have more than enough battery life to last all day.
If I come across any useful information during my research, I'll let you know.
Miki T. said:
Hey nice find! It seems like it should work, though don't take my word for it. I'm really ignorant of this stuff which is why I started the thread to begin with In any case $22 for a charger sounds fairly cheap.
Let me know if it works or not!
Click to expand...
Click to collapse
I bought it! ...and it will be here this afternoon. Thanks to Amazon Prime local delivery .
I'll let you know how/if it works out.
philburkhardt said:
I bought it! ...and it will be here this afternoon. Thanks to Amazon Prime local delivery .
I'll let you know how/if it works out.
Click to expand...
Click to collapse
Stuff like that is great for the car, but you're gonna lose SO much efficiency through it, then even more loss from the Asus charger plugged into it. A 15W solar panel should be enough to charge the TF directly. Using an inverter with the asus charger, you'll probably need 50-100W. Just FYI.
msticninja said:
Stuff like that is great for the car, but you're gonna lose SO much efficiency through it, then even more loss from the Asus charger plugged into it. A 15W solar panel should be enough to charge the TF directly. Using an inverter with the asus charger, you'll probably need 50-100W. Just FYI.
Click to expand...
Click to collapse
Yup, you're right. No go on charging the TF. Like you said, it will be great for charging things in the car. Just not off my 12W solar panel. I think I'm gonna have to upgrade my panel .
philburkhardt said:
Yup, you're right. No go on charging the TF. Like you said, it will be great for charging things in the car. Just not off my 12W solar panel. I think I'm gonna have to upgrade my panel .
Click to expand...
Click to collapse
The real joy of the TF is that it charges directly from 12 volts, so, assuming you have a 12 volt 12W panel, you should go get a 12 volt battery, 4AH(amp-hour) at least. It will be about the size of an old 6 volt lantern battery. Hook the panel to the battery to charge the battery, hook a female usb port to the battery, and hook the TF directly to the female usb port. You'll probably be able to get through a whole night on a 4AH battery + the TFs battery.
Great! Lots of useful replies... thanks a lot!
I plan on not using the adapter and use a USB extender the way msticninja wrote, since I don't want to carry or pay for something that delivers 50-100W.
I think I've found the panel I am going to buy. I cannot include outside links until I've posted 8 messages, but you can easily find it by googling "Portable 9x 2.5 W Solar Panel". So 22.5 Watt... that should suffice. That's at 18v * 1.25a.
It seems that all the solutions that comes with a battery are all quite pricey, but then I don't really need some fancy battery do I? Some do-it-yourself solution should be fine as long as the battery is rechargeable, 4AH("at least") and 12v right?
Do I want to reduce the voltage of the solar panel to 12 instead of 18? And should I worry about overcharging the battery?
By the way, is the battery an absolute necessity or is that only if I want to charge during the evening/night?
What I hope to be able to do is; be away from mains for about one week at a time, and use my laptop, say, 8 hours a day. I hope this will be enough...
Miki T. said:
That's at 18v * 1.25a.
Do I want to reduce the voltage of the solar panel to 12 instead of 18? And should I worry about overcharging the battery?
Click to expand...
Click to collapse
The Asus charger will put out 15V at most, as marked on the charger itself. I don't think I'd use anything higher than 12V into the tablet/dock. You'd probably want to use some kind of voltage regulator to drop the 18V to 12V.
Without knowing the internal workings of the dock/tablet, I can't really comment more than that.
Miki T. said:
Great! Lots of useful replies... thanks a lot!
I plan on not using the adapter and use a USB extender the way msticninja wrote, since I don't want to carry or pay for something that delivers 50-100W.
I think I've found the panel I am going to buy. I cannot include outside links until I've posted 8 messages, but you can easily find it by googling "Portable 9x 2.5 W Solar Panel". So 22.5 Watt... that should suffice. That's at 18v * 1.25a.
It seems that all the solutions that comes with a battery are all quite pricey, but then I don't really need some fancy battery do I? Some do-it-yourself solution should be fine as long as the battery is rechargeable, 4AH("at least") and 12v right?
