Develop Bugs

This phone takes FOREVER to charge.

Seriously who thought it would be OK to sell a phone that takes nearly 6 hours to charge on USB and nearly 3 on the wall?
Its not even like it gets to 80% after an hour then trickles.
Rant over.

eskimochaos said:
Seriously who thought it would be OK to sell a phone that takes nearly 6 hours to charge on USB and nearly 3 on the wall?
Its not even like it gets to 80% after an hour then trickles.
Rant over.
Click to expand...
Click to collapse
its a big battery.....

new?
only the first several cycles then it would be faster

+1
Had mine from day one, still takes ages to charge, my LG o2x took an hour from dead
Sent from my HTC One X using Tapatalk 2

Hello,
phil112345 said:
its a big battery.....
Click to expand...
Click to collapse
i would have said it's a small charger ...
It is a 1A charger, but Battery Widget Pro evaluates charge at 650 mA ( = 0.65 A ) for me.
Charging a 1800 mAh Li-Ion at 1.8 A will last one hour.
Charging a 1800 mAh Li-Ion at 0.6 A ( 1.8 / 3 ) will last 3 hours.
It is just as simple as this for Li-Ion and Li-Po batteries.
I can even say that your USB charge at approximately 300 mA even not knowing your specs ...
I think we can use a 2A charger without destroying the battery,
but i think HTC deliberately "lowered" the charge rate ...
Maybe someone here already tested a 2A charger and see a difference ?

eskimochaos said:
Any technical backing to that statement or is it bro-science?
Click to expand...
Click to collapse
Hahahahahahhaa bro-science, i laught soo much with this!!!
---About thw thread---
My phone takes about 3hours, i dont care too much because i put it to charge when i go to sleep.
Sent from my HTC One X using XDA

eskimochaos said:
Seriously who thought it would be OK to sell a phone that takes nearly 6 hours to charge on USB and nearly 3 on the wall?
Its not even like it gets to 80% after an hour then trickles.
Rant over.
Click to expand...
Click to collapse
are you using the usb cable that came with HOX ?

vladnosferatu said:
are you using the usb cable that came with HOX ?
Click to expand...
Click to collapse
Yes, and what would that have to do with anything?

eskimochaos said:
Yes, and what would that have to do with anything?
Click to expand...
Click to collapse
because i have some other usb cables, that are slower charging
dont ask me why.... dont know.. but with some usb cables are very slow

So glad i'm not the only one
Mine takes forever to charge too

DanRZ;26479283
I think we can use a 2A charger without destroying the battery said:
Phone is limited to 1a for charging so using a 2a won't make a difference.
Sent from my HTC One X using xda premium
Click to expand...
Click to collapse

phil112345 said:
its a big battery.....
Click to expand...
Click to collapse
My galaxy nexus, with it's 1750 Mah battery, charges from 0 to 100% in 1h and a half.

Get a charger with more amps yo.
Sent from my LG-P920 using xda premium

Would you rather have it charged more quickly (like 1h or 1.5h) generating more heat and thus decreasing your battery life on phone which doesn't sport a removable battery?
I'm glad it's not that fast, the battery will last longer this way. If you don't care about that, get a "faster" charger and destroy your battery more quickly than the rest of use

treebill said:
Phone is limited to 1a for charging so using a 2a won't make a difference.
Click to expand...
Click to collapse
Yes, i'm sure of that limitation too, but why does it charge in only 3 hours.
Looks like it is limited to 0.6A or my charger only charge at 0.6A
and doesn't have a good efficiency.
The two main possibilities are a bad battery which takes more time to charge
or a low charge rate from the charger.
While i suppose my battery is new and in good shape, it can be only due to charger or "software" limitation.
So for me the limitation is more like 600 mA and not 1A ...

Heard it all now... battery charge though put it on charge while you sleep (PROBLEM SOLVED)

LaneyEFC said:
Heard it all now... battery charge though put it on charge while you sleep (PROBLEM SOLVED)
Click to expand...
Click to collapse
Perhaps your not a heavy power user in a corporate environment who needs to charge the phone a decent amount in the airport, during the day, and so forth. HTC created a bigger problem by not allowing you to replace the battery.
Not hating, just saying, bro.

http://en.wikipedia.org/wiki/Lithium-ion_polymer_battery
Learn about batteries before complaining about a phone you bought using a battery you don't understand. Lipo is not a Duracell and it needs to be used and charged properly.

