Database Users

Long Battery charging time and potential memory effect

hi,
I have the problem, that if I charge the battery from near empty state, that it requires 4-5 hours to charge with the ac adapter and if i charge it via usb it needs 910 hours. The issue is, I am not at the same place the whole time,
so sometimes I need it to unplugged, before the battery is full, so this may quicken a potential memory effect. How do you handle the battery charging?
do you charge it before it gets empty or do you unplug before its full?
Did you find a way to charge it faster?
cheers Avalun

Avalun said:
hi,
I have the problem, that if I charge the battery from near empty state, that it requires 4-5 hours to charge with the ac adapter and if i charge it via usb it needs 910 hours. The issue is, I am not at the same place the whole time,
so sometimes I need it to unplugged, before the battery is full, so this may quicken a potential memory effect. How do you handle the battery charging?
do you charge it before it gets empty or do you unplug before its full?
Did you find a way to charge it faster?
cheers Avalun
Click to expand...
Click to collapse
Always charge your device switched off if possible. This makes the charging time shorter and helps the battery to "calibrate".
If phone on, make sure screen is off. Also helps.
Your phone will always take longer to charge while synced through USB.
Try and let the phone completely drain before charging it. This should increase battery length.

hi,
I usually plug it on when the message of critical battery level appears, the problem if I switch the device off is, that no one can call me during this time.
How long does your HD need to charge from near empty to full?

Avalun said:
hi,
I usually plug it on when the message of critical battery level appears, the problem if I switch the device off is, that no one can call me during this time.
How long does your HD need to charge from near empty to full?
Click to expand...
Click to collapse
To fully charge from empty it normally takes a couple hours.
Generally I always charge my phone at night and have it sync'd via USB during the day so it rarely gets below 75%
There has been previous threads regarding battery strength, charging etc.
Try typing battery into search this forum at top of page.
Hope this helps

hi,
thanks for the answer I already read many other battery threads here, they are all about battery draining, not charging time.
So I thought I just ask, what other peoples have to say about this.
As I see the charing time is normal so thanks for the answer.

Xperia wont charge to 100% - gets stuck at 90 %

Xperia wont charge to 100% - gets stuck at 90 %
any ideas whats going on?
its been charging all night at 90% :S

are you charging via usb to pc, or usb to floor charger?

i hope battery not been extremely discharged before....

USB - but i've just done 2 restarts and 3 soft resets and its gone up to 100% now - really odd problem - lucjy its fixed - phew

if you can't get it to 100% charge while charging with the floor charger..
you might have already discharged it too greatly.
90% might be your new maximum, unless it's the phone's problem.
EDIT: Ah I see, that's good then! I usually charge it with the floor charger since it's faster than a pc-usb charge =]
Good news then~

If you have a laptop and you're trying to charge you're phone thru the USB port...you'll wait A LONG LONG time...
I only use the floor charger...

i think by doing a soft reset, you just recalibrated the battery settings. just a guess tho. sometimes battery charge, and indication gets out of sync and so you have to recalibrate them. as i said, dont know if this applies to the x1.

To recalibrate a battery you need to drain it to the last drop then charge it fully (i think preferably thru Wall charger) for several hours.. so the battery controller can detect which voltage range the battery is working on... normally i think when i charge thru usb it gives me power but i think it drops faster... than when on wall charger...
just don't drain it very often.. it makes your batt go bad... i read somewhere that once every three months is ok...

Charging Weirdness in Android

So lately I've noticed that battery life is strange on my Vogue with android. When I let it charge overnight, I take it off the charger and it instantly falls to about 97%. At about 1 PM the battery hits around 30% so I plug it in.
Here's the weird part: it's only charged for a half hour and it's reached 80% according to the meter. After another half hour it will say 100%, and stops charging. If I take it off the charger, it will instantly drop to around 77%, and lower quickly. If it says it is not charging anymore, but I know it is not full, is it really not charging? Can I just leave it on and expect it to continue charging to the real capacity?
Is this just how it is? or is there anything to be done about this? I've tried completely discharging the battery a few times, but didn't really help at all that I could tell.
Curious about everyone else's experiences
Thanks!

I think I remember reading somewhere that Android reads the temp of the batt. to figure out what % is left....
Try this.... When your batt. is low, take it out and blow on the connectors for a few minutes... See if your % rises.

cbaty08 said:
I think I remember reading somewhere that Android reads the temp of the batt. to figure out what % is left....
Try this.... When your batt. is low, take it out and blow on the connectors for a few minutes... See if your % rises.
Click to expand...
Click to collapse
Trying this now... lol
Would I have to do this every time I want to get a full charge? seems strange. Maybe this woudl explain why it charges overnight - longer period of time the battery can cool down, charge up more, cool down, charge

how long should the vogue legitimately take to charge? Seems as tho mine does well within an hour...

berardi said:
how long should the vogue legitimately take to charge? Seems as tho mine does well within an hour...
Click to expand...
Click to collapse
3 hours usually.

gigermunit said:
3 hours usually.
Click to expand...
Click to collapse
Perhaps my battery has just lost it's capacity - it is around 2 years old