Do I want to reduce the voltage of the solar panel to 12 instead of 18? And should I worry about overcharging the battery?
By the way, is the battery an absolute necessity or is that only if I want to charge during the evening/night?
What I hope to be able to do is; be away from mains for about one week at a time, and use my laptop, say, 8 hours a day. I hope this will be enough...
Click to expand...
Click to collapse
You will need some sort of voltage regulation to maintain 12V. That's pretty much a requirement for any solar charging system. Panels themselves do not usually have regulation, so the output voltage of the panel is a function of the amount of light the panel is receiving.
This is a really quick search, but this satisfies all the requirements for what you need, and it's only $20:
http://www.amazon.com/Ramsond-SunShield-Charge-Controller-Regulator/dp/B0031FQ1S6
Feel free to search for alternatives, but use that as your starting point for searching.
Another quick search to give you an idea what you're looking for as far as batteries:
http://www.google.com/products/catalog?q=12v+4ah+battery&oe=utf-8&rls=org.mozilla:en-USfficial&client=firefox-a&um=1&ie=UTF-8&tbm=shop&cid=15393345737619657558&sa=X&ei=lq5MTsCGGMSCsgLgivmCBw&ved=0CHIQ8wIwAA
If I made something for myself, I'd use Lithium Ion cells and use a smart lipo charger to regulate the solar panel output, but it needs more research, and will cost more.
This will be interesting!
I've ordered the parts - the panel I mentioned, the Ramsond SunShield 12V 8A Solar Charge Controller Regulator that msticninja suggested and a Super Rechargeable Li-ion Battery, 12V 6800mAh. I ordered the panel and the battery off of sunsky. They seem to have very fair prices.
All the parts came to a total of $164, shipping included. Compared to complete sets with the same specs I'd say that's a really good deal, provided I make it work
I'll let you know!
Miki T. said:
This will be interesting!
I've ordered the parts - the panel I mentioned, the Ramsond SunShield 12V 8A Solar Charge Controller Regulator that msticninja suggested and a Super Rechargeable Li-ion Battery, 12V 6800mAh. I ordered the panel and the battery off of sunsky. They seem to have very fair prices.
All the parts came to a total of $164, shipping included. Compared to complete sets with the same specs I'd say that's a really good deal, provided I make it work
I'll let you know!
Click to expand...
Click to collapse
Give me a link to that Li-ion battery. If it doesn't have it's own charging circuit, you'll need to get a lipo charger instead of/in addition to the Ramsond regulator. I'll check it out for you.
EDIT: If it's this one: http://www.ebay.com/itm/DC-12V-6800mAh-Super-Rechargeable-Lithium-ion-Battery-/150530536976
it's hard to say, but I think it has it's own charging circuit, because the wall wart included with it doesn't look like a lithium charger. But it does have a charge finished light, so, if the light stays on when the battery isn't plugged in, you should be okay. If the green light only turns on when a fully charged battery is connected, then you might not be fine. Confirm what you're getting by posting a link, and I'll try to make sure. If it doesn't have it's own charging circuit, the battery will explode in a fireball.
EDIT2: This one has it's own charging circuit, and it sounds like it's what's inside the other one I linked, so you should be okay if it's either of these.
http://www.lunershop.com/product_info.php?language=en¤cy=USD&products_id=2566
Just wondering if something like this would help.
http://www.ioffer.com/i/solar-battery-panel-usb-charger-for-cell-phone-mp3-mp4-147450373?source=eisi
I have no understanding of electricity, except the basic 4th grade stuff. This is a cool project thought. I'm planning on making a 55 paracord strap that will attach to my case and fit like a messenger bag. Having solar panels to charge it and a paracord strap would make the TF a nice camping device
SwiftLegend said:
Just wondering if something like this would help.
http://www.ioffer.com/i/solar-battery-panel-usb-charger-for-cell-phone-mp3-mp4-147450373?source=eisi
I have no understanding of electricity, except the basic 4th grade stuff. This is a cool project thought. I'm planning on making a 55 paracord strap that will attach to my case and fit like a messenger bag. Having solar panels to charge it and a paracord strap would make the TF a nice camping device
Click to expand...
