Develop Bugs

ROMs or hacks that allow trickle charging past 90%?

So it's already been established that after the EVO charges fully to 100% it then stops receiving a charge and runs off the battery before charge cycling again. All the while displaying 100%.
Has any effort been put into changing the way this operates? Seems like it'd be nice to leave the phone on a charger and when you take it off, it would actually be at 100% and not at some arbitrary percentage between 90% and 100%.

It's better for the battery life.It's really good option if you ask me.
Sent from my HTC Magic using XDA App

You mean make it so that the battery's status bar shows a realistic value once it stops taking a charge, even though it's still plugged in, right? Not actually changing the way it takes a charge. I'd be interested in seeing that happen.

Is that why when you unplug it, the first 5% or so disappear within minutes?

thegame3202 said:
Is that why when you unplug it, the first 5% or so disappear within minutes?
Click to expand...
Click to collapse
Yup. This is why when you charge overnight the battery plummets right after.
*Currently Mobile*

Don't leave it plugged it after it reaches 100%. Problem solved.

triggert said:
Don't leave it plugged it after it reaches 100%. Problem solved.
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Click to collapse
Valid point. Lol

There are some people who don't want to wake up in the middle of the night to unplug their phone. Like me.

annoying, but just unplug your phone when you do wake and plug it back in after about 10 seconds. let it finish fully charging while you get ready.

it's better for the battery though, case closed. Lenovo has been doing somehting similar w/ their laptops for years. It never charges the battery past like 97%, and when it does reach the top it stops charging until it falls below like 92 then recharges. HTC needs to loook out for the battery they already have enough flak from all of us for the last few years w/ every touch device they have had. We want more life, and they are giving it to us, just wish they could figure something out like lenovo, let it go down to mayeb 94 then charge up again perhaps.

it really isn't true, mine dumps 10% or so off the charger regardless of if it has been on the charger all night or 2 seconds after it turns green.

So I've done the:
1 charge to green
2 unplug
3 turn off
4 charge while turned off.....to green again.
And here are my honest results.
Boom........phone has 20% left after 16.5 hrs of moderate use (calling time total 1 hrs talk total, surf /post 1 hour total, load up 5 apps from the market, listen to audio clips on the speaker phone for almost an hour straight, podcast this morning for 30 min...and other randomness)
And still have 20% left. Going since 6:30 a to 10:30 p...........approximately 16 hrs equals 80% so about 3.2 hrs left to use before dead.
THIS EQUALS APPROX 19.2 HOURS OF MODERATE USE BEFORE RECHARGE NEEDED.
eat it Apple 4G . You can't even reliablly make calls let alone last that long without charging. My 3g never lasted that long. You still need a wall Apple we are truly mobile. If I was on the road I could (don't need to just yet) swap out for another battery.
I'm loving xda for all their brains helping me get the most out of this phone. Thanks to all.
Sent from my HTC EVO 4G using the XDA App.

The point here is that we shouldn't have to do the "charger circle jerk" to have 100% battery. I should be able to unplug it and have a full battery. Not 90%. I might need that 10% later on today, its accomplishing nothing sitting on my nightstand.
If the battery is toast after a year instead of a year and half, i don't care. I want a fully battery, not an almost full battery.

jasonziter said:
So I've done the:
1 charge to green
2 unplug
3 turn off
4 charge while turned off.....to green again.
...
.
Click to expand...
Click to collapse
HTC advised a similar solution to the battery issue. I did this a few times and my battery lasted more than 15 hours with moderate use. Here's the post:
http://forum.xda-developers.com/showthread.php?t=712990

