Database Users

Calibrate X10 Battery

Hello does this method works for x10 to make battery last longer?
Hi *******, I understand your concern regarding battery life on your Nexus One device. The following steps should significantly extend the battery life on your phone. Please connect the phone to the charger with the phone powered on, and allow the phone to charge until the notification LED is green, indicating the device is fully charged. Disconnect the phone from the charger, and power it off. Reconnect the phone to the charger with the phone powered off, and allow the phone to charge until the notification LED is green. Disconnect the phone from the charger and power it on. Once the phone is powered completely on, power it off again and reconnect it to the charger until the notification LED is green. Disconnect the phone, power it on, and use it. You need to use this sequence only once. If the issue of battery life on our phone persists, I recommend you contact our HTC accessory department directly.

I don't think that exact method will work.
It could just be me, but whenever I plug my phone into the charger when it is switched off, it switches on the phone, which doesn't really help when you're trying to charge with the power switched off.

Mine won't charge switched off either, always turns on.
I just run my battery flat a couple of times, seems to help alot.
Sent from my rooted x10i using Tapatalk.

Modern batteries are not supposed to run flat, from what i've been reading. They stay fresh if charged a little and often. I'm not saying anyones wrong, just what i've heard and read.
Sent from my X10i using XDA App

They don't go flat as you'd expect. Lithium has an operating bandwidth. Say 3.5 to 2.9 thats your battery indication from full charge to low battery. Technically the battery is never fully discharged. As someone posted above, a little and often with these new batteries wins the race.
Sent from my X10i using XDA App

I discovered the solution for X10 calibrate. My bat was showing 100% so i pulled ut the charger, turned the device of, took out the battery, put the charger in and finally putting the battery back. When phone was restarted my battery started charging from 88%. hope it works the same for all!
Edit: after led turning off and bat showing 100% i did the whole procedure again, and again it starts charging from 88%!
Sent from my X10i using XDA App

I did it three times in a row now with the same result everytime!
Sent from my X10i using XDA App

After nearly 1h since stop charging i'm still on 100% after a few texts, checking xda on tapatalk ofc and surfing a few webpages, i was down at 99% but magically it restored itself when leaving it be.
Sent from my X10i using XDA App

Tjotte said:
I discovered the solution for X10 calibrate. My bat was showing 100% so i pulled ut the charger, turned the device of, took out the battery, put the charger in and finally putting the battery back. When phone was restarted my battery started charging from 88%. hope it works the same for all!
Edit: after led turning off and bat showing 100% i did the whole procedure again, and again it starts charging from 88%!
Sent from my X10i using XDA App
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Click to collapse
Gonna try this myself. I'll report back soon.
Edit-
Mine starts to load at 88% too.
Edit2-
When loading, my Battery Indicator states "overvoltage" and shows 4,21 volts. On my second X10 it's only 3,77 and it doesn't say overvoltage. But when I take it off from the charger the voltage drops to 4 volts and stays at 3,77 on my other X10. Bizarre.
Edit3-
Battery life seems to have improved a lot. With the screen at 100% brightness and the sound on on Gameboid I only lost 1% per 10mins or so. Quite an improvement from losing 3% per 5min.

Tjotte said:
I discovered the solution for X10 calibrate. My bat was showing 100% so i pulled ut the charger, turned the device of, took out the battery, put the charger in and finally putting the battery back. When phone was restarted my battery started charging from 88%. hope it works the same for all!
Edit: after led turning off and bat showing 100% i did the whole procedure again, and again it starts charging from 88%!
Sent from my X10i using XDA App
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Click to collapse
thanks for the tip! my guess is that the x10 isnt fully charging the battery?
which is kinda werid because i am using my old X1 batt so it shouldn't be draining
this fast.

