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Battery charging

Is it normal for the battery to take 8 hours to charge? My fascinate would take about 2, the battery on this thing drains faster than it charges! Love the phone, but is this normal?

mtmichaelson said:
Is it normal for the battery to take 8 hours to charge? My fascinate would take about 2, the battery on this thing drains faster than it charges! Love the phone, but is this normal?
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I've noticed it takes a while to charge mine too...granted, not 8 hours. But more like 3-4, which still sucks.

Ya, I plugged mine in 3 hours ago and am only at 38%.

Check the amps on the charger. USB from the computer is usually 500mA. The charger that comes with it, and most others are 1A. If you can find a 2A charger go for it. you can get one that was for the ipad that is 2A.

My experience so far is it charges approximately 20% per hour on a Motorola 850mA wall charger. Really slow compared to my OG Droid which seemed like it would fully charge from nearly dead in about 90 minutes on the same charger.

With the wall charger I can full charge from 20% in 1 to 2 hours. I never charge more than 2 hours to get full.
USB takes longer but not that much. 3hrs maybe.

Battery Charging Issues
I do fuel cell research and we deal with rechargeable batts. There is a drawback with rapid charging it generates heat and shortens lifespan. Be very careful with exceeding the manufact. specs on amperage. I have seen packs explode and burn when current overload protection fails.
My batt life is about 8 hrs after I deep discharged/charged for a few cycles and the charge time is quicker now. My Rev stays cool unlike my flashed Omnia 910.
I will not be too surprised if LG issues a software fix.
In the dawn of the smart-phone one has to accept short battery life and deal with ac chargers, I do on a daily basis. Only so much energy can be stored in a small form battery.

Through USB, it takes me about 8-9 hours to charge, and if thats if the alarm doesn't go off on it. Bad news if it does because its either stop charging, or draining because I wake up sometimes a couple hours after a certain alarm and only have 38% battery.
Even on the wall, it takes too long to charge. The time it takes me to charge sucks.

smokedkill said:
Through USB, it takes me about 8-9 hours to charge, and if thats if the alarm doesn't go off on it. Bad news if it does because its either stop charging, or draining because I wake up sometimes a couple hours after a certain alarm and only have 38% battery.
Even on the wall, it takes too long to charge. The time it takes me to charge sucks.
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Takes about 8hrs tops for me from dead on USB. However on the wall charger it only takes me 2 hours from dead. But i usually plug it in around 15% so really about 1hr 45min on average with the wall.
I tend to do the USB when i sleep though because as far as battery tech goes, the slower the charge the longer the battery will last(life wise, not throughout the day charge wise)

Just to give an update, my frustration level with my phone of 6 hour discharge and 8 hour charge times I decided to root, cwm, and decrapify it. Instant difference! After 1 day I put my phone on the charger at 8:30 last night with 1% battery left, it was fully charged by 10:30. Took it off of the charger at 10:30 last night and it is now 5:00 pm and I am still at 25%! This is with moderate usage, 4g on the whole time, Beautiful Widgets w/auto updating weather and location, Plume widget, Facebook widget, Youtube widget, and plenty of XDA scanning. If you haven't done so, I highly recommend the upgrades!
Sent from my Decrapified Revo using XDA Premium App

[Q] Any disadvantages of frequent charging?

Are there any disadvantages to having the phone plugged in a frequently as possible (e.g. charging over night, car charging, charging while at work)? I have been favoring 897 leaks over 9000 roms mainly because of battery life. I have been a fan of Apex roms and now that A11 is out I want to give it a try but I know I won't get the same battery life as Illuminance. Could I damage my Captivate from frequent charging?

Now i could be wrong, but frequently charging *may* reduce the life of the battery....i believe every batter has a certain amount of "charging cycles" it can have before the battery begins to lose charge quicker...again, i could be wrong..

True, batteries do have a certain account of charge cycles, but a charge cycle is a 100% drain and back up again.
So down to 50 then charge, 75 charge, 75 charge, is only 1 full cycle.
So whether you wait to charge til it's dead enough to not run the phone (it actually shuts off before true 0% to save the life of the battery) or you grab some spare juice when you can, your battery should have about the same life span.

studacris said:
True, batteries do have a certain account of charge cycles, but a charge cycle is a 100% drain and back up again.
So down to 50 then charge, 75 charge, 75 charge, is only 1 full cycle.
So whether you wait to charge til it's dread enough to not run the phone (shuts off before true 0% to save the life of the battery) or you grab some spare juice when you can, you're battery should have about the same life span.
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Ya this is true but I find I that I get much better battery life if I do a bump charge. Ive charged to 100% on the phone screen, turned off the phone, plugged the charger back in, and had it charge for another half hour until it hit 100%. So I dont know what it is about charging in that fashion that works for me but it really seems to help. I also am pretty good about cycling my battery 0-100 100-0 so that may help.

capocaccia said:
Ya this is true but I find I that I get much better battery life if I do a bump charge. Ive charged to 100% on the phone screen, turned off the phone, plugged the charger back in, and had it charge for another half hour until it hit 100%. So I dont know what it is about charging in that fashion that works for me but it really seems to help. I also am pretty good about cycling my battery 0-100 100-0 so that may help.
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bump charging will kill battery life long term..
Also, be careful with car chargers. Some of them are designed to charge faster which will also shorten the over all life of the battery.