Edit: Duplicate Post

Edit: Duplicate Post

My phone used to do this, even after i followed all the little tips and tricks of playing hide and go seek with the charging cable and my phone.
Know how i solved it?
Bought one of those $10 Ebay 2 1500mAh TP2 Battery And Wall Charger bundles, now i dont use the OEM charger at all, the cable turned into a permanent USB cable on my comp and never sees the actual HTC charging unit it plugs into for AC power. I have 3 batteries and i rotate them in that little wall charger which actually charges them to 100%. Its also proven because if you take one of the batteries, put them in the phone and charge them until the green light comes on, supposedly to "100%" and then take the actual battery out and put it in the ebay wall charger, it will still charge for another 15-25 minutes. Charging it in the phone, as soon as i unplug, it almost instantly always drops to 90%... charging with the ebay wall charger, it will stay at 100% for a while before it falls off.
Below is the link to my thread which contains linkage, pics and info about the ebay bundle, others also claim the same issues and fixes in my thread. I mean for $10 bucks, does it really matter if it works for you or not? Its worth the shot and for me, it was a great investment.
Best of luck.
http://forum.xda-developers.com/showthread.php?t=715739

I did this last night and I'm at 14 hrs and 57% left. If I have to charge like this to get great battery life that's fine. My iPhone 3gs would last half a day. So this is blowing it out of the water. And I can hold it with my left hand to talk.
Sent from my PC36100 using

You can hold the 3gs with your left hand as well...

cpiddy said:
I did this last night and I'm at 14 hrs and 57% left. If I have to charge like this to get great battery life that's fine. My iPhone 3gs would last half a day. So this is blowing it out of the water. And I can hold it with my left hand to talk.
Sent from my PC36100 using
Click to expand...
Click to collapse
Good stuff man, I finally just switched batteries after 21 hours.

[Q] Seidio 3500 mAh battery question..

i just got this battery and did the initial 8hour charge... but im seeing that once i take it out of the plug, battery monitor says it starts at 100% and then after 15 minutes drops to 86%....
is this bad reading from the program? or did i get a defective battery?
using Baked 1.7 with Kernel 6

uget2seconds said:
i just got this battery and did the initial 8hour charge... but im seeing that once i take it out of the plug, battery monitor says it starts at 100% and then after 15 minutes drops to 86%....
is this bad reading from the program? or did i get a defective battery?
using Baked 1.7 with Kernel 6
Click to expand...
Click to collapse
Are you using an external battery charger or are you charging through your phone? I do not have one of these batteries but I'm under the impression that the EVO firmware will only allow a charge of 4.15v which would be far below the requirments of a 3500mAh battery.
If you have an external charger and that is what you are using.... I would say your battery is defective. Contact the manufacture for recommendations.

No, I am using the phone to charge....is this a hardware limitation or is there a patch for this?
Sent from my PC36100 using XDA App

Have you wiped battery data via recivery?
Shouldnt matter but you might try
Sent from my PC36100 using XDA App

uget2seconds said:
No, I am using the phone to charge....is this a hardware limitation or is there a patch for this?
Sent from my PC36100 using XDA App
Click to expand...
Click to collapse
Seido website says to charge until your phone shows 100% then leave on the charger for 2-3 addtional hours.
Even then I would think an external battery charger would be the route to take to unleash the full potential of the 3500mAh battery.
Keep me posted because I was thinking of buying one of those. But if you have to remove the battery to fully charge it then that would be a deal breaker for me.

wirenut110 said:
Seido website says to charge until your phone shows 100% then leave on the charger for 2-3 addtional hours.
Even then I would think an external battery charger would be the route to take to unleash the full potential of the 3500mAh battery.
Keep me posted because I was thinking of buying one of those. But if you have to remove the battery to fully charge it then that would be a deal breaker for me.
Click to expand...
Click to collapse
I didn't have to use an external charger. The first charge I let go overnight. After 4-5 charge cycles the percentage drop was much more normal for that first 15 minutes, and of course after that the battery lasts forever at idle. I generally get 10-15 hours of heavy use (couple hours of streaming movies/music, texts, websurfing, some video conferencing, that kinda stuff), 20-30 moderate, and 40 with minimal usage.

