Car Charging? - HTC EVO 3D

So I went on a 2 hour trip using my EVO as a gps. I had it plugged into the car charger the entire time. Little did I know the EVO was using the battery faster than it was charging. I've done this many times with the EVO 4G with no problems. Any suggestions? The phone is basically useless as a gps for any long distance trips. The battery will never last.
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get current widget, it tell you how fast your phone is charging, and when unplug how fast your phone is draining in mah, note your mah usage when unplug, then note your mah usage when battery is fairly low and plugged in to charge with the car charger.
if your battery is low (below 50%) and your phone still won't charge faster than 500mah on the car charger, it will not keep up with GPS uses, be aware that as the battery approach full, it charges slower and slower, near 97~99% it will only charge @ about 100mah rate.
I bet you have a cheapy car charger that only supply 500 mAmp, get one that can supply 1000 to 2000 mAmp (1A to 2A... 2A usually for DUAL usb outlet type charger)

deleted... double post hmmm

Mine wasn't charging unless it was plugged into the wall until I typed ##3828# and checked "enable USB charging". Now it charges while plugged into a computer or car as well.
Password is your MSL, lots of posts how to get it. Not responsible if you mess your phone up.
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bitslizer said:
get current widget, it tell you how fast your phone is charging, and when unplug how fast your phone is draining in mah, note your mah usage when unplug, then note your mah usage when battery is fairly low and plugged in to charge with the car charger.
if your battery is low (below 50%) and your phone still won't charge faster than 500mah on the car charger, it will not keep up with GPS uses, be aware that as the battery approach full, it charges slower and slower, near 97~99% it will only charge @ about 100mah rate.
I bet you have a cheapy car charger that only supply 500 mAmp, get one that can supply 1000 to 2000 mAmp (1A to 2A... 2A usually for DUAL usb outlet type charger)
Click to expand...
Click to collapse
Can you point me in the direction of a 1000/2000 chargers?

ianoob said:
Mine wasn't charging unless it was plugged into the wall until I typed ##3828# and checked "enable USB charging". Now it charges while plugged into a computer or car as well.
Password is your MSL, lots of posts how to get it. Not responsible if you mess your phone up.
Sent from my PG86100 using XDA Premium App
Click to expand...
Click to collapse
So i enabled usb charging and when I go back into the ##3282# menu it it always reverts back. How do you get it to stick.
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bitslizer said:
get current widget, it tell you how fast your phone is charging, and when unplug how fast your phone is draining in mah, note your mah usage when unplug, then note your mah usage when battery is fairly low and plugged in to charge with the car charger.
if your battery is low (below 50%) and your phone still won't charge faster than 500mah on the car charger, it will not keep up with GPS uses, be aware that as the battery approach full, it charges slower and slower, near 97~99% it will only charge @ about 100mah rate.
I bet you have a cheapy car charger that only supply 500 mAmp, get one that can supply 1000 to 2000 mAmp (1A to 2A... 2A usually for DUAL usb outlet type charger)
Click to expand...
Click to collapse
Also, I have a decent charger. It's one of the ones that has two ports on it. By the way I was only charging the EVO 3D I didn't have anything else connected.
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billyapd21 said:
So i enabled usb charging and when I go back into the ##3282# menu it it always reverts back. How do you get it to stick.
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Click to expand...
Click to collapse
Usually in that mode you have to click menu then hit commit modifications..
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billyapd21 said:
So i enabled usb charging and when I go back into the ##3282# menu it it always reverts back. How do you get it to stick.
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Click to expand...
Click to collapse
After checking the box, hit menu apply changes
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I've never had a problem using this older but more powerful iGo AutoPower 3000 car charger. Overstock has them for $6.50+shipping and you get a bunch of power tips with it but not a microUSB tip.
http://www.overstock.com/Electronics/iGo-AutoPower-3000-Car-Charger-Power-Adapter/3668307/product.html
The power specs on the package I have say:
DC Input: 11.5-16 VDC
Power Output: Up to 15 Watts continuous
Radio Shack sells the iGo a97 tip for $10+taxes but Amazon has the tip for $6+shipping(free shipping if you have prime).
http://www.amazon.com/iGo-Kindle-Motorola-RAZR2-KRAZR2/dp/B0012J52OC/ref=sr_1_1?ie=UTF8&qid=1310316568&sr=8-1
From my understanding, the tips have a resister in them which limits the mAmp output but I'm not sure what the a97 tip specs are since iGo doesn't seem to release that info. Hopefully it's 1A like the wall charger. I can verify that the newer single output iGo chargers are limited to .75A. So even if the tip is 1A, the charger is the limiting factor, hence why I recommend the older, more powerful one.

