http://androidforums.com/asus-eee-pad-transformer/382444-bargain-car-charger-inverter-uk-5-a.html
Jason71 on AndroidForums.com said:
Hi all
Long time Android addict and just got myself a transformer at the weekend. I have been puzzling the best way to charge it in car (read the threads on the subject) when I happened to wander in to Asda and spotted a mini 75W 12-230v power inverter on sale reduced from £20 to £5!. They are exactly the same as ones that sell on Ebay for 2-4 times that price out of Hongkong e.g.
12V to Mains 75w Car Van Mini Power Inverter Adaptor | eBay
I bought one and tried it on the way home from the store with the Asus AC charger and the transformer and it worked perfectly.
As a bonus it has a usb port built in not only rated at 1000ma but wired to be recognised as an AC charger (many arn't) which means it will do full speed charging on an android phone. So it should supply enough current to charge my HTC Desire even when using it as a satnav (many don’t). The only downside is that the flange on the Asus mains charger covers the edge of the USB port on the inverter so you cannot use both the AC and the USB at the same time without trimming the flange on the Asus a little.
Anyway I thought this was too good a deal not to share it with you guys.
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Click to collapse
So this is what we need! It looks huge though!!
http://www.nextag.com/12v-to-110v-car-adapter/compare-html have fun, go mad?
krugm0f0 said:
http://androidforums.com/asus-eee-pad-transformer/382444-bargain-car-charger-inverter-uk-5-a.html
So this is what we need! It looks huge though!!
http://www.nextag.com/12v-to-110v-car-adapter/compare-html have fun, go mad?
Click to expand...
Click to collapse
The ASUS AC charger is normally working very close to it's limits when running off fairly stable AC mains. Running off this modified sine wave poorly regulated device may be enough to push it past its limits. If you want a good mobile solution that you can use for the TF and other small DC devices, search for the thread by Devcake where he lists options and actual reviews.
I went with this:
http://www.ebay.com/itm/250899196416?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649
And this:
http://www.ebay.com/itm/300547025189?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649
DAFTEK said:
I went with this:
http://www.ebay.com/itm/250899196416?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649
And this:
http://www.ebay.com/itm/300547025189?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649
Click to expand...
Click to collapse
Does your TF indicate charging, e.g. with Dual Battery Widget, using this bullet charger?
E.g. If it outputs 11V-12V it should indicate charging on the TF, but if less than 11V, say 5V-10V, it would trickle charge only (no indicator).
I got one from same guy, and it does not work. I measured 2.8V output.
Bob Smith42 said:
Does your TF indicate charging, e.g. with Dual Battery Widget, using this bullet charger?
E.g. If it outputs 11V-12V it should indicate charging on the TF, but if less than 11V, say 5V-10V, it would trickle charge only (no indicator).
I got one from same guy, and it does not work. I measured 2.8V output.
Click to expand...
Click to collapse
Mine arrived today. I hooked it up to 12v and tested the pins, got 2.8v. Then plugged i transformer and waited about 20 seconds. The transformer said it was charging on AC. I havent checked to see how quickly it was charging, but it gave the charging indication with the screen on.
EDIT: Tried it on another vehicle and now won't charge. Weird!
Any update to this working?
$1.99
I use this one for my phone (HTC Desire HD). It should also be okay for the Transformer, right?
http://www.dealextreme.com/p/car-cigarette-powered-1000ma-usb-adapter-charger-black-dc-12v-40470
/edit 1A limit could lead to slower charging, worst case (?).. by the way, there also is a 2 ampere model : http://www.dealextreme.com/p/universal-2000ma-usb-car-charger-adapter-for-digital-devices-black-12-24v-72961.. at $4 something, twice as expensive
kkoenen said:
I use this one for my phone (HTC Desire HD). It should also be okay for the Transformer, right?
http://www.dealextreme.com/p/car-cigarette-powered-1000ma-usb-adapter-charger-black-dc-12v-40470
/edit 1A limit could lead to slower charging, worst case (?)
Click to expand...
Click to collapse
Nope, won't charge.
Output:5V 1A
DAFTEK said:
I went with this:
http://www.ebay.com/itm/250899196416?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649
And this:
http://www.ebay.com/itm/300547025189?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649
Click to expand...