uget2seconds said:
i just got this battery and did the initial 8hour charge... but im seeing that once i take it out of the plug, battery monitor says it starts at 100% and then after 15 minutes drops to 86%....
is this bad reading from the program? or did i get a defective battery?
using Baked 1.7 with Kernel 6
Click to expand...
Click to collapse
The Evo cant charge this battery properly. The only way to get a proper charge is in a wall charger. Don't get me started. Look in the other 3500 thread for all you seek.

holy flying ducks!!!!! you guys dont read/search
there is an entire thread (266 replies) on this battery (infact, a few threads RIGHT below this one)....VERY lengthy too... reading and searching is fundamental folks!!!!! http://forum.xda-developers.com/showthread.php?t=736273
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in order to get full charge FROM any battery related to the evo, you will have to remove from phone.... something in the evo whether it be software or hardware doesnt allow us to charge more than 1500 (really 1400 +/- mah) back into the battery. Dont ask me why but it just is that way...sucks i know
smw6180 said:
I didn't have to use an external charger. The first charge I let go overnight. After 4-5 charge cycles the percentage drop was much more normal for that first 15 minutes, and of course after that the battery lasts forever at idle. I generally get 10-15 hours of heavy use (couple hours of streaming movies/music, texts, websurfing, some video conferencing, that kinda stuff), 20-30 moderate, and 40 with minimal usage.
Click to expand...
Click to collapse
you're actually cheating yourself and making your phone bulkier for no reason at all. WHile that 10-15 hours of heavy usage may be good...... if you actually think about the charging scheme.... you can do the same thing on the 1500 mah battery LOL
so while you THINK you are charging the battery after your light turns green on your phone, you are not. Your phone thinks the battery is still the 1500 mah battery so that is all it is charging. (yea... you got a bulkier phone and those other 1500mah arent being used/charged #fail)
I know so, cuz you said your battery percentage drops for the first 15 minutes.... with my seidio 3500 mah fully charged into the wall.... i leave the screen on for at least an hour and my battery is still a full 98% if not 99%
wall charger makes a world of difference, talking night and day.
im on my phone ALOT... i keep wifi and everything else on... with a wall charged battery, i see an easy 24 hours + !!!!! Sometimes i say to myself "why wont this damn thing die!!!!!!!!!!!!" no bull lol

please delete

goodelyfe said:
holy flying ducks!!!!! you guys dont read/search
there is an entire thread (266 replies) on this battery (infact, a few threads RIGHT below this one)....VERY lengthy too... reading and searching is fundamental folks!!!!! http://forum.xda-developers.com/showthread.php?t=736273
----------------
in order to get full charge FROM any battery related to the evo, you will have to remove from phone.... something in the evo whether it be software or hardware doesnt allow us to charge more than 1500 (really 1400 +/- mah) back into the battery. Dont ask me why but it just is that way...sucks i know
you're actually cheating yourself and making your phone bulkier for no reason at all. WHile that 10-15 hours of heavy usage may be good...... if you actually think about the charging scheme.... you can do the same thing on the 1500 mah battery LOL
so while you THINK you are charging the battery after your light turns green on your phone, you are not. Your phone thinks the battery is still the 1500 mah battery so that is all it is charging. (yea... you got a bulkier phone and those other 1500mah arent being used/charged #fail)
I know so, cuz you said your battery percentage drops for the first 15 minutes.... with my seidio 3500 mah fully charged into the wall.... i leave the screen on for at least an hour and my battery is still a full 98% if not 99%
wall charger makes a world of difference, talking night and day.
im on my phone ALOT... i keep wifi and everything else on... with a wall charged battery, i see an easy 24 hours + !!!!! Sometimes i say to myself "why wont this damn thing die!!!!!!!!!!!!" no bull lol
Click to expand...
Click to collapse
Then that settles it..i will purchase a wall charger... Recommend any in particular?
Sent from my PC36100 using XDA App

i just stayed with the same brand bro and got the seidio (lets you charge a battery AND use a usb cord to charge your phone).... beside it being on amazon prime didnt hurt either.
gotta love overnight shipping for 4 bucks
especially for gadget junkies like us

goodelyfe said:
i just stayed with the same brand bro and got the seidio (lets you charge a battery AND use a usb cord to charge your phone).... beside it being on amazon prime didnt hurt either.
gotta love overnight shipping for 4 bucks
especially for gadget junkies like us
Click to expand...
Click to collapse
for real! thanks goodelyfe!

