Can't find anywhere Archos 101 battery capacity.
Tech specs only inform that it's Lithium Polymer battery, but no mAh info.
Help?
pki101 said:
Can't find anywhere Archos 101 battery capacity.
Tech specs only inform that it's Lithium Polymer battery, but no mAh info.
Help?
Click to expand...
Click to collapse
Found some pics of opened Archos 101, but battery specs are not visible..
If there is someone that have opened Archos 101, please can you check battery specs or put some pics here?
A quick Google search yielded this. 3.7V 6000mAH.
Do someone know the battery specs of the Archos 70 8GB?
The Archos 70 8GB uses a 3.7V 3850mAh battery, according to those that have disassembled it.
macemoneta said:
A quick Google search yielded this. 3.7V 6000mAH.
Click to expand...
Click to collapse
The A101 has two batteries, so if that's really a 101 battery, then it's actually 12 Ah total.
That depends on on whether it's a serial or parallel arrangement. If the batteries are arranged in parallel, then combined they provide 3.7V 12A. If they are arranged in series, they provide 7.4V 6A. I tend to think it's the latter, with a 5V regulator.
macemoneta said:
That depends on on whether it's a serial or parallel arrangement. If the batteries are arranged in parallel, then combined they provide 3.7V 12A. If they are arranged in series, they provide 7.4V 6A. I tend to think it's the latter, with a 5V regulator.
Click to expand...
Click to collapse
I'm not gonna crack it open again to check, but when I had mine open, I'm pretty sure it was parallel. I doubt it's 7.4V with a regulator, I saw no buck converters on board, and it would take about 2 centimeters of board space to add one. That's about 20% of the entire board. Also, you would normally use a 2 cell charger and only regulate the output from the batteries, but the charger is 5V, same as all other single cell chargers.
I'll be opening mine up again to replace the speakers in a couple days, I'll double check then. I really paid no attention, so it could be 2P1S or 1P2S.
Archos 101 battery
Here some spec.
Coslight Battery for Archos 101
Coslight Polymer Li-ion Battery: model CA506686
Nominal Capacity(mAh) Discharge current:0.2C 3000
Voltage（V）3.7
Dimension（mm）Thickness Tolerance(+0/-0.5) 5.0
Dimension（mm）Width Tolerance(+0/-1.0) 66.5
Dimension（mm）Height Tolerance(+0/-1.0) 86.5
Related
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...
Click to expand...
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!!!
Click to expand...
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.
Click to expand...
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!!
I'm scrapping together an external battery pack for the Gtab using 18650 li-ion cells I have laying around.
The plan is to use a 3-cell (3S1P) config giving a nominal voltage of 11.1V. The actual voltage range is ~7.5v to ~12.6v.
The easy way to do this (if it works) is just plugging the pack directly to the 12.0v DC port on the Gtab.
The question is, has anyone tried plugging in 12.6v into the Gtab and NOT fry something? I have not opened up my Gtab yet, but because the internal battery on the Gtab is a 7.4v (nominal) pack, I believe there is an internal step-down regulator to bring 12.0v down to charge the 7.4v pack. I'm estimating the charge voltage for that 7.4v internal pack is 8.6v.
The hard way to do this is to regulate my external battery pack to a 12.0v output from the 3-cell pack with a step-up/step-down circuit. Variations of this can be 4-cells pack with just a step-down circuit or a 2-cell pack with just a step-up circuit, but we are going to lose charge efficiency here.
As a note, li-ion cells require special charging/discharging/handling care, so don't try this if you don't know what is going on. Li-ion cells have a lot of energy density compared to other types of cells, even in a melt-down.
Of course, the easy way is just to buy an external battery pack made for such application:
http://www.amazon.com/Energizer-XP1...M9HC/ref=sr_1_1?ie=UTF8&qid=1311355300&sr=8-1
yelrx8 said:
I'm scrapping together an external battery pack for the Gtab using 18650 li-ion cells I have laying around.
The plan is to use a 3-cell (3S1P) config giving a nominal voltage of 11.1V. The actual voltage range is ~7.5v to ~12.6v.
The easy way to do this (if it works) is just plugging the pack directly to the AC port on the Gtab.
Click to expand...
Click to collapse
Isnt the port on the GTab DC input?
gwynethgh said:
Isnt the port on the GTab DC input?
Click to expand...