Click to collapse
This one arrived today, there is one small issue with it, when you first plug it in the lighter the blue light gets bright and the asus orange light goes on and eventually green showing also the charging symbol, but if you unplug the cable from the charger and plug back in, it wont work, you have to unplug the charger from the lighter and plug back in. weird... But it works
This claims to be even more powerful. Just ordered but it will takes ages to get to me.
amm009uk said:
This claims to be even more powerful. Just ordered but it will takes ages to get to me.
Click to expand...
Click to collapse
sorry, I don't think it will work.. the transformer needs 15V to charge, that one only is a 5V charger. i'd cancel my order.
OK, let's go over this again. The TF will charge with 5V at 1.5 amp but take forever to do so. The amps has nothing to do with it. It is the volts. If you feed the TF with 11V to 15V at 1.5 amp's or more it goes into the fast charge mode and charges in about 2 hrs. Anything that says 5V will charge the TF if you have several days to wait. If you have just hours you must charge using 11 to 15 volts at 1.5 amp or more to charge with. This is what the original power supply is doing. Please look at the specifications printed on the original charging brick. Note that it has dual outputs 5V and 15V if you plug your phone into the ASUS charger the charger is smart enough to know not to output 15V however when you plug in the TF the charger outputs 15V to charge the TF in the speedy mode.
Please read over "Dvecakes" thread for even more details and items you can use to charge the TF on the go and at home.
Hope this helps.
hshoem1
You guys need to read my DIY charger thread. For $12 you can make a car charger.
Check the thread links in my signature.
PatrickVogeli said:
sorry, I don't think it will work.. the transformer needs 15V to charge, that one only is a 5V charger. i'd cancel my order.
Click to expand...
Click to collapse
hshoem1 said:
OK, let's go over this again. The TF will charge with 5V at 1.5 amp but take forever to do so. The amps has nothing to do with it. It is the volts. If you feed the TF with 11V to 15V at 1.5 amp's or more it goes into the fast charge mode and charges in about 2 hrs. Anything that says 5V will charge the TF if you have several days to wait. If you have just hours you must charge using 11 to 15 volts at 1.5 amp or more to charge with. This is what the original power supply is doing. Please look at the specifications printed on the original charging brick. Note that it has dual outputs 5V and 15V if you plug your phone into the ASUS charger the charger is smart enough to know not to output 15V however when you plug in the TF the charger outputs 15V to charge the TF in the speedy mode.
Please read over "Dvecakes" thread for even more details and items you can use to charge the TF on the go and at home.
Hope this helps.
hshoem1
Click to expand...
Click to collapse
DevCake said:
You guys need to read my DIY charger thread. For $12 you can make a car charger.
Check the thread links in my signature.
Click to expand...
Click to collapse
Ok that was me being lazy and not reading! Thanks for straightening me out guys. DevCakes's thread is the place for all answers what more can you ask even the links are there
Has anyone by chance tried this car charger?
www.amazon.com/NTK-BULLET-CHARGER-T...Q4VU/ref=sr_1_1?ie=UTF8&qid=1324413368&sr=8-1
Also Does anyone have one of these replacement cables? I think I would probably order one directly from Asus though instead of trying to save a couple of bucks.
www.amazon.com/Aftermarket-Charging...?s=electronics&ie=UTF8&qid=1324413882&sr=1-13
I want to put together a car charger to just leave in the car.
Related
So I've been thinking - the TF has a power requirement of 5V/15v at 2/1.2A, which is the same requirement as the ipad. Really wouldn't see any reason why this wouldn't work so long as the charger has a usb port and you use your OEM cable.
Much easier finding chargers for ipads than the TF, for now. Have some home and car chargers on order and will post results later.
TF's charger requirement is 15V.
smellmyfingers said:
So I've been thinking - the TF has a power requirement of 5V at 2.1A, which is the same requirement as the ipad. Really wouldn't see any reason why this wouldn't work so long as the charger has a usb port and you use your OEM cable.
Much easier finding chargers for ipads than the TF, for now. Have some home and car chargers on order and will post results later.
Click to expand...
Click to collapse
the transformer needs 15v 1.2a to be exact...
Bummer
+10
best buy has a usb charger that you can get, its called a dynex ultimate charger for cameras and camcorders. its like 30 bucks and charges at 11 volts / 1.5 amps. it works great. I had to get one when my usb charger melted. Its the only one that I have found to work. I tried around 30 of them lol
D_Czap said:
best buy has a usb charger that you can get, its called a dynex ultimate charger for cameras and camcorders. its like 30 bucks and charges at 11 volts / 1.5 amps. it works great. I had to get one when my usb charger melted. Its the only one that I have found to work. I tried around 30 of them lol
Click to expand...