billyapd21 said:
Also, I have a decent charger. It's one of the ones that has two ports on it. By the way I was only charging the EVO 3D I didn't have anything else connected.
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Click to expand...
Click to collapse
Read the label on the charger, make sure it say at least 1A or even better 2A
lots of cheapy dual USB on ebay that's not rated for 2A
if you got a 2A charger and current widget still show 500ma charge rate,
then you may have to figure out if your phone is charging in USB charge mode with the car charge (limit to 500ma by the phone per USB spec) or in AC charge mode (charge at up to 1A)
I just came across this other day that point out this problem.
http://www.amazon.com/gp/customer-m...B9U8Q/ref=cm_ciu_pdp_images_3?ie=UTF8&index=3
look at the mouse over box comment... of course every charger is different so don't just blindly do the mod if you have a different charger.
as for the other guy asking for 2A charger....
Ebay and Amazon have alot, just make sure they specificly say 1A for single USB or 2A for dual USB output.
for 2A dual USB, the OEM HTC thunderbolt one seem to be the best but also most pricey, some alternative are the Motorola dual usb and the Tmobile my touch 4g dual USB

MRBULLRED said:
Usually in that mode you have to click menu then hit commit modifications..
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Click to expand...
Click to collapse
It's weird, I click the box for usb charging then click commit changes and a little box pops up "no changes made" I'm not sure how to save the changes.
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billyapd21 said:
It's weird, I click the box for usb charging then click commit changes and a little box pops up "no changes made" I'm not sure how to save the changes.
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Click to expand...
Click to collapse
Test it, it may have taken
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Was having the same issue;
I used the car charger I had for my EVO, left it on for 3+ hrs, with little to no increase from where I put it on at. Ended up using a buddy of mine sharger and viola. Imex99 explained the reason for it. Just buy a new charger with 1A/2A output rating and you'll be good.

I'm having the same issues. I click enable usb charging and then commit, but it keeps reverting back to disabled with no difference in charging capability.

Speaking of car charging, why does the battery temperature vary so much between AC & USB, versus Car charging?
With the supplied HTC AC charger or USB connected to a computer, the battery's charging voltage is 4.333 volts and the temperature is 81*F.
With a Sprint Car Charger, the charging voltage is 4.333 volts but the temperature is 95.5*F

Even chargers rated at 1A/2A may not have the appropriate pins soldered together to enable 1amp charging. Please see this thread I made when I had the Evo 4G:
http://forum.xda-developers.com/showthread.php?t=767961

GooseEye said:
I've never had a problem using this older but more powerful iGo AutoPower 3000 car charger. Overstock has them for $6.50+shipping and you get a bunch of power tips with it but not a microUSB tip.
http://www.overstock.com/Electronics/iGo-AutoPower-3000-Car-Charger-Power-Adapter/3668307/product.html
The power specs on the package I have say:
DC Input: 11.5-16 VDC
Power Output: Up to 15 Watts continuous
Radio Shack sells the iGo a97 tip for $10+taxes but Amazon has the tip for $6+shipping(free shipping if you have prime).
http://www.amazon.com/iGo-Kindle-Motorola-RAZR2-KRAZR2/dp/B0012J52OC/ref=sr_1_1?ie=UTF8&qid=1310316568&sr=8-1
From my understanding, the tips have a resister in them which limits the mAmp output but I'm not sure what the a97 tip specs are since iGo doesn't seem to release that info. Hopefully it's 1A like the wall charger. I can verify that the newer single output iGo chargers are limited to .75A. So even if the tip is 1A, the charger is the limiting factor, hence why I recommend the older, more powerful one.
Click to expand...
Click to collapse
i use this too. works great

Related

Slow charging?