Here's what I posted about battery issues in the thread for my Kaiser build:
Battery issues are due to the driver. It was written months ago and AFAIK hasn't been looked at since... I know it has some bugs, here are the ones I am used to:
Intermittent charging
stopping at certain percentages (like ~70%) and refusing to charge
when refusing to charge also does not detect when plugged into USB/ADB
won't fully charge
reports different battery percentage than WM
sometimes jumps instantly from ~30% to ~4%
reports connected to computer when only connected to wall charger
repeated USB-connected notifications
battery becomes hotter during charging than on WM
I should add also that sometimes when the battery dies in Android it won't charge in WM until I boot the phone in WM and unplug and replug the charger.
If I want a proper charge, I just boot WM and wait ~2 hours. Much simpler than Android.

berardi said:
Perhaps my battery has just lost it's capacity - it is around 2 years old
Click to expand...
Click to collapse
well it could be that the age, my phone of 2 years got replaced after the power button snapped off, got another which i lost which got replaced by my most recent.

polyrhythmic said:
Here's what I posted about battery issues in the thread for my Kaiser build:
Battery issues are due to the driver. It was written months ago and AFAIK hasn't been looked at since... I know it has some bugs, here are the ones I am used to:
Intermittent charging
stopping at certain percentages (like ~70%) and refusing to charge
when refusing to charge also does not detect when plugged into USB/ADB
won't fully charge
reports different battery percentage than WM
sometimes jumps instantly from ~30% to ~4%
reports connected to computer when only connected to wall charger
repeated USB-connected notifications
battery becomes hotter during charging than on WM
I should add also that sometimes when the battery dies in Android it won't charge in WM until I boot the phone in WM and unplug and replug the charger.
If I want a proper charge, I just boot WM and wait ~2 hours. Much simpler than Android.
Click to expand...
Click to collapse
Gah, that's too bad.
When I charge overnight, I don't have problems. It's in the middle of the day when it isn't on the charger for too long that I have issues.
Thanks for confirming the weirdness though, at least I won't bother with a new battery (yet)

[Q] Drain during charging.. X10i

Hi, my phone the x10i has a problem. A few days ago my phone fell out of bed during charging. The battery fell out, and then i reconnected the cable and inserted the batterry again and fell asleep. the morning after my telephone was 5%..
So i reflashed the firmware and the problem was gone for 2 days..
Now when i connect the telephone it charges till 89% and then it slowly start to drain to 8%.
PS when i shutdown the telephone and connect the power it charges to 100%
What should i do or does someone have the same problems?
Sorry for the bad language but i had to write fast!

when mine charges to 100% it will slowly drain over night, like battery 'forgets' that its on the wire.

PartyVirginX10 said:
when mine charges to 100% it will slowly drain over night, like battery 'forgets' that its on the wire.
Click to expand...
Click to collapse
I noticed the same, i think X10 will stop charging when it reaches 100% and will never start charging again unless you unplug the phone and plug it again.
Sometimes when i leave mine on the charger during night, i get about 90%( sometimes even less) at morning.

I also noticed that today,when I unpluged phone,battery was on 91% and when i last checked when it was charging it was on 94%,I think that is some feature to avoid overcharging of the batery and on some way it drains itself to protect battery and phone

Sewez said:
I noticed the same, i think X10 will stop charging when it reaches 100%
Click to expand...
Click to collapse
Correct, numerous threads on the subject.
Sewez said:
and will never start charging again unless you unplug the phone and plug it again.
Click to expand...
Click to collapse
That's incorrect, it should charge to 100% (mine does), drop charge to what ever level (I've never sat to watch what it drops to), then charges again.

If you install Juice plotter you will be able to track the battery drain behaviour..

The device will charge up to 100% then AC supply is turned off.
Then it will run on battery until it drops to 90%.
... and will charge again to 100%.
(This 100%->90%->100% can occurs several times during one charge. Juice plotter will show you this)
This happens to me during over night charging.

Me too on both my x10i's. I assume this is normal behavior.
Sent from my X10i using XDA App

Mine sometime is battery around 50% i plug in to AC and I use the phone while charging but the battery still continue to drain until around 40%, and slowly raise to 100%

pacharru said:
The device will charge up to 100% then AC supply is turned off.
Then it will run on battery until it drops to 90%.
... and will charge again to 100%.
(This 100%->90%->100% can occurs several times during one charge. Juice plotter will show you this)
This happens to me during over night charging.
Click to expand...
Click to collapse
Yes, that's correct. In this way your battery life is saved, because it couldn't reach higher temperatures or fall in short circuit.
It's a normal behaviour I've had also in 1.6, don't you?