Click to collapse
Holly damn. Was that normal use?
Sent from my Transformer TF101 using XDA Premium App
smellmyfingers said:
Holly damn. Was that normal use?
Sent from my Transformer TF101 using XDA Premium App
Click to expand...
Click to collapse
That was the first time I plugged the Transformer in. I didn't even get a full charge out of the thing.
The transformer charger can shift between [email protected] or [email protected]
I have confirmed with my multimeter that the voltage is 5V when charging the transformer
The [email protected] is to charge the keyboard dock, but do not own one to confirm
You can use other chargers, its just Asus's stupid smart charger makes the charging indicator comeup when using the official charger, it also chargers faster, need someone with an electrical background and an oscilloscope to probe it out
I have been meaning to do a test on charging times with different chargers
Overall, as long as the charger is [email protected] under (ex. [email protected]) It will charger, the Transfromer will not show it, but if you check on it the percentages goes up
Ipad chargers are at [email protected] so give it a try
looks like the ac adapter is available online...
http://us.estore.asus.com/index.php?l=product_detail&p=3613
I've tried my ipad charger on my TF.. it charges.. slowly.. (and only with the screen off)
skchan2 said:
looks like the ac adapter is available online...
http://us.estore.asus.com/index.php?l=product_detail&p=3613
Click to expand...
Click to collapse
Cool, at first glance it looks like the cable is longer because of how many times its looped around. I just wrapped my cable around and looks close but not that exaggerated, you think Asus differed the photo? Lol
Sent from my Transformer TF101 using XDA Premium App
Wonder if it would be safe to charge iPhone and iPad through Asus "block".
I plugged my iphone 4 into the Asus block and it seems to charge fine. How safe it is, is another question entirely, but I can confirm it does charge the phone, and the thing didn't spontaneously explode or anything
I was just looking at this;
http://cgi.ebay.co.uk/5V-2A-AC-Adapter-Charger-ipad-2-UK-/200595318074?pt=UK_Computing_LaptopAccessories_PowerSupplies&hash=item2eb469a53a#ht_2366wt_1139
Will this do it or is it likely to fry things at "Output: DC 15v/5A"?
dainesefreak said:
I was just looking at this;
http://cgi.ebay.co.uk/5V-2A-AC-Adapter-Charger-ipad-2-UK-/200595318074?pt=UK_Computing_LaptopAccessories_PowerSupplies&hash=item2eb469a53a#ht_2366wt_1139
Will this do it or is it likely to fry things at "Output: DC 15v/5A"?
Click to expand...
Click to collapse
I am always apprehensive when the item description is not consistent. The heading reads "5V 2A AC Adapter Charger for ipad 2 UK" whereas the output specs are 15V/5A as you stated...
D_Czap said:
best buy has a usb charger that you can get, its called a dynex ultimate charger for cameras and camcorders. its like 30 bucks and charges at 11 volts / 1.5 amps. it works great. I had to get one when my usb charger melted. Its the only one that I have found to work. I tried around 30 of them lol
Click to expand...
Click to collapse
I had reservations on getting the dynex charger but I hate only having charger for any unit I have. I bought it as a backup and cord lenght...lenght is very good. I received the transformer the next day from Amazon and saw the shortness of the stock cable. Brought out the dynex charger set it at. 11 volts and plugged it in and Viola...charges. 11 volts is lower then 15 but it still managed to charge from 29 percent to 100 in a acceptable and fairly good pace. I now use this charger over the stock because the stock charger gets really hot if used for a long time and I really don't feel comfortable. Using it.
life64x said:
I now use this charger over the stock because the stock charger gets really hot if used for a long time and I really don't feel comfortable. Using it.
Click to expand...
Click to collapse
I noticed that too but when I plug it in at night the next morning it's cool. I guess it heats up only when actively charging. Towards the end it should go down to trickle or no charge at all.
funnycreature said:
I am always apprehensive when the item description is not consistent. The heading reads "5V 2A AC Adapter Charger for ipad 2 UK" whereas the output specs are 15V/5A as you stated...
Click to expand...