Lithium batteries don't like to be drained fully. The best time to charge is 30-40%. Also lithium doesn't like the "fast" charge. Basically be easy on the drain/charge/level and it will last longer.
The 1/2 hour you're talking about is because the last 5-10% takes the longest. You can actually charge from ~40%-80%+ very shortly due to the way Lithium works.

As I said above, the phone shuts off before the battery reaches 0%. You notice it still has enough power to run the charging animations even though its too dead to boot.
the phone also stops charging at 100% let drain to 95 and back up, to prevent overcharging.
both are to save the lifespan of the battery.

Discharging below three volts will cause damage. Charging over four point two volts will cause damage. Charging at a greater rate than one C will cause damage. One C is equal to the capacity of the cell. Our stockers at 1500mAh should not be charged at a rate greater than one point five amps. I believe the stock charger outputs 800mAh, or point eight amps. Any damage to the cell will definitely shorten life. The more you use a battery the faster it will die, true with any type. Hope this helps someone.
Sent from my SAMSUNG-SGH-I897 using XDA App

I don't really see this as a matter of choice. My phone dies daily, so I have to charge it daily; I have to bite whatever happens with it anyway. If it helps, I got my phone on launch and have been using the same battery through my warranty replacements. My battery maxes out at roughly 15 hours of moderate use, 20 of light use.

frequent charging reduce battery life so it is better to charge when ur battery is left with 15% or below and charge it completly

prostar said:
Lithium batteries don't like to be drained fully. The best time to charge is 30-40%. Also lithium doesn't like the "fast" charge. Basically be easy on the drain/charge/level and it will last longer.
The 1/2 hour you're talking about is because the last 5-10% takes the longest. You can actually charge from ~40%-80%+ very shortly due to the way Lithium works.
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+1
This is very true of Lithium ion batteries. They like to be kept topped up constantly. Not letting it go to 0% consantly helps. This is very different from NiMH or NiCd, where the "memory" effect requires you to completely discharge the battery before next charge.
The best way is to just put the phone on charger whenever you are not using it - if ever - just plug it in and let it sit till you use next time.....

FFS how many times must I say it? THE BATTERY NEVER REACHES 0%!!!
There is ALWAYS some amount of charge even when the phone won't come on.

chappatti said:
+1
This is very true of Lithium ion batteries. They like to be kept topped up constantly. Not letting it go to 0% consantly helps. This is very different from NiMH or NiCd, where the "memory" effect requires you to completely discharge the battery before next charge.
The best way is to just put the phone on charger whenever you are not using it - if ever - just plug it in and let it sit till you use next time.....
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interesting topic and even more this reply. One new thing I leant on my learning curve, I must say.
Sent from my GT-I9000 using xda premium

studacris said:
FFS how many times must I say it? THE BATTERY NEVER REACHES 0%!!!
There is ALWAYS some amount of charge even when the phone won't come on.
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Very true. If you discharge a lithium cell below three volts, you run the risk of it catching fire or exploding.
Should've mentioned earlier that as the battery degrades, it loses capacity. This is what causes them to seem they're not "lasting as long" or "draining faster".
Sent from my SAMSUNG-SGH-I897 using XDA App

[Q] Htc one battery charging time

Htc one X full charge take around 3hours and it is painful.
Any ONE user can let us know how much time to do a full charge from 1-5% battery towards 100%？
I read somewhere in other thread is around 100 minutes. Better to confirm from different users.
Thanks!

No one can answer it?
Is it still 3 hours for a full charge?

mmx6688 said:
No one can answer it?
Is it still 3 hours for a full charge?
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its about the same but I haven't timed it. If you use the phone while charging then it will take a lot, lot longer.

recklesslife85 said:
its about the same but I haven't timed it. If you use the phone while charging then it will take a lot, lot longer.
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Thanks to let me know. Since I read some where it is only 100 minutes which make me wonder how it can be so fast.

3-4hours
my need up to 3-4 hours for a full charge
mmx6688 said:
No one can answer it?
Is it still 3 hours for a full charge?
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I've had my One for a few days and have noticed that it charges very slowly. 3-4 hours at least, longer if it's being used.
I charge it overnight while it's off so it hasn't been much of a problem for me.