I don't know if it's a kernel/rom problem, or a hardware controller that's at fault, but ever since I got this phone charging in car chargers, computer usb outlets, and even alternate wall chargers has been painstakingly slow!
It takes forever to charge, and takes a dedicated powerful wall outlet to even do anything.
Anyone else experiencing this?
The default Samsung Provided Wall outlet charger provides .7A of power, while USB provides .5A of power max. Also what percentage do you charge it at, and can you take a screenshot of your battery usage graph?
The 3rd party chargers that designed for iDevices are not recognized as AC chargers and will be charging at USB mode which is much shower.
Sent from my SAMSUNG-SGH-I777 using XDA App
According to Entropy512, here is the quote:
Improved battery charge algorithm for faster charging - Initial research indicates we have an alternate battery charger chip (MAX8922) that differs from the MAX8997 used in the I9100. We DO have an 8997 also - but on our device for some reason Samsung decided to use an alternate chip instead of using the 8997's built-in charging. This means we have far fewer options (90,400,660 mA) in terms of charge rates compared to the I9100 (from 200 to 950 in 50 mA steps). So we might not be able to implement any fancy charging algorithms.
Click to expand...
Click to collapse
So if I am understanding correctly we were limited to 660 mA at max and unless some way to change it is found, there is unfortunately no use from more powerful chargers .
Battery Charge
Bowsa2511 said:
I don't know if it's a kernel/rom problem, or a hardware controller that's at fault, but ever since I got this phone charging in car chargers, computer usb outlets, and even alternate wall chargers has been painstakingly slow!
It takes forever to charge, and takes a dedicated powerful wall outlet to even do anything.
Anyone else experiencing this?
Click to expand...
Click to collapse
Perhaps you have either a faulty battery or a faulty charger.
Here is a link where you can buy a new battery and wall charger for under 8 bucks for both with free shipping!
Check it out here: http://www.ebay.com/itm/1800m-BATTE...045605?pt=PDA_Accessories&hash=item43aa9a4465
Put your phone in to power saving mode and see if it charges faster.
Other wise exchange it under warranty.
I've experienced that this devices charges significantly slower then my previous devices.
I found it odd when I saw the stock a/c USB adapter outputs at .7mA so i did a starch and found an article out there with a statement from Samsung stating that their devices are designed to charge slow because it's healthier for the battery.
I don't know if the charging current is restricted by some code in the kernel or a physical chip in the main board.
Sent from my SAMSUNG-SGH-I777 using xda premium
It is true that slow charges do increase the overall life of the battery. Also not charging it all the way or discharging it all the way will keep the life of the battery. If you discharge the phone all the way down, it will take much longer to charge than charging it back up from 20% or so.
I got one of these to combat this problem:
http://www.amazon.com/gp/product/B005LGUEE0/ref=oh_o00_s00_i00_details
Even comes with an official battery.
poofyhairguy said:
I got one of these to combat this problem:
http://www.amazon.com/gp/product/B005LGUEE0/ref=oh_o00_s00_i00_details
Even comes with an official battery.
Click to expand...
Click to collapse
Can you please post the output voltage and amperage for the battery charger on that accessory? Should be either on a sticker on the bottom of the device our written in fine print on the charger.
Also just to double check, it does not charge a docked device, just the spare battery?
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fone_fanatic said:
I've experienced that this devices charges significantly slower then my previous devices.
I found it odd when I saw the stock a/c USB adapter outputs at .7mA so i did a starch and found an article out there with a statement from Samsung stating that their devices are designed to charge slow because it's healthier for the battery.
I don't know if the charging current is restricted by some code in the kernel or a physical chip in the main board.
Sent from my SAMSUNG-SGH-I777 using xda premium
Click to expand...
Click to collapse
Physical chip. However on other GS2s and original GalaxyS phones, the chip was fairly controllable by the kernel.
Ours isn't - it has three settings. 90, 400, 660 mA.
fone_fanatic said:
Can you please post the output voltage and amperage for the battery charger on that accessory? Should be either on a sticker on the bottom of the device our written in fine print on the charger.
Also just to double check, it does not charge a docked device, just the spare battery?
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Click to expand...
Click to collapse
It is 600mA, and it just charges the spare battery.
I strongly advise against buying third party batteries or chargers. The Galaxy S 2 (AT&T version) uses a battery with NFC technology. Using anything other than an OEM Samsung battery, or an NFC compliant battery could cause damage to your device.
Sent from my SAMSUNG-SGH-I777 using XDA Premium App
Mine isn't third party. All official. Just cheaper thanks to Amazon.