Click to collapse
Yeah, probably too much of a gamble. Can't even put it down as a Chinglish translation problem when it's figures that are wrong.
dainesefreak said:
Can't even put it down as a Chinglish translation problem when it's figures that are wrong.
Click to expand...
Click to collapse
They prefer the term 'Engrish'.
*Daedalus said:
TF's charger requirement is 15V.
Click to expand...
Click to collapse
Has this been confirmed? I've tested voltage from a USB 3.0 cable from the Asus AC charger and saw 8V. I'll be testing while connected to the tablet once I get my extension cable in. Thread link in signature
http://maxborgesagency.com/press/bracketron-launches-dual-usb-charger/
$24.99 dual USB Cigarette lighter adapter 1 & 2 amp
Reeves360 said:
http://maxborgesagency.com/press/bracketron-launches-dual-usb-charger/
$24.99 dual USB Cigarette lighter adapter 1 & 2 amp
Click to expand...
Click to collapse
Unfortunately, worthless.
Transformer needs 11v-15v to charge reasonably well. Any 5v charger, even at 1000000 amps, will not charge the TF with screen lit, or charge takes days with TF turned off.
Much harder to find auto chargers in the 11v-15v range, some that say 12v are actually not. I found one advertised as 12v (that measures 9.8v actually) and it also did not charge TF. Good luck.
Wont work. Unlike most devices the Transformer does not use 5v to charge like the iPhone and many other Android devices. It does use USB but it will only charge via Asus's special chargers. This is because our Transformers charge via 15volt and the charger cable is actually a USB 3.0 cable that has extra pins in back, and the 15volt pin is one of these extra pins the USB 3.0 layout provides.
Edit Bob Smith42 beat me to it by a few seconds lol
Be aware that it's incorrect to say that the TF won't charge from a standard USB charger. It does charge however it only trickle charges and therefore takes much longer. So let's make sure we are clear when we respond about what works and what doesn't. I used my iPad 2 amp charger on the TF and went from about 30% charge to about 85% charge in about 6 hours (screen off). The absolute fastest way to trickle charge from a generic adapter is with the TF powered off. Hopefully Asus will come out their own car adapter for the TF.
The charger that the original poster mentioned WILL trickle charge the TF. Also new TF users should know that the TF will not give any charging indications when plugged into anything other than the Asus charger - but it is trickle charging none-the-less.
w4rmk said:
The charger that the original poster mentioned WILL trickle charge the TF. Also new TF users should know that the TF will not give any charging indications when plugged into anything other than the Asus charger - but it is trickle charging none-the-less.
Click to expand...
Click to collapse
One thing to mention that you can do if you have the tock is trickl-echarge THAT while still using the pad... then in 5-6 hours when the padd is getting low, you can dock it, and it will charge off of the dock while you keep using it. Once fully charged, undock it again, etc. This is what I want to do, and why I want a second USB cable.
Has anyone found a portable Battery pack that we can use on the TF? I have several that I have used for my iPhone and my old iPad2 but all are only 5v. is there one out there that can charge out TF or is the keyboard dock the only way to go for extra Battery?
There are several battery packs used for notebook computers that will work listed on Amazon. Just be sure they have a 12Volt output. EverReady had as battery pack that will also work but you will need an adapter provided by them. The key is that you need an output of 12 to 15 volts to charge the TF or Keyboard. You might read Devcake's post on a DIY charger for the TF as information on the voltages required to charge the TF. There is also a post on external batteries that might help.
hshoem1
By chance do you have a link to the EverReady battery pack? I would like to see it
hshoem1 said:
There are several battery packs used for notebook computers that will work listed on Amazon. Just be sure they have a 12Volt output. EverReady had as battery pack that will also work but you will need an adapter provided by them. The key is that you need an output of 12 to 15 volts to charge the TF or Keyboard. You might read Devcake's post on a DIY charger for the TF as information on the voltages required to charge the TF. There is also a post on external batteries that might help.
hshoem1
Click to expand...
Click to collapse
I have an XP8000 from Energizer, and work perfectly.
w w w.energizerpowerpacks.com/us/products/xp8000/
You will need a conector for Asus (Willy cable WI15) from them. You will have two free tips a year for the life of product
By any chance do you know the tip number?
The cable you note doesn't appear to connect directly to the Transformer.
What setup are you using to connect to the Transformer?