Click to collapse
Nope, as discussed before, the TF uses 11-15V to charge, and normal USB chargers/backup batteries only put out 5V.
msticninja said:
Give me a link to that Li-ion battery. If it doesn't have it's own charging circuit, you'll need to get a lipo charger instead of/in addition to the Ramsond regulator. I'll check it out for you.
EDIT: If it's this one: http://www.ebay.com/itm/DC-12V-6800mAh-Super-Rechargeable-Lithium-ion-Battery-/150530536976
it's hard to say, but I think it has it's own charging circuit, because the wall wart included with it doesn't look like a lithium charger. But it does have a charge finished light, so, if the light stays on when the battery isn't plugged in, you should be okay. If the green light only turns on when a fully charged battery is connected, then you might not be fine. Confirm what you're getting by posting a link, and I'll try to make sure. If it doesn't have it's own charging circuit, the battery will explode in a fireball.
EDIT2: This one has it's own charging circuit, and it sounds like it's what's inside the other one I linked, so you should be okay if it's either of these.
http://www.lunershop.com/product_info.php?language=en¤cy=USD&products_id=2566
Click to expand...
Click to collapse
Fireballs are serious business...
The one I ordered is the blue one. I can't really confirm with a link since I cannot post external links until 8 posts but there shouldn't be any mistake. And it does say the following about it;
With its multi-protective device, the inner circuit pervents the box from over-recharging or over-discharging.​so it should be safe I think...
********
UPDATE 1/10/2012
This below charger and USB adapter WORKS LIKE A CHARM!!!
Charged fast... from 20percent to 100 percent in 2 hours!!!!!
I can now STOP using the OEM charger which is crap!
Admin: Please add this to the list of working prime accessoriesMy first transformer Prime had charging issues, ( would not charge intermittently) and I found the OEM charger that ships with the prime to be sub-par.. So:
After checking out NUMEROUS threads, I just purchased the following charger and USB adapter from Radio Shack to Use with my Prime:
This particular model has been confirmed to work on the original Transformer-
Enercell AC to DC power adapter 12vdc 1.5A
Radio Shack Model # 273-358
http://www.radioshack.com/product/index.jsp?productId=3807944
used together with this USB adapter:
Model #273-227
http://www.radioshack.com/product/index.jsp?productId=3643549
Does anyone know if the above Enercell 12V 1.5A charger should work on the Prime?
see post #104 here in this thread:
http://forum.xda-developers.com/showthread.php?t=1087321&page=11
Also, can someone confirm the Tip polarity I should use? (I believe the prime uses Positive tip polarity just like the original transformer did?)
http://www.12volt-travel.com/knowledgebase/universal-adapter-tip-polarity/
Thanks for any feedback!
********
UPDATE 1/10/2012
This above charger and USB adapter WORKS LIKE A CHARM!!!
Charged fast... from 20percent to 100 percent in 2 hours!!!!!
I can now STOP using the OEM charger which is crap!
Admin: Please add this to the list of working prime accessories
********
UPDATE 1/10/2012
This above charger and USB adapter WORKS LIKE A CHARM!!!
Charged fast... from 20percent to 100 percent in 2 hours!!!!!
I can now STOP using the OEM charger which is crap!
The charger doesn't even get barely warm while it charges... much better than OEM for me!
Admin: Please add this to the list of working prime accessories
I thought I read somewhere that fast charges aren't good for the long term viability of lithium-based batteries.
---------- Post added at 07:27 PM ---------- Previous post was at 07:25 PM ----------
http://batteryuniversity.com/learn/article/how_to_increase_the_runtime_of_your_wireless_device
Simple Guidelines to Prolong Lithium-ion Batteries
Do not discharge Li-ion too low; charge more often.
A random or partial charge is fine. Li-ion does not need a full charge.
Limit the time the battery resides at 4.20/cell (full charge), especially if warm.