GonzoDuke said:
I've had my One for a few days and have noticed that it charges very slowly. 3-4 hours at least, longer if it's being used.
I charge it overnight while it's off so it hasn't been much of a problem for me.
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I've noticed some very slow charging speeds, I put it on charge at midnight and at 6am it was at 84%!!. I was using an older HTC charger and not the one that came with the phone so it could be that but I doubt there's any different in output between them.
I've recently installed a battery app that tracks my usage and predicts when the battery will die. I took it off charge at 5:30pm tonight and it things it will flatten out at 6am tomorrow!.. that's only 12 hours on a full charge!.. I hope it's wrong but I'm already 10% down.. maybe it's no better than the HTC One X but I thought it was supposed to be better with a 2300mah battery

on mine from 5% to 96%is about hour half then hour half for the last 4%

mmx6688 said:
Htc one X full charge take around 3hours and it is painful.
Any ONE user can let us know how much time to do a full charge from 1-5% battery towards 100%？
I read somewhere in other thread is around 100 minutes. Better to confirm from different users.
Thanks!
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Anandtech tests report a battery charging time of 3:40 hours... so it is still painful.

I'd kill for 3hr charge time
darkgoon3r96 said:
Anandtech tests report a battery charging time of 3:40 hours... so it is still painful.
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I just got my HTC One a couple of days ago and noticed it was taking forever to charge. So today I timed it. I put it on charge 3 hours ago and it's gone up 30%. It's taking around 6 minutes for 1% of charge. This is using the wall charger, it's slower if I plug it into USB. I'm barely using it while it's plugged in.
My Battery Widget says voltage is 4262mV and temp is 34.6C
It's discharging on normal use at around 10% an hour with power saver on, which I guess I'm fine with, but not if it takes that long to charge up again.
Anyone have any ideas what might be causing it or what I can do about it? (It's my first Android phone and I don't know what the factors are with this).
Thanks.
HTC One on AT&T running Nova Launcher

Dont forget to turn off wifi, blue-tooth and gps, these will kill your battery.
apps like "juice defender" can automatically turn these off if you forget them.
Change from 4g/3g to 2g/gsm it saves battery life
Dont have your screen brightness set too high
use an app like "watchdog" to find high cpu using apps and system processes
also use "wakelock detector" to see if any apps are waking your phone up and wasting battery power when it should be asleep when you are not using it.
You can also turn on the built-in "power saver" from the drop-down list.
their are lots of threads on how to save battery power
John.

mmx6688 said:
No one can answer it?
Is it still 3 hours for a full charge?
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i dont bother how long i always put it on charge when am going to bed .. and morning i see green light

Mine around 5 hours plus from 5%. If I use it gaming or watching YouTube while charging, it even took longer to charge full.
Sent from my HTC One using xda app-developers app

How's my charging routine?

Is my charging routine bad? Here is my daily recharging
I let it charge over night. By the time I get home its normally in the 60% or so. So its left on all night until about 7am.
Then about half way through my day I charge it again while I'm at on my office. By then the phone is around 70%. So I let it charge to 100% then move on with my day.
So about 2 times a day I charge my phone. Is this healthy for the battery or does it not matter? I'm trying to get the most out of my battery. I seem to burn about 3-4% per hour with it just sitting on desk. Thanks for any advice!

cgardnervt said:
Is my charging routine bad? Here is my daily recharging
I let it charge over night. By the time I get home its normally in the 60% or so. So its left on all night until about 7am.
Then about half way through my day I charge it again while I'm at on my office. By then the phone is around 70%. So I let it charge to 100% then move on with my day.
So about 2 times a day I charge my phone. Is this healthy for the battery or does it not matter? I'm trying to get the most out of my battery. I seem to burn about 3-4% per hour with it just sitting on desk. Thanks for any advice!
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Nothing wrong with that
You are charging twice a day though so you will half as many days until your battery dies. Still a couple of years until it reaches 80% capacity though

MacHackz said:
Nothing wrong with that
You are charging twice a day though so you will half as many days until your battery dies. Still a couple of years until it reaches 80% capacity though
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I do not understand. Am I better off charging one time a day?

cgardnervt said:
I do not understand. Am I better off charging one time a day?
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Well yeah, but don't worry about it. You'll get another phone by the time you notice a battery drop on this phone.

Ideally you should be charging the phone when the battery gets down to around 40% and charge it to almost full, 97%-99%
Sent from my HTC One using Tapatalk 4 Beta

I've always felt that the less you charge s phone, the better in the end. And once its done charging, unplug it. So don't leave it charging over night. I have a timer set up so my phone charges only for a few hours a night then shuts off. When I wake up, my phone is usually in the 90%+ range
Sent from my HTC One using xda app-developers app

MacHackz said:
You are charging twice a day though so you will half as many days until your battery dies. Still a couple of years until it reaches 80% capacity though
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That's simply not true.