no prob homie

Battery won't charge past 98%

I have now done three cycles now drained to 1% and put on charge over night when I unplug and check the phone it says 98% and drops 2-3% within 5 mins of use. But if I plug it back in it will then go back to 100%. Anyone else?

Martinp86 said:
I have now done three cycles now drained to 1% and put on charge over night when I unplug and check the phone it says 98% and drops 2-3% within 5 mins of use. But if I plug it back in it will then go back to 100%. Anyone else?
Click to expand...
Click to collapse
There have been threads about this already. Batteries, once charged fully, cannot 'keep charging', so they will stop charging until it is low enough to charge again.
This protects the battery from all sorts of nasty and evil things.

^ precisely. Batteries shouldn't be pegged at 100% and continue to be charged. The firmware lets it drain down then charge up again. You can just get 'unlucky' and unplug at a point where its discharging and at 98%.

I remember that happening with the Nexus S. I'm thinking it must be a Samsung thing. It's just one of those weird OEM things like, Motorola phones measuring the battery in 10% intervals.

All manufacturers charge their batteries this way but there are many ways to mask that process. People apparently want to see a fully charged phone when they plug it off the charger. They don't mind that their phone drops to something between 95% and 100% in a matter of minutes as long as it's "full" upon disconneting. Seems Google just displays the correct charge instead of pretending to be on 100%.

gokpog said:
All manufacturers charge their batteries this way but there are many ways to mask that process. People apparently want to see a fully charged phone when they plug it off the charger. They don't mind that their phone drops to something between 95% and 100% in a matter of minutes as long as it's "full" upon disconneting. Seems Google just displays the correct charge instead of pretending to be on 100%.
Click to expand...
Click to collapse
Pretty much. The G2 with stock firmware (and from what I remember with the Evo 4G w/ stock), HTC charges to 100%, discharges back to 90%, and charges back up again. etc.. The LED charge indicator turns green at 90% (so according to them, anything about 90% is a "full charge").
You can see this in regular use. There are days where my phone sits at 100% for hours, and others where it only takes an hour to tick down do 99%, even with the same usage. Just depends what "state" the battery is at when you pull it off charge in the morning.

Thanks guys im happy if its one of those oem quirks.

Martinp86 said:
Thanks guys im happy if its one of those oem quirks.
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Click to collapse
If by "quirks" you mean honesty then yes.

Martinp86 said:
Thanks guys im happy if its one of those oem quirks.
Click to expand...
Click to collapse
Its not a quirk, they're just trying to preserve your battery health.

How long do you charge your XPlay for....?

I charge it for about 3 and a half hours just before going to bed. So that's from 8:00 PM - 11:30 PM and take the charger out.
Anyways how long are we supposed to charge the Xperia Play for ?

I charge mine all night from about 10 pm to 6am nearly every night and have had the phone since launch day and never had any problems with the battery or charger but routhly once a month I let the battery completely die to 0% then fully recharge

Shaun27 said:
I charge mine all night from about 10 pm to 6am nearly every night and have had the phone since launch day and never had any problems with the battery or charger but routhly once a month I let the battery completely die to 0% then fully recharge
Click to expand...
Click to collapse
Oh right. So its okay to leave the phone on charge overnight. I think i'll just do that then and every month just drain battery and recharge fully !