Moderate the charge current to between 0.5C and 0.8C for cobalt-based lithium-ion. Avoid ultra-fast charging and discharging.
If the charger allows, lower the charge voltage limit to prolong battery life.
Keep the battery cool. Move it away from heat-generating environments. Avoid hot cars and windowsills.
High heat and full state-of-charge, not cycling, cause short battery life in laptops.
Remove battery from laptop when used on the power grid.
Click to expand...
Click to collapse
Yeah, I would avoid third-party chargers. Have had a lot of problems with them for laptops.
clankfu said:
Moderate the charge current to between 0.5C and 0.8C for cobalt-based lithium-ion. Avoid ultra-fast charging and discharging.
Click to expand...
Click to collapse
Taking 2 hours to charge implies a 0.5C charge rate.
What's the rated voltage, current and wattage of the stock charger anyway?
Please note that the above charger won't work overseas. It's only got 110V.
webbrowser said:
Taking 2 hours to charge implies a 0.5C charge rate.
What's the rated voltage, current and wattage of the stock charger anyway?
Click to expand...
Click to collapse
Stock charger is rated 15 volts DC @ 1.2 Amps
This radio Shack charger That is working for me is rated 12volts DC @ 1.5Amps.
I read the Transformer specs required to chagre are 11V to 15V DC @ 1A to 2A max
This charger fits within these specs, so that is why it works pretty well. The TP and the charger itself do not get hot at all, so I don't think this is causing any issues with the battery. Does anyone think a slightly quicker charge time will harm the battery long term?
Li-Ion Batteries are sensitive to fast charging. While it is within specs, your long term battery life could be affected. There is probably a reason that Asus decided to stay at the very bottom end of the spec.
nslayden said:
Li-Ion Batteries are sensitive to fast charging. While it is within specs, your long term battery life could be affected. There is probably a reason that Asus decided to stay at the very bottom end of the spec.
Click to expand...
Click to collapse
I have done additional research due to above feed back in regard to Li-Ion's sensitivity with faster chargers.
Apparently, you are correct in regard to long term battery life concerns. I have only done 3 charges so far with the Radio Shack charger. I will let it drain down and switch over to the stock for now and just keep this other one as a backup. Is charging at 300MA more than OEM that much more of significant concern?
Better safe than sorry. Hopefully the few charges I have done did not cause any harm.... If the stock charger goes bad again though, I don't know if I would buy another one....
What was interesting is how hot the stock charger becomes in comparison to the radio shack model, which barely gets even warm. I always was a believer that more heat means less efficiency, so I'm somewhat confused, but I don't want to risk shortening the battery life, so I will go back to OEM stock charger for now, but reluctantly.
I wonder How these "alternative" chargers have effected the batteries for others with the original transformer?
That's an expensive charging setup... nearly $40 eek
mazjohn said:
I have done additional research due to above feed back in regard to Li-Ion's sensitivity with faster chargers.
Apparently, you are correct in regard to long term battery life concerns. I have only done 3 charges so far with the Radio Shack charger. I will let it drain down and switch over to the stock for now and just keep this other one as a backup. Is charging at 300MA more than OEM that much more of significant concern?
Better safe than sorry. Hopefully the few charges I have done did not cause any harm.... If the stock charger goes bad again though, I don't know if I would buy another one....
What was interesting is how hot the stock charger becomes in comparison to the radio shack model, which barely gets even warm. I always was a believer that more heat means less efficiency, so I'm somewhat confused, but I don't want to risk shortening the battery life, so I will go back to OEM stock charger for now, but reluctantly.
I wonder How these "alternative" chargers have effected the batteries for others with the original transformer?
Click to expand...
Click to collapse
I wouldn't worry if I were you. What you bought is just an adapter with a USB socket. The part which decides how to charge the battery is inside the tablet. The requirement for the adapter is to have the same voltage as the original one and at least as much current ( meaning 1.2A or more). The tablet will only take what it needs.