ooidort said:
Gonna try this myself. I'll report back soon.
Edit-
Mine starts to load at 88% too.
Edit2-
When loading, my Battery Indicator states "overvoltage" and shows 4,21 volts. On my second X10 it's only 3,77 and it doesn't say overvoltage. But when I take it off from the charger the voltage drops to 4 volts and stays at 3,77 on my other X10. Bizarre.
Edit3-
Battery life seems to have improved a lot. With the screen at 100% brightness and the sound on on Gameboid I only lost 1% per 10mins or so. Quite an improvement from losing 3% per 5min.
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Nice to see there are actually improvements, i had to rush to my buss while still doing the third cycle so i dissconnected at 96% and it then kept ticking up to 100% on it's own. It sounds worrying though that you get an over voltage allert, maby we should not do this to much if it might damage the battery. But a few cycles just to max it out can't harm?! I belive the 88% -> 100% went faster though for each cycle so this might be a sign that the battery is pushing to the limit little by little. I'm gonna go for a few more cycles to see the results of it.
Sent from my X10i using XDA App

Tjotte said:
Nice to see there are actually improvements, i had to rush to my buss while still doing the third cycle so i dissconnected at 96% and it then kept ticking up to 100% on it's own. It sounds worrying though that you get an over voltage allert, maby we should not do this to much if it might damage the battery. But a few cycles just to max it out can't harm?! I belive the 88% -> 100% went faster though for each cycle so this might be a sign that the battery is pushing to the limit little by little. I'm gonna go for a few more cycles to see the results of it.
Sent from my X10i using XDA App
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Click to collapse
Yeah, well I had only done two cycles when I noticed the over voltage and stopped there. It seems fine at the moment, temps are normal etc.

I just did one "calibration" again and i actually played around so much with my phone today so when i got home it was on 10%, charged it to 100% and when doin the procedure it reset the battery gauge to 96% rather then the 88% i got earlier.. i wonder if it has any connection to my unplugging the phone at 96% this morning.... hmm, i just don't get this. hehe
Edit: second cycle now and i'm back to charging from 88%.

Thanks for all your constructive ideas. Im also worrying about the battery damage because this is not an official measure. I'll try a few cycles however.
Can you please advise if the coming 2.1 will bring X10 extended battery life?

tried the cycle, first cycle went down to 92%, didnt take long for 100%, second and third she rebooted at 100, sitting at 4.201volts stating overcharge. will update tomorro with a full days use.

I honestly can not tell if my battery has improved from this, but i'm a very inconsistent user
Sent from my X10i using XDA App

i also cannot see a difference yet although i used my x10 an obscene amount today...
Sent from my X10a using XDA App

I haven't tried this calibration by taking out the battery when full and putting it back in thing yet, but I have gotten over voltage condition when recharging anyway. It occurs in the 90% and higher region.
Usually, my voltage reaches 4.21V at 100%.
I have very good battery life for a smartphone; I think mostly due to the R2BA020 update for Canada/Rogers. Also, I turn off APN connection most of the time. I did a couple full discharges early when I got the phone and don't know if that had an impact.

Silly22 said:
I haven't tried this calibration by taking out the battery when full and putting it back in thing yet, but I have gotten over voltage condition when recharging anyway. It occurs in the 90% and higher region.
Usually, my voltage reaches 4.21V at 100%.
I have very good battery life for a smartphone; I think mostly due to the R2BA020 update for Canada/Rogers. Also, I turn off APN connection most of the time. I did a couple full discharges early when I got the phone and don't know if that had an impact.
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Click to collapse
So this should meen that the battery is always charging at an overvoltage wich would also meen doing this cycle should not harm the battery more then normal.
Sent from my X10i using XDA App

Working
Tjotte said:
I discovered the solution for X10 calibrate. My bat was showing 100% so i pulled ut the charger, turned the device of, took out the battery, put the charger in and finally putting the battery back. When phone was restarted my battery started charging from 88%. hope it works the same for all!
Edit: after led turning off and bat showing 100% i did the whole procedure again, and again it starts charging from 88%!
Sent from my X10i using XDA App
Click to expand...
Click to collapse
Used this did it three times and after the third time on reboot battery on 100% see how long my battery lasts now
Edit-Worked great but then had troubles with ROM so had to reflash. Now when I try this phone just goes into flash mode when USB is plugged in even before the battery. Help?