DanRZ said:
Yes, i'm sure of that limitation too, but why does it charge in only 3 hours.
Looks like it is limited to 0.6A or my charger only charge at 0.6A
and doesn't have a good efficiency.
The two main possibilities are a bad battery which takes more time to charge
or a low charge rate from the charger.
While i suppose my battery is new and in good shape, it can be only due to charger or "software" limitation.
So for me the limitation is more like 600 mA and not 1A ...
Click to expand...
Click to collapse
Seems more like you have a defective charger, or at least not one rated at 1A. Try a different one?
Even with a 2A charger I have, phone does take a dreadfully long time to charge. My Galaxy Nexus with the extended battery charges to full in about 1/3 the time.
LaneyEFC said:
Heard it all now... battery charge though put it on charge while you sleep (PROBLEM SOLVED)
Click to expand...
Click to collapse
Problem solved for you, who apparently doesn't use his phone as much as others, but not for those of us with a lot of screen on time during the day. LOL.

crsnwby said:
http://en.wikipedia.org/wiki/Lithium-ion_polymer_battery
Learn about batteries before complaining about a phone you bought using a battery you don't understand. Lipo is not a Duracell and it needs to be used and charged properly.
Click to expand...
Click to collapse
Has nothing to do with how slow the HOX charges. The iPhone, blackberry, Macbooks, hell my old T61p ThinkPad all charge faster.

Is it safe to use the Samsung GT 10.1 charging bring with the E4GT?

Trying to reduce clutter and use less outlets on my desk at home, I have a GT 10.1 and the E4GT and was wondering if it was safe to use the brick from the 10.1 with my micro usb charging cable for the E4GT.
I know they have different amps, the GT is rated higher, so it should charge the E4GT faster. Just not sure if this is safe.
I know for Blackberry's you can buy the rapid playbook charger and use it on the phones for a faster charge. Now that I think about it, I have used that Playbook quick charger with my E4GT. It works fine but I just hope I am not damaging my battery.
Thanks

Raistlin1 said:
Trying to reduce clutter and use less outlets on my desk at home, I have a GT 10.1 and the E4GT and was wondering if it was safe to use the brick from the 10.1 with my micro usb charging cable for the E4GT.
I know they have different amps, the GT is rated higher, so it should charge the E4GT faster. Just not sure if this is safe.
I know for Blackberry's you can buy the rapid playbook charger and use it on the phones for a faster charge. Now that I think about it, I have used that Playbook quick charger with my E4GT. It works fine but I just hope I am not damaging my battery.
Thanks
Click to expand...
Click to collapse
Well, you can charge it faster but i will over time reduce the battery life. coming from an electrical back round, The best thing for the battery is bring it up on a slow charge. Lessens the chance of burning/shorting out a cell. L-Ion batteries are great for not having a memory like Ni-Cad or Ni-MH. So i frequently throw my phone on the stock charger a few times thru out the day. I would recommend you stick with your stock charger as it was ment for that battery. hope this helps.

g_ding84 said:
Well, you can charge it faster but i will over time reduce the battery life. coming from an electrical back round, The best thing for the battery is bring it up on a slow charge. Lessens the chance of burning/shorting out a cell. L-Ion batteries are great for not having a memory like Ni-Cad or Ni-MH. So i frequently throw my phone on the stock charger a few times thru out the day. I would recommend you stick with your stock charger as it was ment for that battery. hope this helps.
Click to expand...
Click to collapse
Thanks, I did not realize that a fast charge can harm the lithium batteries. On a side note, lithium batteries can only be charged a certain amount of times correct? So if you charge your battery say four times a day, you have used up four charge times/cycles?
Thanks

A sprint tech told me that our phones have a built-in safety, and will not engage in charging the battery or damage it in any way if the amperage is incompatible on the charger.
Beware: this information came from a sprint rep over the phone, and I wouldn't even begin to know how to verify it.