Be careful http://m.youtube.com/#/watch?desktop_uri=/watch?v=SMy2_qNO2Y0&v=SMy2_qNO2Y0&gl=US
susko said:
Be careful http://m.youtube.com/#/watch?desktop_uri=/watch?v=SMy2_qNO2Y0&v=SMy2_qNO2Y0&gl=US
Click to expand...
Click to collapse
It's always easy to scare people. It does say in the description of the movie that he did it by removing the protection circuit. They are designed with protection, so of course they will blow up without one.
Dude why so serious?
It was a joke thus a smiley was implemented. It is quite difficult to do that to a battery. Although I have seen some insane people in the RC hobby community destroy expensive cars and helicopter this way.
Lipo+ignorance=Hollywood style explosions
I saw the smile, don't worry. It is just that most of people, especially when they do not have the knowledge about something, tend to see the bad part (I'm also guilty of this, not in this domain though ).
So, it was not anything against you, the video is entertaining. I just wanted to put people at ease.
Charging Issues
It does not matter the type of rechargeable battery, any "quick charge" will reduce the battery life. I personally don't think 300mA is that much of a difference, but am sure the battery life would be reduced somewhat over time. Nor would I worry much from just 3 charges.
However I don't think we should have to shell out an additional $40 just because Asus can't build quality components. Mine quit charging consistently yesterday (week and a half). I guess we can put it in the same category as GPS...non professional and spotty at best.
EatMy45 said:
However I don't think we should have to shell out an additional $40 just because Asus can't build quality components. Mine quit charging consistently yesterday (week and a half). I guess we can put it in the same category as GPS...non professional and spotty at best.
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Don't worry, ASUS will remove the charger from the SPECs and say it is no longer supported, problem solved...
I'm looking for an external battery charger (preferably solar powered) for taking my Note on backpacking trips. Unfortunately, most of the solar packs that I've found have only .5 - .7 amps available for USB output. If I'm using a 1amp charging cable (with the data leads shorted), will .7 amps kick in the AC charging speed? Is .5 amps enough to charge the phone while I sleep for 7 hours?
I suppose it depends on how long you are out without power but another alternative is an external battery that allows you to charge your phone by plugging it into the external battery.
This one here (at $75 USD) will let you charge the Note from completely dead to a full complete charge 4.4 times.
http://www.amazon.com/New-Trent-IMP...Z64Q/ref=sr_1_2?ie=UTF8&qid=1336084828&sr=8-2
So, if you started your backpacking with a full charge on both the phone and the battery pack, and assuming you charge the phone every night at say 20% battery left, you should get 6 days. If you need more than that, you can just buy a second battery pack (personally, Id want to have two just in case).
That's a good suggestion from littlewierdo. I would also have at least 2 spare batteries for the note. I don't think that .5 amps is enough.
Budge said:
I'm looking for an external battery charger (preferably solar powered) for taking my Note on backpacking trips. Unfortunately, most of the solar packs that I've found have only .5 - .7 amps available for USB output. If I'm using a 1amp charging cable (with the data leads shorted), will .7 amps kick in the AC charging speed? Is .5 amps enough to charge the phone while I sleep for 7 hours?
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Click to collapse
Budge I had an HTC evo 4g and got a 5400mah battery. This worked ok. However the output is .5a which will not charge the note if you are using maps with gps or bluetooth or playing tunes. It wil charge when not using those. Say at night when you are asleep. I think you would have to find a battery with output better than 1a to actually charge when you are actively using your phone. I am not sure of the actual output you would need. I will research it though for my own needs. I do use my note on my motorcyle with a charger which outputs .5a and this is nowhere near what is needed to use google maps and bluetooth and play tunes.
I am actively looking for a solution which will charge my note while using google maps, bluetooth, and playing tunes etc. I may have found a solution with a usb y cable which is connected a 2a source and a .5a source on my motorcycle.
The only solution for backpacking may be to charge when not using the note. I am fairly sure it will charge at .5a when sleeping.
Good luck.
kimtyson said:
That's a good suggestion from littlewierdo. I would also have at least 2 spare batteries for the note. I don't think that .5 amps is enough.