Thanks
steve
The cable it's a Female USB with 16V output. You need the Asus cable.
xp8000
I looked in the web site and it is expensiver than Asus keyboard!
alberteske said:
I looked in the web site and it is expensiver than Asus keyboard!
Click to expand...
Click to collapse
May as well get the keyboard then xD. Thats the whole point of it being a transformer anyways
RojoNinja said:
May as well get the keyboard then xD. Thats the whole point of it being a transformer anyways
Click to expand...
Click to collapse
Or get both, even better
I just saw this while I'm looking for a battery pack.
On a german page I found this interesting:
w w w.intecro.de/XTPower-MP-16000-Powerbank-mobiler-Akku-mit-16000mAh-fuer-Laptop-Handy-iPhone-iPod-iPad-PDA-MP3-Player-mit-20-Adaptern
(can'f find an english page for this product)
Could I use this one by using an adapter?
I just got an Anker Astro3 10000mAh battery pack. I plan to use it while camping this summer, mainly to charge a phone, but occasionally to charge my tablet.
It is intended to charge 5V USB devices, and has two USB ports. It also has a 12 volt port. The adapters for the 12 volt port, of course, do not work with USB or the Transformer. So I made an adapter, and I am good to go now for charging the tablet.
The battery pack charges from a 12 volt wall charger. I have also made an adapter to charge it from the 12 volts on my motorcycle. So I will be charging it from the motorcycle during the day when riding, then using it to charge my devices in the evening at the camp. I've already tried it a couple of times, and it worked well.
I tried to charge the battery pack using a solar panel, but the solar panel was far too wimpy. It was like trying to run a house air conditioner from a penlight battery. It may make you feel good to try it, but it isn't going to do much.
So far so good. This is very close to what I need.
The issues I have had to work around are:
1) I want to also charge an in helmet bluetooth intercom from the USB port. But the charge current is so low, the battery pack auto powers off, thinking nothing is plugged in. Not a big deal because I can plug in my phone at the same time. That keeps it turned on until everything is charged, then it auto shuts down.
2) When I charge the Asus Tablet, it doesn't appear to auto shut down. Just the opposite of #1, it looks like the load stays high enough to never shut down when charging the tablet. This may not really be true, as I have only tried it a couple of times. Also, it isn't good for much more then one and a half charges of the tablet, as expected.
3) You need to figure out your own harness to get the 12 volts to the tablet.
4) No charge cable for a car. I mean this is rated for an input of like 10 to 15 volts, or some such. This thing is GREAT for charging portable devices. Charging it from a car is as simple as a cable, but there isn't one.
Over all this charger is a winner. At right around $55 US, I recommend it, if you can fabricate a plug for charging the Transformer.
Try a 12V UPS type battery along with a 2A fuse and adapters. It only costs about $20 or so. Plan on using only 50% of its capacity and recharge often to get the most life out of it.
Someone posted this product on another post
http://www.sobuying.com/products/Solar-Charger-For-Notebook,-Ipad,-tablet-pc,-Cell-phone,-MP3,-Laptop-11200mAh.html
May suit your needs
NiHaoMike said:
Try a 12V UPS type battery along with a 2A fuse and adapters. It only costs about $20 or so. Plan on using only 50% of its capacity and recharge often to get the most life out of it.
Click to expand...
Click to collapse
For me, this is actually what I use now. But it has issues.
One is simply that it is large. I carry it in the trailer that I tow behind the motorcycle, so it is OK, but a bit too large and heavy. It is a gel cell that has about a 48 WattHr capacity. LiIon has a a lot less and weight. In this case, it has about the same capacity, in a very small light weight package.
The other problem is charging the lead acid battery is an issue. I need to carry a AC charger and find AC when camping. I put a diode/resistor combo in the trailer and tapped off of the taillights. but by the time the weak motorcycle voltage gets to the taillights, add in the diode and other losses, and I'm lucky to see 13 volts at the battery. Not enough to charge it very well. The LiIon pack I use has the supply built in to charge properly from +12.
So I've tossed the lead brick battery (literally) and upgraded to a portable LiIon pack. So far so good.