Click to collapse
sorry for the confusion... updated OP
This might get you started (but if you can't even use Google...)
http://www.viewsonic.com/gtablet/spec.htm
http://electroniccrap.com/store/index.php?main_page=product_info&cPath=5_12&products_id=4
mike_ekim said:
This might get you started (but if you can't even use Google...)
http://www.viewsonic.com/gtablet/spec.htm
http://electroniccrap.com/store/index.php?main_page=product_info&cPath=5_12&products_id=4
Click to expand...
Click to collapse
What am I missing on the specs page (that can answer my question in the OP)?
anyone have the iGo charger, and is working fine?
"*** DISCLAIMER - The iGo charger outputs 19v and the OEM Charger outputs 12v. The 212 tip that fits the gTablet is NOT officially supported to work with the Viewsonic gTablet by iGo as they claim to have a tip in development. elecctronicCrap is not responsible for any damages that may occur from the use of a 19v charger."
Somewhat confusing as it is sold for the Gtab with this disclaimer saying they are not responsible for any damages from using this 19v charger.
yelrx8 said:
What am I missing on the specs page (that can answer my question in the OP)?
Click to expand...
Click to collapse
From the specs page the adapter power is 12V, so the 12.6V (max) setup you are discussing is only 5% above the supplied charger.
yelrx8 said:
anyone have the iGo charger, and is working fine?
Click to expand...
Click to collapse
I did a search for iGo in the gTablet forum. Searching the forum is way harder than using Google so I apologize for my previous comment; it's just that I happen to be awesome at searching forums. It's a blessing and a curse. It makes a lot of sense that you're asking "who uses an iGo charger" in a thread about a DIY external battery pack, that's obvioulsy the best way to get information.
Anyway, with my search I found out that someone used the iGo charger for a short period of time and then decided to stop. See post 20:
http://forum.xda-developers.com/showthread.php?t=898255&highlight=igo&page=2
yelrx8 said:
Somewhat confusing as it is sold for the Gtab with this disclaimer saying they are not responsible for any damages from using this 19v charger.
Click to expand...
Click to collapse
Yes, and maybe it will cause damage and maybe not. I think the rule of thumb is to keep the voltage within 10% of the recommended charger (i.e. you could go from 10.8V to 13.2V) and be OK. That's a rule of thumb and not a guarantee for any particular device. The gTab's battery is significantly lower at 7.4V so maybe you can power the device with, say, 7.5V DC. Maybe.
ok first of all NEVER drain a 3 cell Li-ion to 7.5v the lowest you should be going is 9v draining it past that just hurts the battery. also i think the gtab uses a voltage regulator to get the voltage to something it can use so you might get away with using 2 cells and seeing if it will charge that way to.
yelrx8 said:
Of course, the easy way is just to buy an external battery pack made for such application:
http://www.amazon.com/Energizer-XP1...M9HC/ref=sr_1_1?ie=UTF8&qid=1311355300&sr=8-1
Click to expand...
Click to collapse
You don't need to pay that much.
How about $20 shipped worldwide ?
http://cgi.ebay.ca/ws/eBayISAPI.dll?ViewItem&item=320659534994#ht_3327wt_905
Xargon321 said:
ok first of all NEVER drain a 3 cell Li-ion to 7.5v the lowest you should be going is 9v draining it past that just hurts the battery. also i think the gtab uses a voltage regulator to get the voltage to something it can use so you might get away with using 2 cells and seeing if it will charge that way to.
Click to expand...
Click to collapse
I using the holder with the PCB's, so 7.5v is the low end cutout.
I'll try the 12.6v batt
Yes, and maybe it will cause damage and maybe not. I think the rule of thumb is to keep the voltage within 10% of the recommended charger (i.e. you could go from 10.8V to 13.2V) and be OK. That's a rule of thumb and not a guarantee for any particular device. The gTab's battery is significantly lower at 7.4V so maybe you can power the device with, say, 7.5V DC. Maybe.
Click to expand...
Click to collapse
I think from that iGo charger thread, seems to be fairly safe to plug in 12.6v to the Gtab. I will try tonight.
Funny reading that thread how people have the mentality that "if it plugs, it works..."
So like I posted in another charger thread, the Gtab power plug spec is 4.0mm x 1.7mm. With that spec, anyone can easily go hunt down an adapter.
********
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.
Click to expand...
Click to collapse
Don't worry, ASUS will remove the charger from the SPECs and say it is no longer supported, problem solved...
The P6800 internal battery is rated at 5100 MaH and the tab itself needs 2 amps to 'accelerate' charge.