Baldolo said:
Yes, that's correct. In this way your battery life is saved, because it couldn't reach higher temperatures or fall in short circuit.
It's a normal behaviour I've had also in 1.6, don't you?
Click to expand...
Click to collapse
Mine only started this since 2.1

Baldolo said:
Yes, that's correct. In this way your battery life is saved, because it couldn't reach higher temperatures or fall in short circuit.
It's a normal behaviour I've had also in 1.6, don't you?
Click to expand...
Click to collapse
Mine did the same in 1.6(i mean it did stop charging at 100%, i never saw it start charging again at 90%)

pacharru said:
The device will charge up to 100% then AC supply is turned off.
Then it will run on battery until it drops to 90%.
... and will charge again to 100%.
(This 100%->90%->100% can occurs several times during one charge. Juice plotter will show you this)
This happens to me during over night charging.
Click to expand...
Click to collapse
Same behavior in 1.6 and now on 2.1

got the same prob since 1.6, sometimes i'm watching a video and it is plugged then the battery reaches 80%

Phone wont charge over 85%

Hi all.. My Evo Shift 4G seems to have developed a charging issue.. I'm not sure if the phone is not reading the voltage from the battery properly or what.. Basically, my phone will not charge over 85%... In other words -- it never reaches 90%+ on the phone, which would typically cause the charging indicator to change from amber to green.
I've watched what the phone supposedly sees with 'Battery Monitor Widget'. Currently, the phone has been on the AC charger for about 7 hours... The phone reports 77% charged, 32.1 degrees C for the battery, 4024mV. I've watched it during the charge cycles, and when the battery is low, the current is definitely being applied to the battery -- around 500-600 mA. When it gets close to 70%, however, it starts ramping down the current.. Right now, at that 77% level, it is showing 0mA being applied to the charging circuit.
I have 3 batteries -- two HTC original batteries, one about 2 weeks old, the other from March.. I also have a 3rd party battery.. All of the batteries behave the same in MY phone.. If I throw the batteries into a couple of friend's HTC phones (one has a Hero, the other a MyTouch 4G) -- their phones report the charge at 100%.
I also have an external charger -- if I charge the batteries in that fully, my phone shows 85% charge, while my friend's phones will show the batteries at 100%. Likewise, if I put their batteries in my phone once theirs are fully charged, my phone will show it at 85%.
Anyone know how or if I can correct this?
Thanks,
Rick

Have you tried clearing the battery stats and re-calibrating?

Ron Overdrive said:
Have you tried clearing the battery stats and re-calibrating?
Click to expand...
Click to collapse
I would suggest you do that.
Your phone would have to be rooted though.
Evo SHIFT

Enraged21 said:
I would suggest you do that.
Your phone would have to be rooted though.
Evo SHIFT
Click to expand...
Click to collapse
It is rooted.. I get the same behavior on CM7 or the rooted OTA 2.3 update by x99..
I've tried clearing the battery stats.. That has not worked.. I believe it comes down to a problem with how my phone is reading the voltage of the battery..

Worked for me...
I had the same problem but the it could charge to 93ish% percent, not 85. I fixed by clearing the battery stats, setting the screen to never go off, and left it on overnight (while I'd been using it all day), recharged it to full while it was off the next morning, and unplugged the charger and reinserted it until when I could plug it in starting with the light green. Following, I turned it on while it was still plugged in, downloaded the battery calibration app from the market, and calibrated it.
Afterwards, I've been able to get the same outrageous battery life that others claimed they got on roms like evervolv and miui, and been able to charge to full. See if this works for you.

Have you tried a different charger? Say if you are using the wall try a usb or if using a usb try a wall. Just a suggestion don't know if it'll work.
EDIT: Looks like I need to follow my own rules and read everything fully. Sorry for the ignorant post it'll prob be no help!

FdxRider said:
Have you tried a different charger? Say if you are using the wall try a usb or if using a usb try a wall. Just a suggestion don't know if it'll work.
Click to expand...
Click to collapse
I've tried charging via a number of different chargers:
1) HTC AC Charger (5V/1A)
2) Computer USB (5V 500mA)
3) Palm Pre AC Charger (5V/1A)
4) Palm Pre Car Charger (5V/1A)
5) Aftermarket AC Charger (5V/1A)

I think there may be a problem with CWM. I tired the wipe battery stats a few times (7) and it seems like it didn't do anything. Then I downloaded an app from the market called battery calibration, wiped with the app. I think it actually worked with the app, as my run times went from about 8-9hrs to well over 24. Hope this helps - Viperspike
From what i understand, charge to 100%, turn phone off and charge a little more, reboot, wipe batt stats and unplug. Run all the way down to zero (phone shutdown) and restart one more time (it should immediately turn off) Then plug in the charger, and reboot. Once on the charger make sure it charges uninterrupted until it reaches 100% the first charge.

Thats the problem.. I can never get anywhere near 100% -- 85% is the top.. At that point current drops to 0mA and the charging circuit turns off.
I did send a support request to HTC.. This is their response:
You were having issues with the battery life on your HTC EVO Shift 4G. You mention that you have tried another battery but you cannot get the LED indicator light to turn green or the charge percentage to go above 85%. You state that you have tested your two batteries in a friend’s MyTouch 4G and HTC Hero. Both devices show 100% when there is an indication of a full charge. Unfortunately, there might be another hardware related issue causing this to occur so I would suggest you consider a repair request for your Android device.