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imesg said:
I am actively looking for a solution which will charge my note while using google maps, bluetooth, and playing tunes etc. I may have found a solution with a usb y cable which is connected a 2a source and a .5a source on my motorcycle.
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Im not sure where you got the .5 amps from, it outputs 1 amp, so it will charge the Note with the screen on. However, it wont charge quite as fast as the wall charger will it will actually charge the phone.
It should be able to handle keeping the screen on, bluetooth doesnt use much power at all so playing music shouldnt be an issue and gps uses very little battery as well. I dont see an issue with it.
Admittedly, I dont have one of these, dont really have much of a use for one at the moment but I cant possibly see any issues with this.
HOWEVER, there are alternative external battery packs that are MUCH cheaper with less mah capacity (meaning, in simple speak, you would get less power storage meaning that you wouldnt be able to charge your phone as many times as you might like). There are other USB battery packs that might also have less power output (or more) which might mean that you wouldnt be able to keep the screen on AND charge the phone.
Truth be told, I only looked for the highest capacity battery pack given what your situation was AND I tend to buy higher end if the price makes sense. In the case of battery packs similar to this design (external usb battery packs), they generally start at $30 and go to about $80 so buying the best possible makes sense. However, if the highest/best possible was $200, Id probably get something cheaper, but since its only ~$80, if I were in your shoes, that would be my choice.
Id probably consider getting two of them (that is, if we are talking about longer than 1 week excursions, if under a week, just get 1) and a decently long usb cable (3-4 ft) but not too long (you dont want to be tripping over the cable but you need it long enough that if you need to, you can charge the phone mid-day while hiking).
You dont need multiple batteries for the Note, the whole point of this external battery pack is to eliminate the need for them.
littlewierdo said:
Im not sure where you got the .5 amps from, it outputs 1 amp, so it will charge the Note with the screen on. However, it wont charge quite as fast as the wall charger will it will actually charge the phone.
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littlewierdo I was not necessarily speaking of the device you suggested but one I had. I was warning Budge to be careful and not get a device which outputs only .5a. I was suggesting that he find one which will put out 2a if such exists. The device which you suggested will put out 1a. However I don't believe this would be enough for my purposes and maybe no Budge's either. i was not refering to your device or you. Not my intent to get in an argument with you but to help Budge find a suitable solution.
link to imp1000 manual:
http://www.google.com/url?sa=t&rct=...sg=AFQjCNFPt8XfUpeSr8olPnKLYCivrRvqFg&cad=rja
Couldn't make the link post as a link. Do a search for 'imp1000 manual'.
Ciao
Littlewierdo- I didn't disagree with your suggestion to use another battery pack to charge the existing battery. In fact, I have one and use that option myself. I was adding that it may be a good idea to have a spare. I was responding to the OP who mentioned .5 amps. I assume that's where imesg was coming from, too.
Hi people
Since I'm part of the lucky people owning a Huawei Ascend Mate 7 (MT7-TL10), I'm actually looking some accessories like a quick charger.
I wish a charger better than the original one if possible, with EU pins, and with a good quality checked (I prefer to avoid some product with awesome specs but not tested ...)
So anyone have any idea where I can find a good charger, and without any risk for my phone ?
Thanks
WolwX said:
Hi people
Since I'm part of the lucky people owning a Huawei Ascend Mate 7 (MT7-TL10), I'm actually looking some accessories like a quick charger.
I wish a charger better than the original one if possible, with EU pins, and with a good quality checked (I prefer to avoid some product with awesome specs but not tested ...)
So anyone have any idea where I can find a good charger, and without any risk for my phone ?
Thanks
Click to expand...
Click to collapse
for few days i went to jarir book store on KSA . I found Charger good price also 2 USB 5 volt 2.4 Amber ... compatiable with mate 7 and faster from orignal ...
just to know more fasting to charge wil damge your batter of mate 7 quickly .also orignal 2 A will damge
for me I charging with Iphone charge 1A good for batter and Stander and low risk to Device
If you want proper charging, then always use the accessories coming with that product. It is tested for sure and good. Other than that, you can use any charger delivering the same charge. The original charger is 5 volt, 2 Ampere. Don't use anything above 2 amperes as it may damage the device. Below that will charge it slowly.
