HTC One Charging Speed.

Yeah, I'm a new owner and facing the same problem - just over 7 hours to fully charge from 3-100% : (
Any idea why? Is it a hardware defect?
 
This is definitely not normal. You may in fact have a defect in your charger, or possibly the phone.
Charging should take about 2hrs from 0 to 80%, and approximately 1 more hour to get from 80 to 100%.
The battery may need a few days to "break in", but if you don't see a drastic improvement in the next few days, return it for a new One before the time to do so runs out.


Sent from my HTC One using Android Central Forums
 
Is there any way to turn power saver on whilst NOT showing the power saver icon in the notification bar?

Yes! Long press the button in the notification area and force stop it. It will be off until you turn it back on or reboot your phone.
 
The other important variable to determine is the amperage of the charger itself. The One's charger is 1 amp, same as my previous phone, so I can use the old chargers. However, if the amperage is significantly lower, it will take longer to charge.
 
If you look at Power under Settings and it says USB Charging, it takes longer.. but if it's AC, it's much faster... But one thing I'm confused is I don't know exactly how I can get AC charging.. So far, I have to use an USB extension cord in order to show "AC Charging" even though I'm using the same usb car/wall charger (except the original one from HTC)... This is happening the same if I use the 2amp charger... Really weird
 
I would just like to say I purchased the htc one the black version a week ago. I absolutely love this phone. I had previously had the iphone 4s. The only gripe is that it takes about 5 to 7 hours to charge. After reading the forums it seems I am not the only one with this problem. I also purchased my girlfriend the same phone and hers takes just as long to charge. Will there be a software update soon. It sucks. I use the phone a lot whether is gaming web browsing or talking text etc. The battery seems to last a long time which is great but even with a charger in my car, at the office, and at home it is never charged even though its always on the charger! I just plugged my iphone 4s in and its 50percent charged in an hour or so. My htc has not even gained 10percent. what gives. I doubt its a bad phone as my girlfriends phone is the same and all over the internet people have the same problem. I can use all the apps I want to save battery power but what can I do to charge faster. THIS sucks. Not to say though that I love the phone and everything about it!
 
Its by design to ensure battery longevity. I use a charger that outputs about 5.0v=800mah. It takes about 3-4 hours to charges to full. But I also can't use the device while its charging either because the device doesnt really respond well when connected to it. But its worth it for the time it saves. The Anker 3000 powerpack will charge the device pretty quickly compared to usb or the HTC provided wall charger/usb plug.
 
Hi guys! On the first week of charging, it would take me about 4-4.5 hours to fully charge (which is its normal charge time). Not sure why some of you are taking way much more than that. 5-7 hours or more would just be ridiculous. What I've done basically is the following which have helped the battery charge a whole lot faster. It only takes me about 2.5 - 3 hours now which is pretty siginificant.

1. I turn off the WI-FI, Data, GPS and location settings and make sure there are no heavy processes running. It is common knowledge that it is best not to use a device while it is charging as using it would only eat up more power than it is actually absorbing so at least turn off the running apps that you know are extreme "battery hoggers" e.g. WIFI connectivity and GPS/Location Services). This is especially true for mobile phones.

2. Alternatively, you can also turn off the phone while you are charging it as this will definitely make sure that nothing is running while the charging is in effect.

3. I charge the phone doing "full cycle charge" (phone should be below 20% before I charge it and let it go all the way up to 100%. (It is consistently advised that full cycle charges be done at least once a month.)

Regarding the idea of leaving the phone charging overnight, The safety and reliability (as to whether it will not damage your battery and/pr charger) of that would still remain questionable.

I basically followed these practices after the first 2 times I charged the phone since buying it. Since then, I've noticed that the charging time has improved. Like I said, it now takes me about 2.5 - 3 hours to fully charge which is pretty acceptable. The time for the phone to get to 80% is fast. Once it reaches 80%, the charging slows down known as "trickle charge"

Trickle charging
From Wikipedia, the free encyclopedia


Trickle charging means charging a fully charged battery under no-load at a rate equal to its self-discharge rate, thus enabling the battery to remain at its fully charged level. A battery under continuous float voltage charging is said to be under float-charging.