Need help calibrating the battery

I'm looking to calibrate my battery on my Epic (epic experience froyo.) I am not sure how to do it and I cant seem to find a thread. Any help would greatly be appreciated. Thanks

Charge your phone to 100%.
Boot into Clockwork recovery.
Advanced>Clear/Wipe Battery Stats
Boot up and start using your phone. Use it until it dies.
Charge back up to 100%, not interrupting the charging.
Your battery is calibrated.

my battery charges to 97% and the blue led comes on. is that 100% but displays 97?

odd...now it charged to 100...lol im so confused

Is there a fast way to drain it to zero?
Or does draining it faster than average use cause calibration to be off?
Sent from my SPH-P100 using XDA App

Battery calibration is covered in a few different places on multiple threads.
warlar12 said:
odd...now it charged to 100...lol im so confused
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Click to collapse
muyoso is right - I do that 2-3 times to define the trough and crest (valley and peak) of battery life.
It isn't good for the battery health to drain it past the point it first shuts off (so don't turn it back on until its powered externally). It also isn't good for battery health to overcharge (er, "bump" charge it repeatedly to full).
So when you get to 100% (or when it tells you its "full" - may appear as 97 or 98 - just follow the pop-up) its ready to be unleashed.
Of course, I didn't define the battery management software for the phone so I don't know for sure. But this seems to be the common wisdom contained in the threads here. Good luck.

I have found that some kernels charge to 100 and then let it drain to 96% or so before recharging to 100%. They repeat this over and over until you unplug it, so when you unplug it, its the luck of the draw as to what percentage you are at. Some other kernels charge to 100 and keep it there until you unplug it.

There should be an article in the wiki, or at least a guide for the begginers. Lol at least I havn't bricked my phone yet.

I've had this same problem even with Calibration. Sometimes I get 100, sometimes I dont. With the external dock charger, it never tells me less than 100 though on my extra batteries, but my phone is luck of draw like said before.. I've calibrated twice, and I dont have the patience to do it anymore.

How to get full potential out of your extended batteries!!!

I have the seidio 3500 mah and love, especially after I found out how to manage it properly. Couple tricks with these larger batteries are as follows. This should work with all larger batteries.
1. When the charging light turns green, the battery is only at 1500. Keep on charge for about 3 hours longer or more to get full charges.
2. Wipe battery stats. Recovery, advanced, wipe battery stats. When you hit go, screen will go black for about 30 seconds. It's o.k. it's doing the wipe.
3.Condition the battery. Charge all the way, let run down completely till phone dies. Then charge all the way again. Do this bout 3 times. Should condition about 0nce a month to prolong battery life.
Follow these steps and you will love your big battery. I love mine. My Seidio runs bout a day and a half and I am constantly doing stuff with the phone. ENJOY!!!!

Ok are you using juice defender for it or any application that save battery life
Sent from my PC36100 using XDA App

Nope, I only use task killers that can auto kill when screen turns off. Also, Itry to leave GPS turned off unless I need to turn it on. I just do as I posted origanally and it works great. I do keep my origal batt and back door available so when the batt gets low I can just run it completely dead. Oh yeah, I also have a spare batt charger the just charges the batt by itself.

squick said:
Nope, I only use task killers that can auto kill when screen turns off. Also, Itry to leave GPS turned off unless I need to turn it on. I just do as I posted origanally and it works great. I do keep my origal batt and back door available so when the batt gets low I can just run it completely dead. Oh yeah, I also have a spare batt charger the just charges the batt by itself.
Click to expand...
Click to collapse
Don't do it!!!! Task killers are horrible for any phones running FroYo.

How come? It has never seemed to effect it.

kse91holydiver said:
Don't do it!!!! Task killers are horrible for any phones running FroYo.
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Click to collapse
Some apps hang so it helps to use a task killer, I exclude the apps that usually start in their own. I also noticed after I close everything after a reboot, the phone runs much smoother with just the necessary apps running.

squick said:
1. When the charging light turns green, the battery is only at 1500. Keep on charge for about 3 hours longer or more to get full charges.
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Click to collapse
That makes no sense. When the light is green, the battery is at 4.15-4.2 V, and it's no longer charged at this point.