What options are there for external battery kits with similar power storage in reasonable size that could be carried to give a full 24 hour usage on the road between recharges?
Sent from my PAblet
I have had some success with a foldable battery dock
pinsb said:
The P6800 internal battery is rated at 5100 MaH and the tab itself needs 2 amps to 'accelerate' charge.
What options are there for external battery kits with similar power storage in reasonable size that could be carried to give a full 24 hour usage on the road between recharges?
it is relatively small but give me extra time on long flights. ReVIVE enerG Portable 5200mAh Battery Dock to Charge, Sync and Display Your Samsung Galaxy Tab 7.0 / 7 Plus / 7.7 / 8.9 / 10.1" - i got it on Amazonjust did Google search and looks like current price is better than i paid in March - hope this helps. .
Click to expand...
Click to collapse
ColBill said:
pinsb said:
The P6800 internal battery is rated at 5100 MaH and the tab itself needs 2 amps to 'accelerate' charge.
What options are there for external battery kits with similar power storage in reasonable size that could be carried to give a full 24 hour usage on the road between recharges?
it is relatively small but give me extra time on long flights. ReVIVE enerG Portable 5200mAh Battery Dock to Charge, Sync and Display Your Samsung Galaxy Tab 7.0 / 7 Plus / 7.7 / 8.9 / 10.1" - i got it on Amazonjust did Google search and looks like current price is better than i paid in March - hope this helps. .
Click to expand...
Click to collapse
Ordered
Sent from my PAblet
Click to expand...
Click to collapse
Any other larger options out there that people have used?
also try Sanyo Eneloop Mobile Booster, specifically the MB-LD2H model with 5400mah capacity
works like a charm!
Sent from my GT-P6800 using xda app-developers app
TeeeJaay said:
also try Sanyo Eneloop Mobile Booster, specifically the MB-LD2H model with 5400mah capacity
works like a charm!
Sent from my GT-P6800 using xda app-developers app
Click to expand...
Click to collapse
Anker 10,000 mAh gives you at least 3 charges and it's only $50 on Amazon.
silkshocker said:
Anker 10,000 mAh gives you at least 3 charges and it's only $50 on Amazon.
Click to expand...
Click to collapse
This is also a nice product, however the downside is it only outputs 3.7v in which if tries to recharge a 5v rated device it will not be able to supply the whole 10,000mah as advertised since most of the power will be wasted powering up the 3.7v to 5v
silkshocker said:
Anker 10,000 mAh gives you at least 3 charges and it's only $50 on Amazon.
Click to expand...
Click to collapse
It won't. It gives almost 2 charges on Note1.
The energy transfer is far from 100% effective.
other options
Since Amazon refuses to ship the ReVIVE enerG to norway, another alternative to the list..
POWEROCKS STONE3
Technical data:
Capacity: 7800mAh
Input: 5V / 2.1A
Output 1: 5V / 2.1A
Output 2: 5V / 2.0A
Dimension: 75 x 75 x 27mm
Weight: 224g
good theme
pinsb said:
The P6800 internal battery is rated at 5100 MaH and the tab itself needs 2 amps to 'accelerate' charge.
What options are there for external battery kits with similar power storage in reasonable size that could be carried to give a full 24 hour usage on the road between recharges?
Sent from my PAblet
Click to expand...
Click to collapse
Any external battery for the P1000N?
Found another powerpack
pinsb said:
ColBill said:
Ordered
Sent from my PAblet
Click to expand...
Click to collapse
I found another powerpack that works pretty good. It is a Naztech PB10400 Universal Power Bank. Here is a link to the data sheet. http://hypercelcorp.com/email_ads/SellSheet/NAZTECH-POWER-BANK-PB10400-SPEC-SHEET.pdf With this exrernal battery i can charge my tab and bluetooth devices at the same time. :cyclops:
Click to expand...
Click to collapse
Found another powerpack
deleted double posting
Hey guys,,,,
Wanna ask something here...
I have an idea to buy a power bank/portable charger, instead of buy a spare battery.
But there are alot of choice, start from 2000mah-10000mah capacities, offerring 2-6 USB port.
Each product offered different USB port voltage and ampere.
For the example, each USB port supplying 5.3V / 5.0V and 1A / 2A / 0.8A....
Do you know which one match/compatible with our phone?