Yes they are limited to certain amount of times they can be charged. I'd have to look it up again why tho.
Sent from my SPH-D710 using xda app-developers app

g_ding84 said:
Yes they are limited to certain amount of times they can be charged. I'd have to look it up again why tho.
Sent from my SPH-D710 using xda app-developers app
Click to expand...
Click to collapse
No need to look up the reason, just wanted to make sure that I was correct in thinking that. I try to charge my phone only once per day and at night, if I have to charge it up during the day I will but I try not to keep pulling it on and off of the charger.
Thanks

OK. Yeah there are a lot of tweaks out there. Like if u use voltage control, use agat or sleshepic's TW ICS kernels and under volt and use conservative govener. Really helps battery life. Also depends how you use it
Sent from my SPH-D710 using xda app-developers app

Is it ok to leave device connected to computer at 100% battery?

Hi is it OK to leave our device connected to the computer at 100% battery level? I develop android apps and there are times I need to debug and have my device connected for hours for debugging. At 100% level, I noticed the device is not heating up and I assume this wouldn't damage the li-ion battery or would it?
Does this device have an ic chip to handle overcharging ?
Sent from my Nexus 7 using xda app-developers app

geocine said:
Hi is it OK to leave our device connected to the computer at 100% battery level? I develop android apps and there are times I need to debug and have my device connected for hours for debugging. At 100% level, I noticed the device is not heating up and I assume this wouldn't damage the li-ion battery or would it?
Does this device have an ic chip to handle overcharging ?
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
It's not good for the battery. Lithium batteries don't like to be fully charged all the time.
I don't know about chips, but it must have overcharge protection, otherwise the battery would go up in flames.

geocine said:
Hi is it OK to leave our device connected to the computer at 100% battery level? I develop android apps and there are times I need to debug and have my device connected for hours for debugging. At 100% level, I noticed the device is not heating up and I assume this wouldn't damage the li-ion battery or would it?
Does this device have an ic chip to handle overcharging ?
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
Lithium batteries does have overcharge protection.
Sent from my Nexus 7 (2013) using Tapatalk 4

I've had no issues doing it with a few devices and my battery has never had issues, I always plug my devices in and let them charge overnight whether they need it or not
Sent from my HTC One using Tapatalk 4

From what I have read, there isn't a need for concern. The device automatically cuts off charging at 99-100% and there is overcharge protection. Unless I am missing something.

Great now i can sleep at night without worrying my phone getting overcharged

LoVeRice said:
Great now i can sleep at night with worrying my phone getting overcharged
Click to expand...
Click to collapse
I've noticed that (at least when it's close to being full) that the kernel watches it like a hawk. It seems to be checking on things every 20 seconds according to the dmesg output. It's reporting the voltage, temp and calculated charge level each time around.

Muikkuman said:
Lithium batteries does have overcharge protection.
Sent from my Nexus 7 (2013) using Tapatalk 4
Click to expand...
Click to collapse
I am really curious if it does really have because I have an li-ion battery on my Samsung galaxy ace and I have been doing the same thing. But now the battery performance is a lot lower compared to when I first had it. What seems to be the reason? Is it true for all lo-ion batteries?

geocine said:
I am really curious if it does really have because I have an li-ion battery on my Samsung galaxy ace and I have been doing the same thing. But now the battery performance is a lot lower compared to when I first had it. What seems to be the reason? Is it true for all lo-ion batteries?
Click to expand...
Click to collapse
Has been said before, but here we go again: Things that are BAD for your LiIon/LiPoly battery:
-storing your battery at full charge (which is essentially what you are doing)
-running down the battery to "0%", i.e. < 3.40 V repeatedly
-heat
-very fast discharges (not possible with a smartphone)
-very fast charges (again not possible)
So, if you want to get the best life out of your battery, it is definitely NOT advisable to leave it connected to the charger at all times. It will (or should) not get overcharged, but simply being at full charge for a prolonged time damages the cell more than being used in a normal fashion.
And yes, all LiIon batteries in phones have overcharge protection, because LiIon batteries burst into flames at just about 4.55 V (which is obviously very close to the full charge voltage) and companies want to avoid that in general.