I actually don't plug my phone into the charger. I bought some after-market batteries that are the same as the stock battery. I used to have 2 spares, but one was faulty, so I'm down to my main battery and the spare. I leave a battery on the charger until I need it, then stick the other one in the charger. I'd say they stay on the charger for up to 24 hours.

lightningdude said:
I actually don't plug my phone into the charger. I bought some after-market batteries that are the same as the stock battery. I used to have 2 spares, but one was faulty, so I'm down to my main battery and the spare. I leave a battery on the charger until I need it, then stick the other one in the charger. I'd say they stay on the charger for up to 24 hours.
Click to expand...
Click to collapse
So you take each battery out of the Xperia Play and charge them ?

Yup. Once you take the battery out, wait about 30 seconds before putting it in so the battery usage gets wiped. Once you put the other battery in, boot up and you're good to go.

Depending on my usage, I usually just charge it over night, leaving it plugged in from when I go to bed, normally around midnight, to when I get up again at 7ish. I've never had any problems doing this, I am however a VERY high usage person, so a lot of the time I have to give it a top up in the middle of the day, before I go to work.

I usually charge up to 100% right before I go to bed and unplug it and reboot it. I've still got 99~100% in the morning.

Adam3Sixty said:
Depending on my usage, I usually just charge it over night, leaving it plugged in from when I go to bed, normally around midnight, to when I get up again at 7ish. I've never had any problems doing this, I am however a VERY high usage person, so a lot of the time I have to give it a top up in the middle of the day, before I go to work.
Click to expand...
Click to collapse
When i'm just scrolling through menus when having the display on for about 2-3 mins 1% of battery goes. Is this normal and does this happen with yours ?

I charge mine for two hours only

Is it okay to charge the Xperia Play through a extension unit ?

I charge 1-2 times a day. Basically every night before bed I plug it in and it stays for about 6-7 hours, But the bad cell signal at work eats through my battery if I do a lot of texting or anything so by around 4 pm sometimes I plug in for an hour and top up (I'm usually around 25% at that point), or sometimes when I get home but know I'll be headed out I plug in for 1/2 hour or 45 min to get it up around 70-80% or so and I'm good till I get home, even if I play games and stuff or whatever else.

Rogue Leader said:
I charge 1-2 times a day. Basically every night before bed I plug it in and it stays for about 6-7 hours, But the bad cell signal at work eats through my battery if I do a lot of texting or anything so by around 4 pm sometimes I plug in for an hour and top up (I'm usually around 25% at that point), or sometimes when I get home but know I'll be headed out I plug in for 1/2 hour or 45 min to get it up around 70-80% or so and I'm good till I get home, even if I play games and stuff or whatever else.
Click to expand...
Click to collapse
Thanks for that. I think i'll have to do that from now on.

isn't it bad to charge the battery after it reaches one hundred percent?
Sent from my R800i using XDA

KindaUndisputed said:
isn't it bad to charge the battery after it reaches one hundred percent?
Sent from my R800i using XDA
Click to expand...
Click to collapse
No because the phone stops charging. It only accepts charging at 99.99% or lower basically.
Sent from my R800x using XDA

I used to charge my play about 2hours if the batt completly discharged..sometime at the whole night.depend when it is fully discharge.

So is it better to charge it for longer?
Sent from my R800i using XDA

anbu187 said:
I charge mine for two hours only
Click to expand...
Click to collapse
How long does it last for after that ?

How to do you charge your One X?

Just wondered how most people are charging there One X? Personally I always turn it off and allow it to charge until the light goes green. I've never charged it when it's still been turned on.

I've never switched off any of my android phone's whilst charging. What happens if you get a call? I also try to alternate between charging on my pc and the wall charger.

Maximus78 said:
I've never switched off any of my android phone's whilst charging. What happens if you get a call? I also try to alternate between charging on my pc and the wall charger.
Click to expand...
Click to collapse
Yeah fair statement, I had thought about that. I wasn't sure if it was bad to say plug the phone in at 11pm until 7am (8 hours) charging whilst it being turned on? I assumed if it was going to be plugged in say for that long that you should turn it off.