Charger - Volts and Amps

So my charger met with an untimely demise. I am unable to get my hands on a replacement one at the moment.
I am currently using my computer's USB port which as you will know doesn't give quite enough juice. I have seen a microusb charger with 5V and 2A. Will this do a job (and also not get rid of the message that i am drawing more juice than the battery is getting)?
I use the charger that came with my Evo 4g. It needs to sit overnight, but it charges to green.
milomak said:
So my charger met with an untimely demise. I am unable to get my hands on a replacement one at the moment.
I am currently using my computer's USB port which as you will know doesn't give quite enough juice. I have seen a microusb charger with 5V and 2A. Will this do a job (and also not get rid of the message that i am drawing more juice than the battery is getting)?
Click to expand...
Click to collapse
No.
The reason for the strange shape USB lead HTC have is that it gives 9V and 1.7A - 5V isn't going to cut it, it will charge but ever so slowly and if you try to charge whilst using it you'll probably find it doesn't, it just discharges more slowly.
If I were to take an old wall wart I have here that is 9V and 2A and wire a standard micro USB cable to it, would that work to charge my flyer quickly? In other words is the strange connector necessary or just the 9V and 2A?
Sent from my PG41200 using Xparent Purple Tapatalk 2
bsoplinger said:
If I were to take an old wall wart I have here that is 9V and 2A and wire a standard micro USB cable to it, would that work to charge my flyer quickly? In other words is the strange connector necessary or just the 9V and 2A?
Sent from my PG41200 using Xparent Purple Tapatalk 2
Click to expand...
Click to collapse
NO, because the fast charge requires the special connector on the HTC power cord , a micro-usb will not allow the Flyer to draw the high current.
DigitalMD said:
NO, because the fast charge requires the special connector on the HTC power cord , a micro-usb will not allow the Flyer to draw the high current.
Click to expand...
Click to collapse
so an adaptor with a usb slot and using the usb cable would work?
milomak said:
so an adaptor with a usb slot and using the usb cable would work?
Click to expand...
Click to collapse
If you're using the HTC-specific microUSB cable, the adaptor would have to provide the correct amount of power (9V and 1.7A). Most usb power adaptors do not provide the adequate amount. A little while back, I made the mistake of taking just my phone usb adaptor to charge everything on a trip out of the country for nearly two months. It worked great for everything except for my View. Even though I had the HTC-specific usb cable for the View, it was still like charging via a computer usb port. It would get the job done if I left it all day or all night, but it took forever to charge.
I really would try to track down an OEM charger. Even if you find a usb adaptor that puts out the right amount of power, it still might not provide the short amount of charging time that the OEM charger does. It should theoretically, but many users have had charging time woes when using anything but the OEM charger.
DigitalMD said:
NO, because the fast charge requires the special connector on the HTC power cord , a micro-usb will not allow the Flyer to draw the high current.
Click to expand...
Click to collapse
No it doesn't. A member of my site took the OEM charger, wired a 90 degree micro USB port to it, charges at full speed.
Sent from my Transformer TF101 using Tapatalk 2
Volts and Amps - PowerFlask
From the posts on this subject it seems that the Powerflask 13000 mAh powerbank I bought today and which charges at 5.3 volt with a 1amp and 2.5 amp port won't properly charge my flyer?
Can I safely use the 2.5amp port or should I rather stick to the 1amp port.
Any advice would be much appreciated.
Thanks
Maffs,
Maffs said:
From the posts on this subject it seems that the Powerflask 13000 mAh powerbank I bought today and which charges at 5.3 volt with a 1amp and 2.5 amp port won't properly charge my flyer?
Can I safely use the 2.5amp port or should I rather stick to the 1amp port.
Any advice would be much appreciated.
Click to expand...
Click to collapse
Folks on here have mentioned that the device (and other tablet/smartphone devices) will only draw the amount of current (amps) it needs. So using a charger with a higher amp rating is not a concern (in theory).
But I think others have debated this, and even made claims of higher volt/amp rated chargers damaging their devices (however anecdotal).
In any case, from the responses on this thread, it appears that any charger that doesn't have HTC's proprietary connector that they used for the Flyer, will charge the tablet very slowly. I just plugged my Flyer into a microUSB charger the other day (just got back from a trip, and my stock charger was still packed), and it charged extremely slowly. It was slower than I remembered it being. It was plugged in for maybe 4 hours, and only increased the charge by 10 or 15%.
PowerFlask Volts and Amps
Thanks for the feedback, much appreciated.
I ran a quick test and connected the Flyer to the battery pack.
The flyer charged from 76% to 84% in 30 minutes . I realise that such a short charge isn't a proper test but it looks promising.
I used the 1amp port and will as you cautioned avoid the 2.5 amp port.
Maffs