This is what I use "Portable 12V DC USB 5V Rechargeable Lithium Li-ion Battery Pack for CCTV Camera" search on ebay, you can get one up to 13AH
I got a 3.8AH version for $16 , Dimension: 9.2cm X 6.0cm X 3.0cm
Outout rated 5V (5.8AH) and 12.8V (3.8AH)
small modification because the charger is NON-US wall plug, I just pull the plug pin out and add in a regular power cord cut off from an old appliance
Keep the USB plug for 5V use, cut the 12V DC cable and connect it to a female USB cable (pin 1 and pin 4) , then you can plug in the Asus usb/charge cable directly and charge or power the Asus
...
When ever I drive, I have my phone hooked up to my Escort Red Line radar detector and my car's stereo via bluetooth (both). In order for me to use the radar detector effective, I need to have GPS and Blueooth enabled. This is a HUGE SUPER OMG battery drainer for my amaze. 20 minutes drive kills about 35% of the phone's power. My radar detector offers a slot to charge my phone BUT it still drains, not enough juice flowing in. Someone said it is because it's probably a .5amp.
So I am running a extension from the 12v lighter that's in the trunk to the front of my car. Amazon has a generic 2.1amp for 3 bucks.
http://www.amazon.com/Premium-Heavy...121&sr=8-1&keywords=htc+amaze+car+charger+amp
But on ebay, I found the original HTC car charger for 15 bucks which is a 1amp.
http://www.ebay.com/itm/HTC-Amaze-4...918506?pt=PDA_Accessories&hash=item27c867022a
What do you guys recommend? My logic says go for the 2.1amp, the phone will draw as much as it needs from it.
The 1amp.
Anything higher you'll damage the phone or the battery.
A wall plug power supply or a usb supply is 5.0v/1amp.
The 2.1 amp is probably 1 amp per port. Although it does not seem to specify.
F9zSlavik said:
What do you guys recommend? My logic says go for the 2.1amp, the phone will draw as much as it needs from it.
Click to expand...
Click to collapse
Right!:good:
---------- Post added at 09:23 AM ---------- Previous post was at 08:41 AM ----------
soundping said:
The 1amp.
Anything higher you'll damage the phone or the battery.
A wall plug power supply or a usb supply is 5.0v/1amp.
Click to expand...
Click to collapse
That means a higher capacity battery (more current NOT MORE VOLTAGE) will damage the phone?!!!!
Totally wrong!
A higher current will not damage the phone. A higher voltage will do it!
Please do not mix the current with voltage!
Voltage is same 5 Volts (±5%) for these “USB like” applications (1A or 2.1A power supply our case )They use USB socket/connector but usually only pin 1 and 4 (+ and-)
Regular computer USB port can supply max 0.5-0.9 A depending on version.
For battery charging devices the current can go to 5A.
Higher voltage will trip a warning window telling you to disconnect and use official HTC equipment.
The phone monitors input voltage to protect the equipment.
nyc_tdi said:
That means a higher capacity battery (more current NOT MORE VOLTAGE) will damage the phone?!!!!
Totally wrong!
A higher current will not damage the phone. A higher voltage will do it!
Please do not mix the current with voltage!
Voltage is same 5 Volts (±5%) for these “USB like” applications (1A or 2.1A power supply our case )They use USB socket/connector but usually only pin 1 and 4 (+ and-)
Regular computer USB port can supply max 0.5-0.9 A depending on version.
For battery charging devices the current can go to 5A.
Click to expand...
Click to collapse
and to add to that... unless you take the charger apart and short pins 2 and 3, it will only ever draw 500mA, as it assumes that it is hooked up to a regular powered USB port... I have bought multiple car charger usb adapters, and I have taken all of them apart and soldered the 2nd and 3rd pins together... otherwise charge time = forever, and sometimes it won't even charge if you have wifi or data/gps/bluetooth all going at once...
I recently got an Amaze and am generally happy with it. The biggest problem I have right now is finding the right car charger for it because the car charger I previously used (a 1A monoprice car charger) doesn't give it enough charge. I have been reading through the forums and some has been saying that if the charger is not working properly, it will recognize it as charging via USB rather than AC. In my case, the phone seems to be reading it as charging through AC, but there still doesn't seem to be enough current going through it. The phone will only charge if NOTHING is going on (i.e. screen's off, no GPS, etc.). I've been using CoPilot GPS and it draws the battery like crazy. Anyone has any idea as to which car charger would work properly with the Amaze such that I'll be able to charge (or at least maintain the charge) while using it as a GPS? Do I need to go up to a 2.1A charger?