BTW, why you don't want to use the original charger?
Sent from my Coolpad 9976A using Tapatalk
I use Nexus 6 Turbo charge (made by Motorola) 5v 1.6A it charge full battery in 90 minute.
http://www.motorola.com/us/accessories/power-storage/chargers/motorola-turbo-charger/motorola-turbo-charger-pdp.html
Is it safe for battery life of Mate 7?
I'm using a NTT Docomo Quickcharge 2.0 adapter and It does support it even though is not specified and it's not a qualcomm chip.
Sent from my HUAWEI MT7-L09 using Tapatalk
djmaxi said:
I'm using a NTT Docomo Quickcharge 2.0 adapter and It does support it even though is not specified and it's not a qualcomm chip.
Sent from my HUAWEI MT7-L09 using Tapatalk
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Can you test it with ampere (free in gplay) i don't think it will charge over 1800mA so that it acts like a normal 2a charger
Fast charging
Using a fast charger will destroy your battery faster. Not recommended as the battery is not removable. You can get a battery and if you are comfortable removing the back and swapping it out then go for it.
Hi,
PoopDonkey said:
Using a fast charger will destroy your battery faster. Not recommended as the battery is not removable. You can get a battery and if you are comfortable removing the back and swapping it out then go for it.
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Click to collapse
that is not correct as you are not connecting the charger to the battery directly. In fact the charger is just a power supply. The actual charger is integrated into the phone (charging controller).
In general you need to know that volts are pushed to the device by the power supply and amps are drawn by the device (phone) from the power supply. Therefor using a power supply with more than 5V will kill your phone but using one with 2A, 3A or even 4A will make no difference as the charging controller will just pull the amps required. Because of that you can not really fast charge a phone by changing the power supply only if the phone supports the fast charge option (for example some Nexus phones).
I tested this myself with a power supply (can provide 5V and 1.5 to 4 amps) and an amp meter. The phone always drew between 1.5 and 1.6 amps (with and empty battery, 8 to 10% left) regardless of the selected amps of the power supply. Using a power supply with less than 1.5A will kill the power supply as the phone tries to draw the 1.5 amps or more. As result the power supply will get hot and eventually die.
Since battery is not removable be careful with fast charging, since it will decrease the life span of the battery and in the end it will just give you less battery performance.. it is stupid... however.. there is situations where it can be really needed though but not on a regular basis..
Last weekend I would really had needed fast charging.. It forced me to spend about 3 hours on a cafee so I could make it 100% so I did know I did survive the day with gps and all other things.. However in these situations I really like the ultra power saving mode..it saved me that night.. when I was lost in stockholm.. and my phone was really the only way to get contact with people
blackinfinity said:
Since battery is not removable be careful with fast charging, since it will decrease the life span of the battery and in the end it will just give you less battery performance.. it is stupid... however.. there is situations where it can be really needed though but not on a regular basis..
Last weekend I would really had needed fast charging.. It forced me to spend about 3 hours on a cafee so I could make it 100% so I did know I did survive the day with gps and all other things.. However in these situations I really like the ultra power saving mode..it saved me that night.. when I was lost in stockholm.. and my phone was really the only way to get contact with people
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Why don't you buy a powerbank? I can advice you the xiaomi 16000mah. That one charges fast and you can be mobile.
Any recommendations?
I wonder if a S6 charger do the trick. Stock charger is too slow damn. Spending 3 hours to have a full charge is not acceptable for me.