[Q] 2A Charger for Evo 3D

Hi,
I was wondering if it will be OK to use a 2A & 5V with Evo 3D. Evo 3D dies after a while when it's connected to HDMI Dock. Their is not enough current to keep it alive. And with a 2A 5V charger will also charge my Samsung Galaxy Tab 10.1.
Thanks.
donniezazen said:
Hi,
I was wondering if it will be OK to use a 2A & 5V with Evo 3D. Evo 3D dies after a while when it's connected to HDMI Dock. Their is not enough current to keep it alive. And with a 2A 5V charger will also charge my Samsung Galaxy Tab 10.1.
Thanks.
Click to expand...
Click to collapse
If I remember my physics correctly, you should be OK because the phone will only use the amperage that it needs.
coal686 said:
If I remember my physics correctly, you should be OK because the phone will only use the amperage that it needs.
Click to expand...
Click to collapse
That's what I have heard. Also it might heat a little bit.
quiet simply yes
EVOLICIOUS said:
quiet simply yes
Click to expand...
Click to collapse
I a little worried about it might heat and might adversely affect the life of phone. As long as it's not too bad, I am fine with it. I plan to leave my phone on dock, so, I will be connected to 2A charger with extended period of time but then their should be some safe guard implemented by HTC to handle such scenarios.
Thanks.
donniezazen said:
I a little worried about it might heat and might adversely affect the life of phone. As long as it's not too bad, I am fine with it. I plan to leave my phone on dock, so, I will be connected to 2A charger with extended period of time but then their should be some safe guard implemented by HTC to handle such scenarios.
Thanks.
Click to expand...
Click to collapse
I've actually heard from friends that their phones got hot when they did not provide enough amps. Using a 500mA charger for the 3d got their phone piping hot for some reason.
coal686 said:
I've actually heard from friends that their phones got hot when they did not provide enough amps. Using a 500mA charger for the 3d got their phone piping hot for some reason.
Click to expand...
Click to collapse
I am not sure I understand you. You mean to say even an extra 500mA, that is 1.5A total, would get phone hot. HTC 3D requires at least 1A of current, so, it won't charge with a 500mA charger.
Comments Withdrawn
donniezazen said:
I am not sure I understand you. You mean to say even an extra 500mA, that is 1.5A total, would get phone hot. HTC 3D requires at least 1A of current, so, it won't charge with a 500mA charger.
Click to expand...
Click to collapse
What zcink said. They were using old low amp chargers.
Sent from my PG86100 using Tapatalk 2
I used to charge my 3D with the stock charger but it gets a little hot, now I use a old blackberry charger and it never gets hot again, charge faster and I have a long cable now lol
Sent from my 3XD using Tapatalk 2
I use my Usb 3.0 port to charge, it is higher amps then the stock charger and works great. No heat issues and charges fast. The Usb on my car radio on the other hand is .5 amp and does heat it up.
Sounds good.
Sent from my GT-P7510 using Tapatalk 2
Will A Higher Amperage Make It Charge Faster Because I Noticed When I Charge My Phone With My iPad Charger It Gets Done Quicker?
HTC 3D requires at least 1A of current, so, it won't charge with a 500mA charger.
Click to expand...
Click to collapse
Not true. The phone will charge with any amperage. I have an old car charger that only puts out 200mA, and it charges just fine. Obviously it doesn't charge very fast, but it's enough to keep the phone topped off when I need it.
Will A Higher Amperage Make It Charge Faster Because I Noticed When I Charge My Phone With My iPad Charger It Gets Done Quicker?
Click to expand...
Click to collapse
No, and as stated above, it will not hurt the phone either. The Evo will draw at max around 1 amp. You can use a 2 amp charger, but the phone will not charge any faster, as it will only draw 1 amp. I use my tablet charger once in a while, which is also 2 amps, and can confirm the phone is only drawing a little over 1 amp from it.
When I connect phone with TV through HDMI dock. Phone draws more power than 1A charger supplies. Will 2A charger be able to provide that extra charge, so, phone wouldn't die or depleted of power?
I don't mind heating as long as it's not frying phone chip anytime soon.
Sent from my PG86100 using Tapatalk 2
Comments Withdrawn
If the charger is rated higher than one amp you should be alright, but I wouldn't recommend using one rated lower than 1 amp (or 500mA for usb/car chargers)
I just fried a charger not too long ago because I plugged my touchpad into it and it was only rated at half what that draws.