Task killer should only be used if an app hangs, not set to automatic kill, android does this on it's own. GPS only turns on when an app needs it so turning it off does nothing. I get a full day and a half on a standard battery with Wifi on, GPS on and juice defender set to every 15 minutes which I'm now turning off due to facebook app and push notifications.
Sent from my PC36100 using XDA App

DirtyShroomz said:
Task killer should only be used if an app hangs, not set to automatic kill, android does this on it's own. GPS only turns on when an app needs it so turning it off does nothing. I get a full day and a half on a standard battery with Wifi on, GPS on and juice defender set to every 15 minutes which I'm now turning off due to facebook app and push notifications.
Sent from my PC36100 using XDA App
Click to expand...
Click to collapse
So you can leave GPS on and its not killing the bat unless your running a gps intensive app? I had no idea....
Thanks
JP

nabbed said:
That makes no sense. When the light is green, the battery is at 4.15-4.2 V, and it's no longer charged at this point.
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Click to collapse
The voltage isn't the the same as amps. When the batt is at 1500 it still has the proper voltage to run the phone but the cells are not full. The EVO is set to turn the light green when the batt is at 1500. I found this to be true cause when I first got the batt I would charge till it turned green then off I went. I wasn't getting any better batt life until I found info on how to properly charge these batts. Now I get bout a day and a half.

Squick is right. Let it charge for another few hours after it goes green for the extended battery from Seidio. If you unplug it right after it hits 100, it'll drop to 75 pretty quick. So let it keep charging.

squick said:
The voltage isn't the the same as amps. When the batt is at 1500 it still has the proper voltage to run the phone but the cells are not full. The EVO is set to turn the light green when the batt is at 1500. I found this to be true cause when I first got the batt I would charge till it turned green then off I went. I wasn't getting any better batt life until I found info on how to properly charge these batts. Now I get bout a day and a half.
Click to expand...
Click to collapse
The charging circuit has no way of the determining the charge capacity. The only property that can be measured is the voltage, and consequently the rate at which voltage is changing and the current during charging.
If the charging circuit relied on capacity, you'd never be able to charge past 1500mah.
The basic process is to charge at constant current until each cell reaches 4.2 V; the charger must then gradually reduce the charge current while holding the cell voltage at 4.2 V until the charge current has dropped to a small percentage of the initial charge rate, at which point the battery is considered 100% charged. Some manufacturers specify 2%, others 3%, but other values are also possible.
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http://en.wikipedia.org/wiki/Lithium-ion_polymer_battery#Charging

nabbed said:
The charging circuit has no way of the determining the charge capacity. The only property that can be measured is the voltage and the rate at which voltage is changing during charging.
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Click to collapse
After all that I have read and personally tested, the battery is not fully charged when the light turns green. I have taken the phone off charge once the light turned green and the battery lasted no longer than a 1500. I found numerous threads that stated that the evo goes green once the battery reaches the 1500 point and that you need to charge well past the green full light. Once I started letting it charge at least 3 hours over, I get awesome battery life. If there is another explaination for this I would love to know!

squick said:
After all that I have read and personally tested, the battery is not fully charged when the light turns green. I have taken the phone off charge once the light turned green and the battery lasted no longer than a 1500. I found numerous threads that stated that the evo goes green once the battery reaches the 1500 point and that you need to charge well past the green full light. Once I started letting it charge at least 3 hours over, I get awesome battery life. If there is another explaination for this I would love to know!
Click to expand...
Click to collapse
Try this:
1) Charge the phone till the light goes green.
2) Power off the phone completely (shut down).
3) Charge more with the phone being off until the light goes green again.
I'm guessing the extended battery like 3500mAh should be nearly fully charged at this point, and it shouldn't take more than 30-45 minutes for the second charge, as opposed to 3 hours.
The reason for this behavior, and I'm guesstimating here, is that HTC optimizes charging in the kernel to never exceed a certain limit, which is very close to 90-95% charge. A double capacity battery, having a different charging rate and the limit current, should be at 80-90% - double the difference - when charged with the phone on. Eliminating this optimization from HTC by charging with the phone off should, in principle, allow faster charging to nearly 100%.