For lead-acid batteries under no-load float charging (such as in SLI batteries), trickle charging is achieved naturally at the end-of-charge, when the lead-acid battery takes in a trickle charge to keep itself fully charged. The trickle charging then equals the energy expended by the lead-acid battery in splitting the water in the electrolyte into hydrogen and oxygen gases. Other battery technologies, such as the lithium-ion technology, are highly intolerant to over-charging, and cannot be float-charged without an external battery management system.


Also, on the HTC website, they advised to charge the phone at least 8 hours on the initial charge. I wasn't able to do this the first time I bought the phone but I did it on my second charge.

P.S. I hated the fact that the HTC One took way too long to charge. I almost traded my phone in for the GS4 but I took the chance of hanging on to it. I tried doing some sensible charging practices as I stated above and they worked. Nonetheless, hopefully, HTC will release software and firmware updates for the phone that will address this important issue.

HTC One running on stock T-Mobile ROM. No roots.... YET :D
 
in case it wasn't already stated... HTC for some reason doesn't support this:
Qualcomm

where as the S4 does as most phones that use the same qualcomm chip set.
 
Do you even have a Nexus 7? What he stated is correct. None of my chargers will charge my N7 except my ASUS N7 charger.

Now, I routinely use my MOTOACTV (wrist watch) charger to charge my S4, and a Blackberry charger to charge my HTC One, but does that mean I'm ruining my battery? Probably. Not all USB plugs output the same mAH

As an example, I have 2 plugs in my hand, both end's are microUSB. One of them is a Sierra Wireless charger for an AT&T hotspot, the other is a plug for a Blackberry 9300. The part that goes into the wall? One of them says "Output: 5.2v - 1.2A" and the other says "Output: 5V - 750mA"

Both will charge either of my phones.. one chargers slower, one chargers faster. Both are probably causing corrosion on the cells in my batteries quicker..I've read many white-paper's on lithium ion batteries, USB chargers and proper voltages, so trust me on this.

I ALWAYS RECOMMEND USING THE CHARGER THAT CAME WITH THE DEVICE.

Buy a generic sprint car/home charger from amazon it's 2 amps and works just fine on the nexus 7 and everything else that uses micro usb charging. All my devices use any charger available, if I plug my nexus 7 into a charger at work it will charge slower because it's 700ma but it WILL charge. There can't be just one dedicated charger for each thing because that just would be inefficient and companies know that people aren't electricians so they have to be made to not to break if plugged into different chargers. Anyways who would want to bring all their chargers with them for every single item instead of using what's available where they're at?
 
Buy a generic sprint car/home charger from amazon it's 2 amps and works just fine on the nexus 7 and everything else that uses micro usb charging. All my devices use any charger available, if I plug my nexus 7 into a charger at work it will charge slower because it's 700ma but it WILL charge. There can't be just one dedicated charger for each thing because that just would be inefficient and companies know that people aren't electricians so they have to be made to not to break if plugged into different chargers. Anyways who would want to bring all their chargers with them for every single item instead of using what's available where they're at?

Using my Nexus 7 charger with my Galaxy Nexus caused the usb flex cable to malfunction to where the phone would light up with the "charging" message even when unplugged. This caused the battery to drain very quickly. I verified that others had experienced the same issue (example). I think the Blackberry Playbook charger doesn't have the added thickness that the Nexus 7's does, so that may be a possibility.
 
Apparently, HTC has a bit of software in its stock ROMs that detect whether its own charger is being used. I have a battery pack that puts out either 1A or 2.1A, and my HTC One Max still detects it as USB... though my bedside cradle, plugged into a RCA dual-port wall charger shows as AC...

Would be nice if you could get the old "charge only" setting without having to root...