From what i remember from my physics class the should all be compatible. Cellphone battery is 4.3V, so it needs a power higher than that to be re-charged, a pc usb port usuall supplies power at 5V, whilst the A is the amount of energy let through, so the difference in A value impacts the speed at which the portable device recharges the phone battery. The same voltage carrying 1Ah reachrges the batter in half the time needed by one carrying it a 0.5A. Furthermore cell batteries have an internal chip which regulates the tension transmitted. The mAh is the total capacity of the recharging device (or toal amount of A it can store and supply over one h unit of time)
I think the the amperage of charger shouldn't be more 1.0 A. More amperage will charge the battery quickly, but will short his life.
so, I should go for 5V and something under 1.0A?
a product that nearly match those config was sanyo eneloop.
provided 2 USB port 5V and 0.5A or 2x for 1.0A.
physcodelic said:
so, I should go for 5V and something under 1.0A?
a product that nearly match those config was sanyo eneloop.
provided 2 USB port 5V and 0.5A or 2x for 1.0A.
Click to expand...
Click to collapse
At spec of Sanyo Eneloop i see when you use only one of USB port and charge one device you will have charging output of 5V and 1A. When you use both ports you will have charging output of 5V and 0.5A (500mA).
tanec said:
At spec of Sanyo Eneloop i see when you use only one of USB port and charge one device you will have charging output of 5V and 1A. When you use both ports you will have charging output of 5V and 0.5A (500mA).
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I see....
Thanks for the explanation...
Maybe I should go for Sanyo, cause the other products was made by some unknown/unfamiliar brand from chinese.
Better to choose a wellknown brand right?
That's because as i explained before Amperes is the amount of energy that passes through a conductor, if a device has max output of 1A if you use two ports it will obviously split down the tension output. Amperes have nothing to do with battery life, it's not gonna do anything if you charge them faster, what matters is tension (V) which is maintained constant by the chip within the battery itself which gives the battery the 4.25V constant it needs controlled also by the cellphones internal regulatory hw. Poli-ion batteries use an impulse charge system, it's not continuative, that's why constant regular tension is important, aamof recharging the cellphone from car charger does affect negatively battery life. Poli-ion batteries if left unused have a very slow discharge rate, 1% a month, nonetheless life is shortened by about 25% after 100 full cycles and another 25% after 3-4 years of life, and they have no memory effect, so it is always best not to let the battery discharge completely ...Go for better known brand, not for the quality of the product per say but for more guarantees on support and warranty claims
Rudjgaard said:
That's because as i explained before Amperes is the amount of energy that passes through a conductor, if a device has max output of 1A if you use two ports it will obviously split down the tension output. Amperes have nothing to do with battery life, it's not gonna do anything if you charge them faster, what matters is tension (V) which is maintained constant by the chip within the battery itself which gives the battery the 4.25V constant it needs controlled also by the cellphones internal regulatory hw. Poli-ion batteries use an impulse charge system, it's not continuative, that's why constant regular tension is important, aamof recharging the cellphone from car charger does affect negatively battery life. Poli-ion batteries if left unused have a very slow discharge rate, 1% a month, nonetheless life is shortened by about 25% after 100 full cycles and another 25% after 3-4 years of life, and they have no memory effect, so it is always best not to let the battery discharge completely ...Go for better known brand, not for the quality of the product per say but for more guarantees on support and warranty claims
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I'am sorry if I can't understand your explanation fully...
So you mean higher Ampere output than original charger was safe, Am I right?
I bought already sanyo power bank, seems like a nice quality.
Charging time almost same like it was charged on PC USB port.
Thank for your complete explanation
tho I cant understand that completely (stupid me)
physcodelic said:
I see....
Thanks for the explanation...
Maybe I should go for Sanyo, cause the other products was made by some unknown/unfamiliar brand from chinese.
Better to choose a wellknown brand right?
Click to expand...
Click to collapse
That is the best way. I was trying one solar charger, with included LiPo battery with 2600 mAh. The charger was with dimensions of an iphone and can charge included battery from sun and from regular USB charger. His price was something around 6-7 pounds. This kind - Portable-iphone-2600MAh-USB-Solar-Panel-Battery-Charger-for-Mobile-Phone-MP3-MP4 (search in ebay, because i'm a new user and can post links ). Included battery can keep charge for 1 full and one 70% charge of mi Xperia Mini Pro with standart 1160mAh battery. Hope this can help you. The advantages of sanyo charger is that, you can use regular AA battery that you can buy it from every where.
P.S. Sorry for my english. Hope you can understand me
your english was understandable bro
ahhh...a solar charger...will keep this in my mind.
traveling too much with smartphone will be easy with a solar charger