I'm just going to leave this here.
The HTC one has a hardware circuit, as well as software on a PMIC (Power Management Integrated Circuit -- a tiny chip that acts as a micro processor) that shunts current away from the mainboard and battery once the battery has been fully charged. You could leave it charging for weeks at a time and have little to no effect on the battery or the device.
Most consumer electronic devices have the same protection, and have for years.
Click to expand...
Click to collapse
Taken from: http://forums.androidcentral.com/htc-one/288313-safe-charge-battery-overnight.html#post2859433

Valynor said:
Has been said before, but here we go again: Things that are BAD for your LiIon/LiPoly battery:
-storing your battery at full charge (which is essentially what you are doing)
-running down the battery to "0%", i.e. < 3.40 V repeatedly
-heat
-very fast discharges (not possible with a smartphone)
-very fast charges (again not possible)
So, if you want to get the best life out of your battery, it is definitely NOT advisable to leave it connected to the charger at all times. It will (or should) not get overcharged, but simply being at full charge for a prolonged time damages the cell more than being used in a normal fashion.
And yes, all LiIon batteries in phones have overcharge protection, because LiIon batteries burst into flames at just about 4.55 V (which is obviously very close to the full charge voltage) and companies want to avoid that in general.
Click to expand...
Click to collapse
That is a very clear explanation. Is it possible to disable charging when connected to computer (programatically)?
It is really a pain to disconnect it every time I hook it up on a computer for debugging and it wouldn't even guarantee to discharge when I hook it up and disconnect when not debugging since I do it frequently. When debugging, everytime I change and compile code I need to hook it up to the computer. I am debugging games and sometimes smali files so an emulator is not really an option.

geocine said:
That is a very clear explanation. Is it possible to disable charging when connected to computer (programatically)?
It is really a pain to disconnect it every time I hook it up on a computer for debugging and it wouldn't even guarantee to discharge when I hook it up and disconnect when not debugging since I do it frequently. When debugging, everytime I change and compile code I need to hook it up to the computer. I am debugging games and sometimes smali files so an emulator is not really an option.
Click to expand...
Click to collapse
I guess it would be possible by modifying the Android kernel.
The best practical advice is probably: Buy only smartphones with exchangeable batteries. :cyclops:

Valynor said:
Has been said before, but here we go again: Things that are BAD for your LiIon/LiPoly battery:
-storing your battery at full charge (which is essentially what you are doing)
-running down the battery to "0%", i.e. < 3.40 V repeatedly
-heat
-very fast discharges (not possible with a smartphone)
-very fast charges (again not possible)
So, if you want to get the best life out of your battery, it is definitely NOT advisable to leave it connected to the charger at all times. It will (or should) not get overcharged, but simply being at full charge for a prolonged time damages the cell more than being used in a normal fashion.
And yes, all LiIon batteries in phones have overcharge protection, because LiIon batteries burst into flames at just about 4.55 V (which is obviously very close to the full charge voltage) and companies want to avoid that in general.
Click to expand...
Click to collapse
Have we gone back to 1985?
Where's my tinfoilhat?
Aliens n stuff!

kitch9 said:
Have we gone back to 1985?
Where's my tinfoilhat?
Aliens n stuff!
Click to expand...
Click to collapse
If you don't know much about LiIon battery chemistry, perhaps you want to research a little bit?