I'm going to be honest, it doesn't really matter how you charge your phone as long as you don't go over 5v and 2 Amps. Batteries will automatically lose cells from charge cycles and by the time you feel the effects of the battery going bad, you would have already moved on to the next device for the next person to worry about. And saying to use the Stock Charger isn't really good enough as the Stock charger doesn't serve as a Car charger also. If you want to charge your phone quick, and you already have a 2 Amp charger, Check your microUSB cable. Don't use junk cables, buy quality or use the cable you received with the device. You get what you pay for. Fast Charging won't work as the Charger has a chip inside that communicates with the Phone and Device. Also, when buying a charger, don't just randomly buy a charger online, Make sure its UL Tested. Even if it says UL tested, there should be a test number on that UL Label, take it a step further and google it and make sure it matches the charger specs and passes as knockoff chargers are notorious for copying other chargers Regulatory icons to make it seem authentic. You don't want to buy a junk charger that ends up burning your house down or gives you a very bad 120 Volt shock through the microUSB cable that would also kill and fry your phone.
treem said:
I use Nexus 6 Turbo charge (made by Motorola) 5v 1.6A it charge full battery in 90 minute.
http://www.motorola.com/us/accessories/power-storage/chargers/motorola-turbo-charger/motorola-turbo-charger-pdp.html
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Click to collapse
1.6A is nothing.. i use 2.0A and it still chrges 3 hours
one friend conected his phone to a hi suite, he went to repair sistem or something like that, and it pop out an option of QUICK CHARGE... even he doesent know how that hapends, now his phone charges faster. he is on b331 rom
cyvr1 said:
Hi,
that is not correct as you are not connecting the charger to the battery directly. In fact the charger is just a power supply. The actual charger is integrated into the phone (charging controller).
In general you need to know that volts are pushed to the device by the power supply and amps are drawn by the device (phone) from the power supply. Therefor using a power supply with more than 5V will kill your phone but using one with 2A, 3A or even 4A will make no difference as the charging controller will just pull the amps required. Because of that you can not really fast charge a phone by changing the power supply only if the phone supports the fast charge option (for example some Nexus phones).
I tested this myself with a power supply (can provide 5V and 1.5 to 4 amps) and an amp meter. The phone always drew between 1.5 and 1.6 amps (with and empty battery, 8 to 10% left) regardless of the selected amps of the power supply. Using a power supply with less than 1.5A will kill the power supply as the phone tries to draw the 1.5 amps or more. As result the power supply will get hot and eventually die.
Click to expand...
Click to collapse
so much misinformation
this post is the only one who gets it right.
Kalemucu said:
Any recommendations?
I wonder if a S6 charger do the trick. Stock charger is too slow damn. Spending 3 hours to have a full charge is not acceptable for me.
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Click to collapse
You have not read my earlier post or you did not understand it. Changing the charger on the Mate 7 will have NO effect (zero, nada) on the time required to charge your phone except the charger delivers less then appr. 1.6A. Then it would take longer and evetually kill the charger. The Mate 7 uses a Kirin chip which has no fastcharge implemented. Samsung uses Qualcomm Chips with implemented fastcharge technology. The charger (in fact a power supply) and the phone/CPU/charge controller need to communicate with each other, otherwise fastcharge will not be activated (the reason fastcharge with charge-only cables does not work because they lack the required data cables for communication).
I'm going to be honest, it doesn't really matter how you charge your phone as long as you don't go over 5v and 2 Amps.
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Click to collapse
Wrong. Correct would be "I'm going to be honest, it doesn't really matter how you charge your phone as long as you don't go over 5v." The amps of the charger don't matter at all -> amps are PULLED by the phone not pushed to the phone. You could use a charger with 100 or 1000 amps and it would not hurt your phone a bit as long as it is only charged with 5 Volts.
More amps (>1.6A) on the charger do not improve the time for charging one second.
1.6A is nothing. i use 2.0A and it still chrges 3 hours.
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Yes, and that won't change one bit even if you use the best and most expensive charger and a 1000$ cable. The Mate 7 is limited by its hardware (built in charge controller) and pulls max 1.6A. End of story.
As long as you don't understand how charging works you will spend 100's of bucks for cables and chargers to no avail.
The only reason, why charging with some charges is quicker than with others is that those chargers actually deliver the amps they are supposed to deliver. There are a lot of cheap/bad chargers out there which are labelled with 5V/2A but only deliver a fraction of the amps. You can identify those chargers easily because they get extremly hot. I use a 2A charger from Aukey which gets only lukeworm.