squick said:
3.Condition the battery. Charge all the way, let run down completely till phone dies. Then charge all the way again. Do this bout 3 times. Should condition about 0nce a month to prolong battery life.
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Click to collapse
Nonsense! The Evo uses a LiPo battery and there is no beneficial reason whatsoever to running the battery down. In fact, running the battery down unnecessarily will reduce the cycle life and the calendar life. In the simplest of terms, the LiPo cell chemistry is only capable of so many charge-discharge cycles before it loses significant ability to store energy and unnecessary cycles just use 'em up unnecessarily.
In fact, a bunch of partial charge-discharge cycles are a lot easier on LiPo cells than a few full charge-discharge cycles. In other words, your battery will remain healthy a lot longer if you charge it whenever you can instead of waiting until you have to all the time.
Pete

PGRtoo said:
Nonsense! The Evo uses a LiPo battery and there is no beneficial reason whatsoever to running the battery down. In fact, running the battery down unnecessarily will reduce the cycle life and the calendar life. In the simplest of terms, the LiPo cell chemistry is only capable of so many charge-discharge cycles before it loses significant ability to store energy and unnecessary cycles just use 'em up unnecessarily.
In fact, a bunch of partial charge-discharge cycles are a lot easier on LiPo cells than a few full charge-discharge cycles. In other words, your battery will remain healthy a lot longer if you charge it whenever you can instead of waiting until you have to all the time.
Pete
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Click to collapse
Agreed. The only reason to discharge the battery completely might be to reset the battery calibration data and to recalibrate. But I really don't know if that even works.

Just saw the posts. I did not know that, but the rest still seems to work. If I charge the vary well past the green light, I get almost 2 days of use out of it.
Sent from my PC36100 using XDA App

I need testers for my battery fix that in theory, should charge all batteries (stock and extended) to maximum capacity. So far I tested it with a stock battery and it only lost 4% in an hour after being on the charger for 2 hours. Im testing my extended battery right now(it's only 1800mah).
here's the thread: http://forum.xda-developers.com/showthread.php?t=876590

Don't be stupid and fall for this trick. It's only prank in case noobs don't know. A day and a half is normal for 3500MAH battery with full use ( abuse the hell out of it ).

I think nabbed has got it, your battery loops once it gets to the max the battery can hold. Its megahertz, not amps or volts.. Your phone tries maintaining 100% by letting itself lose power and have to charge back up. Like I said, its a loop pattern.

Wrong battery charge status???

OK guys,
I let the battery on my phone purposely drain completely until the phone shut off on its own. The battery status was at 3% before I let it drain, then I would imagine it went to obviously 0%. So, I took the battery out for about five minutes to cool off, I put everything back, and plugged the phone to a USB port to charge. To my surprise the battery level displayed at 67%. I think something is not correct here. Charging the phone with a micro usb cable from 0% to 67% in a few seconds is not possible. What is that, supersonic charge?
Can someone please explain what is going on here? Could it be the ROM? Is someone having the same issues?
Thanks,
Jose
Samsung Galaxy S 3G
Rooted with Axura 2.3.1.3

The battery may not be calibrated correctly. You can download the Battery Calibration app off the market for free. Charge your phone to 100%, open the app, click the calibrate button, then unplug from the charger. After that let your battery drain completely until your phone shuts off then charge without a break back up to 100%, and you're battery should be accurate.
Sent from my ZenDroid using XDA Premium App

I'll check that. Thanks for the info.

Mine does that all the time, no matter how many times i've calibrated the battery.