Lithium-Ion batteries are designed to be used - not to be used as permanent storage (thats why batteries in always-coorded laptops die faster)
(storing li-ion batteries should be done at 50% charge, never 100% nor 0%... )
Li-ion batteries should never get below 30% and likewise never hit 100% - The reason why, is because you are stressing the battery the most in the extreme ends... an almost empty cell is stressed when it has to deliver .. and an almost full cell has to charge at higher voltage to reach 100%.
So the best thing you could ever do is to charge from 30% to 95% if possible.
Regarding the amount of charges... with Li-ion you shouldn't think about the AMOUNT of charges, but the SUM OF HOURS that your charge..
so lets say you charge 500 times a year and you in total charge for 500x4 hours = 2000 hours of charging..
the battery usually last for 5.000-10.000 hours of charging ..
The reason why it is so, is because charging li-ion burns the Kathode (or Anode, can never remember) -- and when its all burned off, the battery wont charge anymore ...
Discharging too fast, also burns the Kathode (Anode) !!

Everyone is all over the place in this thread. The two things I will tell the OP to do is not leave the phone plugged in over night, and stay away from 100 and 0% and you will be fine.
But even if the OP keeps treating his battery the way he says, it will be okay. Not ideal, but still okay.
I personally try to keep the phone between 30-80%.
Sent from my HTC One using xda app-developers app

BenPope said:
That's simply not true.
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Nice input there, just letting you know you're on my ignore list for being rude on every post I've seen you make

MacHackz said:
Nice input there, just letting you know you're on my ignore list for being rude on every post I've seen you make
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I think I'll still be able to sleep at night, but thanks for letting me know.

Well I did find this. What do you guys think?
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries

cgardnervt said:
Well I did find this. What do you guys think?
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
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you found the right source... its were i get my facts from...

Does the HTC One battery stop charging after it hits 100%? There for no longer having the issue of over charging?

[Q] Charging questions and asking for tips

Just an inquiry. I just got my sony xperia z1 last week and may I ask if its okay to charge it even if it's still 30% . And if it is okay to remove it from being charged when it is not yet 100% charged.
i read on some articles that the battery of my xperia should not be 100% charged because it can hasten the aging process of my bat.
any suggestions ? thanks! I just love Xperia so much. It's so awesome! :good:

No that was a very old technique, not applicable anymore
Sent from my C6903 using xda app-developers app

long1988 said:
No that was a very old technique, not applicable anymore
Sent from my C6903 using xda app-developers app
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Ah so i should charge it full then ?

nikkorob said:
Ah so i should charge it full then ?
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yes. charge it to full, plug it in whenever you want, etc.

how long should it take to fully charge the phone ftom let's say 20 to 100%?
I have the impression it is taking too long for me as it went from 20 to 50% in 3 hours
Is there an app I can use to check?

thegios said:
how long should it take to fully charge the phone ftom let's say 20 to 100%?
I have the impression it is taking too long for me as it went from 20 to 50% in 3 hours
Is there an app I can use to check?
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That is so long. Are you using the charger that comes with it or an old charger?
mine takes ~2.5 hours to fully charge from 15%. But when I use my old X10 charger, it takes twice the time.

in case youre not using the phone during the charge:
(this calculation will not be perfect but good enought)
20% left means, that 2400mah of your 3000 are used.
your default sony charger has an max. output of 1,5A.
that means you can charge 1500 mah /hour
that means you need 8/6 hours to charge from 20% to 100%

Caffeineshock said:
in case youre not using the phone during the charge:
(this calculation will not be perfect but good enought)
20% left means, that 2400mah of your 3000 are used.
your default sony charger has an max. output of 1,5A.
that means you can charge 1500 mah /hour
that means you need 8/6 hours to charge from 20% to 100%
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wot?
the phone is supposed to fully charge in 3 hours...

I guess my estimates would be like 2hours tops to get me full charged. From 4%

Just charge it when you go to bed if less than 30% if more than that, Charge it it morning If above 50% should last a working day on stamina mode then charge it fully when you get in, I get about a day and a half which sometimes makes it awkward, unless you can charge it at work?:fingers-crossed:

Caffeineshock said:
in case youre not using the phone during the charge:
(this calculation will not be perfect but good enought)
20% left means, that 2400mah of your 3000 are used.
your default sony charger has an max. output of 1,5A.
that means you can charge 1500 mah /hour
that means you need 8/6 hours to charge from 20% to 100%
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Click to collapse
I really don't understand this z1.mine took 6hours to charge today turned off at 1%.first time charge took more than 3hours.and once it took 3hours to charge 40 then another 2hours or so.but I searched the Web and people have said 3hrs to 4hrs max.and under 3hrs if phone turned off. Is there something wrong with tye Xperia z1?