Valynor said:
If you don't know much about LiIon battery chemistry, perhaps you want to research a little bit?
Click to expand...
Click to collapse
Facepalm.gif.
Op said he connects his machine for HOURS. If he said YEARS I'd agree with you, all li-ion modern batteries have circuits which moderate their charge cycle to condition the battery when plugged in. When your device is plugged in it doesn't actually mean the battery is charging if it doesn't need it then it won't be. You might want to research that.

kitch9 said:
Facepalm.gif.
Op said he connects his machine for HOURS. If he said YEARS I'd agree with you, all li-ion modern batteries have circuits which moderate their charge cycle to condition the battery when plugged in. When your device is plugged in it doesn't actually mean the battery is charging if it doesn't need it then it won't be. You might want to research that.
Click to expand...
Click to collapse
Of course its not charging if its full, otherwise it would go up in flames. But Valynor is right, storing lithium batteries fully charged is not good for the battery.

poisike said:
Of course its not charging if its full, otherwise it would go up in flames. But Valynor is right, storing lithium batteries fully charged is not good for the battery.
Click to expand...
Click to collapse
Which is awesome, but that was not what the OP was asking. All Li-ion batteries have overcharge/discharge protection which means the OP can do as he has asked without worrying.
Banging on about how he might die in a fire is a little..... Hyperbolic?

Using the supplied charger for everyday charging?

So the stock charger that comes with the phone is a quick charger. Would using this charger every night to charge my phone kill the overall lifespan of the battery? Is it bad for the battery?

I don't think there's enough data to reliably say whether it's significantly decreasing the life, but fast charging does produce more heat which will theoretically degrade your phone quicker. I personally use a normal wall plug overnight and keep the quick charger by my desk in case I need a top-up during the day.
Here's some light reading:
http://pocketnow.com/2014/12/25/speed-chargers
https://www.reddit.com/r/nexus5x/comments/42xq9p/fast_charging_bad_for_battery_in_long_run/czegbzm

noahjk said:
I don't think there's enough data to reliably say whether it's significantly decreasing the life, but fast charging does produce more heat which will theoretically degrade your phone quicker. I personally use a normal wall plug overnight and keep the quick charger by my desk in case I need a top-up during the day.
Here's some light reading:
http://pocketnow.com/2014/12/25/speed-chargers
https://www.reddit.com/r/nexus5x/comments/42xq9p/fast_charging_bad_for_battery_in_long_run/czegbzm
Click to expand...
Click to collapse
Quadrider10 said:
So the stock charger that comes with the phone is a quick charger. Would using this charger every night to charge my phone kill the overall lifespan of the battery? Is it bad for the battery?
Click to expand...
Click to collapse
QC 3.0 significantly improves charging efficiency and heat reduction. Please don't confuse fast chargers with quick charge technology.
http://www.androidauthority.com/quick-charge-3-0-explained-643053/

I've read all that and still can't really decide if it's OK to use everytime

Quadrider10 said:
I've read all that and still can't really decide if it's OK to use everytime
Click to expand...
Click to collapse
Of course it's fine to use it everyday, manufacturers wouldn't ship a charger with a phone that you shouldn't use.

geoff5093 said:
Of course it's fine to use it everyday, manufacturers wouldn't ship a charger with a phone that you shouldn't use.
Click to expand...
Click to collapse
Pardon my cynicism but manufacturers get paid to sell phones. Slow degradation due to heat might have you buying a new one 20% sooner than if you slow charged. Not saying this is the case, but you have to look at the flip side of your argument too.

demi9od said:
Pardon my cynicism but manufacturers get paid to sell phones. Slow degradation due to heat might have you buying a new one 20% sooner than if you slow charged. Not saying this is the case, but you have to look at the flip side of your argument too.
Click to expand...
Click to collapse
It would be a fine balance between that and having to deal with warranty issues from faulty chargers.
Sent from my SM-G935V using Tapatalk

My moto x pure battery is still in good condition after using qc2.0 for a year. I'd say it's all gonna be fine.

I plan to have this phone for a long time. 3-4 years. That's why I've been a little worried about using it.

Try testing it for yourself.
I haven't used any charger except the QC 3 that came with the phone yet, but I have noticed it gets pretty warm.
Plenty apps available to monitor your battery temp. (Link in my sig )
Heat is definitely bad for batteries.
As far as charge rate it's hard to say. Fast charging a car or marine battery is significantly degrading it. Not sure about the batteries used in modern tech. I would assume they can handle fast charging well given the only charger included is a rapid charger.