[Q] GS3 Charger

So I will get the regular charger for gs3 that comes with the phone (tomorrow when i get the phone). but i also have the HP Touchpad charger which gives output of 2.0A. I was wondering if I charge my phone with the HP charger will it actually charge is faster then the regular gs3 charger? the reason i ask is cause in other threads ppl have mentioned that it only charges faster with non - stock roms like aokp or aosp roms. please lemme know if this will work. thanks
It should I got one of those and it does charge faster I got the bb one tho
Sent from my SGH-T999 using Tapatalk 2
I've used my BlackBerry PlayBook charger on mine and it doesn't charge any faster. That charger is 1.8amp.
It will not charge faster. The phone only draws as much amps as its allowed to. Whether you use a 1 amp charger or a 2 amp charger, it'll only charge at the phones own rate
Sent from my SPH-L710 using xda app-developers app
then theres basically no advantage to using some other charger?
I don't believe so. The phone only draws what it needs.
Sent from my SPH-L710 using xda app-developers app
A lot of chargers will be rated less than the stock charger. Especially cheap car chargers. In that case the phone can only draw at the charger rating.
alirulzz said:
then theres basically no advantage to using some other charger?
Click to expand...
Click to collapse
Unless you run a custom kernel that allows for higher charge rates.
Sent from my ADR6400L using Tapatalk 2
I have a dual car/wall charger and I noticed when plugged in the car it charges faster.
Sent from my vivow using Tapatalk 2
The values listed on the charger is the max output it can provide. If the setting on the phone or the hardware is set up to only pull 1A, then it will always pull that unless that is more than what the charger can provide.
That being said, you should be able to take the battery out and charge it faster separate from the phone. I've always read, though, that charging a battery faster ( i.e. turning up the current) will/may reduce the life of the battery
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
the only way I have found to charge phone's faster is to power it off and then charge...takes about half the time to fully charge
none of the 2 amp chargers make it any quicker
alirulzz said:
So I will get the regular charger for gs3 that comes with the phone (tomorrow when i get the phone). but i also have the HP Touchpad charger which gives output of 2.0A. I was wondering if I charge my phone with the HP charger will it actually charge is faster then the regular gs3 charger? the reason i ask is cause in other threads ppl have mentioned that it only charges faster with non - stock roms like aokp or aosp roms. please lemme know if this will work. thanks
Click to expand...
Click to collapse
I have a Touchpad charger and it can be used, though I noticed that the phone got hotter than normal, IMO. The phone comes with a 1.0A combo wall charger with USB cable. Interestingly the Samsung stand and battery charger that comes with the spare battery comes with a .7A charger but the charging unit itself is 500mA/1A on the input with output at only 4.2v @ 450/900mA.

No rapid charge using non-HTC chargers?

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
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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.
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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.
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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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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.
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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.
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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)

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