I would look for a 4-5 star rated 2.1a car charger on Amazon.
Just read through the comments and feedback and you'll find one that's right for you.
I prefer the USB charger base itself and then using the OEM cable that came with the Amaze.
It seems to charge faster with that cable, at least to me anyway.
Remember though if it's rated 2.1a but has two USB slots that 2.1a will be cut in half if used to charge two different devices.
Hope this helps.
I couldve sworn we talked about this months ago. Let me see if I can find the thread.
nguyendqh said:
I would look for a 4-5 star rated 2.1a car charger on Amazon.
Just read through the comments and feedback and you'll find one that's right for you.
I prefer the USB charger base itself and then using the OEM cable that came with the Amaze.
It seems to charge faster with that cable, at least to me anyway.
Remember though if it's rated 2.1a but has two USB slots that 2.1a will be cut in half if used to charge two different devices.
Hope this helps.
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Click to collapse
you won't get the full 2.1a unless you usee a charge only cable or modify the charger as I stated above...
I ended up getting a 2.1A car charger and a USB charge only cable, and it's working perfectly. When I have the screen on full brightness and doing navigation with Co-Pilot GPS, my phone's no longer losing charge and is actually charging. The combo also works with my tablet as well.
blast0id said:
and to add to that... unless you take the charger apart and short pins 2 and 3, it will only ever draw 500mA, as it assumes that it is hooked up to a regular powered USB port... I have bought multiple car charger usb adapters, and I have taken all of them apart and soldered the 2nd and 3rd pins together... otherwise charge time = forever, and sometimes it won't even charge if you have wifi or data/gps/bluetooth all going at once...
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Click to collapse
This is damn helpful! So THAT is why when driving and using gps or whatnot I would always lose more battery even on charger.. So basically I can just solder the middle 2 pins together to trick it into thinking it is being powered like a home charger? No chance it will hurt anything I assume?
Silentbtdeadly said:
This is damn helpful! So THAT is why when driving and using gps or whatnot I would always lose more battery even on charger.. So basically I can just solder the middle 2 pins together to trick it into thinking it is being powered like a home charger? No chance it will hurt anything I assume?
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Click to collapse
I have done this to every single one of my USB car chargers... not a single issue...
Hi all,
When I use the charger that came with the HTC One my phone charges great, rapid.
But when I use any other charger that I have in my home/office it charges very slow. Even with a 2.1 amp charger!
The charger that comes with the phone has an output of 1 amp.
I've tried multiple other chargers (1 amp and 2.1 amp) and they all trickle charge.
Anyone else noticing this?
Thanks
Joe
I'm using old charges at home and in the office and it did seems slow but had not heard of rapid charge. Will the phone indicate this rapid charge mode? If not, is it real?
I'm getting slow charging even on the stock HTC charger. Not sure how I can enable this rapid charge cause 4+ hours from 0-1% to full is a bit ridiculous.
use orginal charger is best , maybe it has some relationship with your battery life
If anyone is coming from phones with smaller batteries, remember the larger the capacity the long it takes to charge.
I use the cable and charger from my Nexus 7 and it charges fast. Off my USB it is slow.
Real AC chargers have two pins shorted. You can hack a USB to micro USB cable and short the same two pins to enable AC charging with any adapter, wall, USB, or car. Should be pins 3+4, but don't hold me to that.
Sent from my HTC One using xda app-developers app
flooty333 said:
Hi all,
When I use the charger that came with the HTC One my phone charges great, rapid.
But when I use any other charger that I have in my home/office it charges very slow. Even with a 2.1 amp charger!
The charger that comes with the phone has an output of 1 amp.
I've tried multiple other chargers (1 amp and 2.1 amp) and they all trickle charge.
Anyone else noticing this?
Thanks
Joe
Click to expand...
Click to collapse
Try to change your phone
c5satellite2 said:
Real AC chargers have two pins shorted. You can hack a USB to micro USB cable and short the same two pins to enable AC charging with any adapter, wall, USB, or car. Should be pins 3+4, but don't hold me to that.
Sent from my HTC One using xda app-developers app
Click to expand...