Use the QC3 charger for everyday charging. It will be fine. Discharging the battery is going to hurt more.
If you want to maximize it:
discharge no lower than around 40-50% or so.
charge it higher than 90%.
Have fun using your device.

demi9od said:
Pardon my cynicism but manufacturers get paid to sell phones. Slow degradation due to heat might have you buying a new one 20% sooner than if you slow charged. Not saying this is the case, but you have to look at the flip side of your argument too.
Click to expand...
Click to collapse
Manufacturers wouldn't have customers buying another phone of theirs if their phones don't last long.
Sent from my HTC6545LVW using Tapatalk

Phone abruptly dies under 20% battery

Phone totally goes black/dies when battery is 21% down to 10%. does this just mean the battery I have is bad? What replacement battery is best? I've read Anker makes a good set with charger. Thanks.

Samsung SDI batteries are the only batteries I've known to do this. When screen goes black, that should be a shutdown. Do you plug in your charger at that time? Mine actually actually showed 0%.
It's inconvenient for a battery to shutdown unexpectedly, while showing capacity remaining. I always replace Samsung OEM batteries with another brand. I found one that I liked so l went to Amazon and bought a second plus external charger from same brand. If looking at another alternative, just search MPJ and read the reviews. The battery and wall charger were on sale last week, maybe still.
If you're considering upgrading to sealed battery in unibody phone, you should consider the care required for such a phone to get battery to last. Sealed batteries are actually very similar in capability and ratings; no leap in tech but apparent shortcoming evident in Note7 embarrassment. Fast charging produces heat and steals life from battery's endurance down the road. Studies have shown since lithium batteries have no memory that you're actually prolonging the battery by slow charging without load or minimum load and bump charging rather than cycling battery to near 0% then back to 100%. Manufacturers don't tell you that because they prefer you wear your battery down in less than a year's time and consider another phone purchase.
Maybe Samsung would be better off today if consumers were more aware of how to prolong lithium batteries?
If you want your battery to last two years, bump charge it after 25% used as much as possible; it shouldn't even matter if you bump charge it 3x per day. Avoid fast charging and heat cycles. IOW, try not to use it while charging; the cycles should be short anyway.
Or, if you prefer to abuse a removable battery like the Note 4 and care less, pay about $15 and just replace the battery every year. 500 full cycles is all these batteries are currently rated for due to increased degradation with abuse. Mini cycles allows more of those cycles without degradation but you'll still have capacity when you need it to last a long day without charging.
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
Sent from my SM-N910P using Tapatalk

Wow thanks for all the information. What does bump charge mean exactly? Now my battery won't charge passed 90% either. A different one is on the way.

Toyeboy said:
Wow thanks for all the information. What does bump charge mean exactly? Now my battery won't charge passed 90% either. A different one is on the way.
Click to expand...
Click to collapse
Try this, if you are rooted and have recovery wipe dalvik cache and cache. Power off phone and pull battery for like 5-10min. Hold the power button (with battery out) for like 1-2min. After letting battery sit out for 5-10min reboot and see what happens. If same instances occur. Your battery is dead just purchase a new one! Anker recommended!

Toyeboy said:
Wow thanks for all the information. What does bump charge mean exactly? Now my battery won't charge passed 90% either. A different one is on the way.
Click to expand...
Click to collapse
You're welcome.
Bump charging is partially charging before battery gets low. An example would be running the battery down 25% and charging without overcharging it.
Sent from my SM-N910P using Tapatalk

Had the same issue, bought a new Anker and issues resolved, the stock Samsung sucks!

I'm just glad there's a way to replace it that'll mean this phone can last a long time if I'm careful with it.

Yeah it must be these batteries. My mom has the Note 4 as well and hers does the same thing. As does mine

g355150 said:
Yeah it must be these batteries. My mom has the Note 4 as well and hers does the same thing. As does mine
Click to expand...
Click to collapse
Yes the stock Samsung batteries are horrible. They don't last very long then they start misrepresenting the battery statistics to the OS so you get the shutdowns at 20 or so %. I switched to a twenty$ Anker I found on Amazon over 6 months ago and never had the issue occur again. Even thy sprint techs will tell you if you ask them outright!
sent from my droid