Agreed. I have calibrated my battery several times and when I hook my Vibrant to charge, after a few minutes it reads 65% or something of the sort when it was at 10% earlier

[Q] Nexus 4 battery

Is it possible to ruin my phone's battery due to overcharging? I charge my phone overnight no matter what percentage it is on, I still charge it I know this is bad, but can this ruin the battery? thanks

You should be able to charge as long as you want w no problems as long as you're doing this in a cool or room-temp environment (rather than say leaving it alone in a car charging at high noon w AC off, windows down & no sun shades on the windshield). If you have your phone charging in hi-temp conditions too long\often your battery swells & you get gradual irreparable damage.

HeyyMyNameIs said:
Is it possible to ruin my phone's battery due to overcharging? I charge my phone overnight no matter what percentage it is on, I still charge it I know this is bad, but can this ruin the battery? thanks
Click to expand...
Click to collapse
If u make a correct use of your battery it won't get damaged. Extreme overclock, overvolt, etc can ruin your battery, but if u charge it every day because ur battery is empty it's ok, and u won't have any problem.

luiseteyo said:
If u make a correct use of your battery it won't get damaged. Extreme overclock, overvolt, etc can ruin your battery, but if u charge it every day because ur battery is empty it's ok, and u won't have any problem.
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Click to collapse
what if I charge it eventhough the battery isnt empty?

HeyyMyNameIs said:
what if I charge it eventhough the battery isnt empty?
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Click to collapse
You should be fine. Just look out for power surges!

sspyed said:
You should be fine. Just look out for power surges!
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Click to collapse
thanks man =) thanks to the both of you who replied

Normally, when your phone reaches 100 % full battery level, it stops charging and starts discharging. At around 95 % level, it starts charging again. This all takes a toll on the battery, especially over a long period.
If your phone's battery is at or above 50%, leave it alone or turn it off for the night.
I have an external battery pack for use during the day time, just for situations like this.
Sent from my Nexus 4 using xda premium

Been thinking of asking this for some time. Thanks OP for posting and big thanks to those who replied.

jamesc760 said:
Normally, when your phone reaches 100 % full battery level, it stops charging and starts discharging. At around 95 % level, it starts charging again. This all takes a toll on the battery, especially over a long period.
Click to expand...
Click to collapse
I don't think that's correct. It should switch to a trickle charge, which won't harm the battery, not stop charging completely.
Sent from my Nexus 4

What I spend a lot of time charging the phone through USB? I leave it on charge at work plugged into the computer through USB as there are no free plug sockets. My battery just seems to be getting worse and worse over the last couple of months... Could this be the problem?
Sent from my Nexus 4 using xda app-developers app

HeyyMyNameIs said:
Is it possible to ruin my phone's battery due to overcharging? I charge my phone overnight no matter what percentage it is on, I still charge it I know this is bad, but can this ruin the battery? thanks
Click to expand...
Click to collapse
It'll automatically stop charging itself when it's full, it's impossible to overcharge a modern cell phone battery these days. They are a bit more computerized than the old nicad batteries from back in the day. It's actually healthier to give lithium batteries partial charges at a time instead of draining to zero percent and charging to 100 percent.

phil35 said:
What I spend a lot of time charging the phone through USB? I leave it on charge at work plugged into the computer through USB as there are no free plug sockets. My battery just seems to be getting worse and worse over the last couple of months... Could this be the problem?
Click to expand...
Click to collapse
I doubt it. Could be a faulty battery, but more likely to be apps draining it in the background. Install BetterBatteryStats and see what is using the battery.
Sent from my Nexus 4

i'm using app called full battery & theft alarm. i always charge my phone during sleep, and this app will wake me up to disconnect the charger if the battery is full.
i hope this will prolong the battery life

How do you know your battery is getting worse if it's always charging?
My personal experience is the less you charge it, the better it will perform. However, when you DO charge it, make sure you are less than 30% battery and charge it to 100% before removing it.
For me it's easy, I basically charge my phone at night when I go to bed and that's it. I easily get through an entire day on this phone, though I admit I usually only have about 2-1/2 hours screen on time (I mostly use my tablet when I am at home)