Click to collapse
i've done exactly this, and damned if the One still refuses to draw more than ~500 ma off of anything but the 2.1 A wallwart it came with (i don't have any others to try with). i'm about to dig out an old inverter to see if that will actually work. wish i'd paid more attention to my EE dad when i lived at home; i've gotten a serious crash course in this stuff while trying to get my One to charge in my car, when it's on.
edit: so i got my old inverter out, and spent about 15 minutes testing. i used the 2.0A adapter that came with my Nexus 7 to test, as well as the 3.1A Mediabridge adapter i got here. my phone was at about 45% when i started testing. unplugged, Battery Monitor Widget reported a drain of anywhere between 500ma and 650ma (running Ingress, wifi on). plugged in to the Mediabridge adapter showed, at best, a drain of 50ma. the Nexus adapter plugged in to my inverter charged at a fairly consistent ~120ma. i didn't touch my phone the entire time.
i left my Nexus 7 at work so i can't use it to repeat the test, but i will do so tomorrow. the cable i'm using is this one. i'm not crazy about having a ridiculous DC-AC inverter in my car for my phone, but if that's what i have to do so it can be used and not drain, then so be it. admittedly, i don't really understand these things enough to explain these variations, but i plan on learning ASAP. perhaps somebody else can shed some light on why the device charges different, and how it identifies an AC-USB adapter vs a DC-USB adapter.
sluflyer06 said:
If anyone is coming from phones with smaller batteries, remember the larger the capacity the long it takes to charge.
Click to expand...
Click to collapse
Math doesn't support what is happening though. Phone has a 2300mAh battery. The OEM charger outputs 1A (1000mAh)
At most, it should be around 3 hours for full charge, when in fact it is closer to 4-4.5 hours. It's the last 10% that is the issue, it will trickle charge to 100% rather than rapid charge.
nest75068 said:
Math doesn't support what is happening though. Phone has a 2300mAh battery. The OEM charger outputs 1A (1000mAh)
At most, it should be around 3 hours for full charge, when in fact it is closer to 4-4.5 hours. It's the last 10% that is the issue, it will trickle charge to 100% rather than rapid charge.
Click to expand...
Click to collapse
Yes, I think that's exactly what the HTC does... I read a pretty good article recently about Li-Ion batteries that talks about how trickle charging is the best for battery life, and it wouldn't surprise me if HTC got a little aggressive the way the this phone charges since we can't swap the battery ourselves.
I'm trying one last car charger, which matches the wattage of my Nexus 7's 5Vdc/2A AC adapter (which I've had the best luck with, when charging the phone while in use): http://www.amazon.com/gp/product/B009TBF7IG/ref=oh_details_o00_s00_i00?ie=UTF8&psc=1
If that doesn't work, I'm going to put a 300W inverter in my car with the AC adapters themselves and stop buying stinking DC adapters. This phone clearly pays very close attention to the wattage available from whatever it's plugged in to.
veener79 said:
I use the cable and charger from my Nexus 7 and it charges fast. Off my USB it is slow.
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Click to collapse
Same here, 2a Nexus 7 brick with a long Logitech USB cable, much faster than stock (and longer)
Harbinger1080 said:
Yes, I think that's exactly what the HTC does... I read a pretty good article recently about Li-Ion batteries that talks about how trickle charging is the best for battery life, and it wouldn't surprise me if HTC got a little aggressive the way the this phone charges since we can't swap the battery ourselves.
I'm trying one last car charger, which matches the wattage of my Nexus 7's 5Vdc/2A AC adapter (which I've had the best luck with, when charging the phone while in use): http://www.amazon.com/gp/product/B009TBF7IG/ref=oh_details_o00_s00_i00?ie=UTF8&psc=1
If that doesn't work, I'm going to put a 300W inverter in my car with the AC adapters themselves and stop buying stinking DC adapters. This phone clearly pays very close attention to the wattage available from whatever it's plugged in to.
Click to expand...
Click to collapse
I'm fortunate my car has a built in inverter that I use for charging my phone.
nest75068 said:
I'm fortunate my car has a built in inverter that I use for charging my phone.
Click to expand...
Click to collapse
My next car will too, because I can only imagine that power requirements for these devices is going to increase.
That said, I think I have a winner, and instead of retyping my posts, I'll just link to that thread instead: http://forum.xda-developers.com/showpost.php?p=41797839&postcount=6
Since the snap Dragon 600 has fast charging capabilities, why didn't HTC Include it in the kernel??? I've noticed my 2500 mAh note battery charges faster than my 2300 MAH HTC one
Sent from the Sexiest Android Device (HTC One)