I just plug it in - went to bed on 80% last night but fair enough I'd hardly used the phone all day (standby battery life is incredible)

EddyOS said:
I just plug it in - went to bed on 80% last night but fair enough I'd hardly used the phone all day (standby battery life is incredible)
Click to expand...
Click to collapse
So you stuck it on charge just to boost that extra 20% yeah? How come you didn't just leave it until it was low?
Should of asked if people would partially charge it or if they always ensure its fully charged.. Can't amend the poll now though.

I was thinking about trying that - might do that tonight and see how it lasts...

I plug it in to a usb cable

i charge my hox every night on the wall charger while turned on. even if it has 80% left. i am to afraid that my battery level goes under 20% (i heard that falling under that level can damage batteries).

N3m3515 said:
i charge my hox every night on the wall charger while turned on. even if it has 80% left. i am to afraid that my battery level goes under 20% (i heard that falling under that level can damage batteries).
Click to expand...
Click to collapse
Where did you hear that? Mines dropped to 14% before and I then turned it off and charged it and the battery still seems fine. Wasn't aware you could damage the battery if it got too low...

I killed my battery first 2 charges - never have in the past but thought I would this time

I have always charged with the phone on, all my phones since way back having an analogue Nokia mobile and never had any battery issues. Only time I have ever switched my phones off is if I was getting on a plane or the battery got really low and didn't want it to go completely flat.

Just plug it in whenever. Modern li-poly batteries doesn't have memory and charge cycle life is based on full charges.
Part charges actually increase life due to low % cycling

tsleng said:
Just plug it in whenever. Modern li-poly batteries doesn't have memory and charge cycle life is based on full charges.
Part charges actually increase life due to low % cycling
Click to expand...
Click to collapse
Agreed.
One thing to note is that you should never let it completely drain the battery, the phone will switch itself off once the battery reaches critical level then it needs a charge. I'd recommend charging it when it reaches 5-15%.
Also I'd never leave it charging over night it interrupts the cycle, if I have to charge it over night I set an alarm to go of after a few hours and unplug it.

i have 3 or 4 charges from different makes-and only htc charges the quickest. the worst is usb cable and car charger. but due to usage i need to charge twice a day

Maximus78 said:
Also I'd never leave it charging over night it interrupts the cycle, if I have to charge it over night I set an alarm to go of after a few hours and unplug it.
Click to expand...
Click to collapse
Dude...
I always charge overnight - purely for convenience really.
Can you explain the above to me? I'm not sure what you mean by it interupts the cycle?
How does it effect the battery ?
Thanks alot
Dean

tsleng said:
Just plug it in whenever. Modern li-poly batteries doesn't have memory and charge cycle life is based on full charges.
Part charges actually increase life due to low % cycling
Click to expand...
Click to collapse
You are 100% right most modern phone battery’s don’t have memory any more so no need to worry about it, and no need to do full discharge and recharge cycles to maintain battery health, and if they do they normally tell you in warning labels or in instruction manuals, for example I recently bought a new shaver and it tells you to do a full discharge and then leave it on charge for at least 12 hours every 3 months to maintain battery life.

N3m3515 said:
i charge my hox every night on the wall charger while turned on. even if it has 80% left. i am to afraid that my battery level goes under 20% (i heard that falling under that level can damage batteries).
Click to expand...
Click to collapse
batteries have safety features built in so don't worry. What for you looks like 0-1% left - what android is showing you, might be actually 10-20% as seen internally by the battery.
Also, I have completely discharged my phone once, I simply left it at 1% and waited until it shut off. Then I charged to 100%. From then on, I charge whenever I want, phone is always ON.

Ebay 2m cable (the HTC one's length is a joke).

I use a charging cable.
My friend sticks it next to his head and uses his brainwaves to charge it.
Both seem to work fine.
Im really sorry for this post. I could not resist.

You guys are ridiculous. Just plug the phone in and it charges.
Sent from my HTC One X using XDA Premium HD app