yashsingh1/xdaforums huggingface dataset:
[EVO 4G General] Renegadez:
I did the first method charge til full unplg and re plug 10 times worked great for 2 days now horrid battery life again this battery deal is the worst making me want to ditch the EVO I need a phone for more then 6hrs @ a time. Whats the point of it doing all this cool stuff but you have this or that on cuze it kills the battery. Its past Annnoying to for me. Its a serious issue has anyone heard if a 3rd party is coming out with like a mini electric plant to keep this baby charged??
[EVO 4G General] thenags:
I did the 8hrs.. Then 10 times at 2 minutes a piece.. Then let it charge for a full hour while off... So I just mixed the 2 methods... So far I don't think I'm seeing any difference.
[EVO 4G General] jathomas0910:
9hrs 48mins in and just got battery warning....oh an bloo is running in the background all day
[EVO 4G General] stewie-droid:
Here is my battery performance....i think it's pretty pethetic.

Notice the device usage and cpu % comparing to yours.

What do you guys think ? What's wrong? I can get 10 to max 12 hrs with my usage. BTW this was running froyo 2.2.
[EVO 4G General] smonme:
ebuddy works wonders for me..
[EVO 4G General] jathomas0910:
10:54 so far....usually I only get about 4 to 5 hours....I'm still not impressed, I want at least 15hr usage...its said that my touch pro 2 out performs at the battery life....I do think there's something to this method because before like I said I was always running to the charger...
[EVO 4G General] mcjx:
Has anyone tried doing this method? Since EVO is CDMA-only (for the time being).

http://androidforums.com/support-tr...8062-battery-issue-hard-reset.html#post921034

edit: *snort* Just noticed this thread right under this one, ugh...
[EVO 4G General] jathomas0910:
Well my phone lasted 11hrs....but died at 6:15 on the dot
[EVO 4G General] jbryson16:
sorry bad post
[EVO 4G General] thenags:
I tried that tonight.. But after like 6hrs.. My time without service still went up
[EVO 4G General] hannsz:
So the end of my first day of testing with these settings:

24 hours 17 minutes and I had 12% left

Usage:

21 minutes voice

466 text messages

1 hr 30 min data/ftp/dropbox

~15 minutes wireless tether usage

The dip in the battery graph is where the phone soft rebooted when I tried to run "Juice Defender". Not sure why it soft rebooted, but Juice Defender works now.

Thoughts - settings could be a little more tweaked, but I'm comfortable with the email sync right now. The phone is obviously going to sleep appropriately.

SetCPU and the SetCPU widget are not showing the scaling working. At any percentage of battery life, the widget and program both show 1190mhz max/128mhz min. Do the profiles not work correctly?

I may lock the phone to ~768mhz for the next day or so (assuming SetCPU works right) If I need the additional processing power, I can always bump it up manually.

EDIT: Today's test I will run the battery life down to <15% again, but have TasKiller turned to not kill any tasks when screen is off, nor will I manually use the program.
[EVO 4G General] akarol:
Any sig difference with Juice Defender. I tried installing that with no luck.
[EVO 4G General] hannsz:
Couldn't tell you...seems like most of the things it does are already controlled by the OS or by my settings.

The most significant thing I did to improve battery life besides what HTC said was going into Settings > Networks > Mobile Networks and turning off "enable always on mobile data". My phone only syncs my K9 email when I turn the screen on, but that's quite often and not a big deal...

FWIW to anyone wondering, I cannot lock the CPU frequency to anything lower
[EVO 4G General] akarol:
I see. But doesn't that affect background-running programs such as Pandora, etc.?!
[EVO 4G General] hannsz:
No. Pandora, downloads, market downloads, etc... will continue to run with that setting off.
[EVO 4G General] Renegadez:
hannsz App for battery usage?

hannsz, what app is that graph made from that gives you all that usage info it looks awesome is it built into Droid? Thanks

Thanks akarol !
[EVO 4G General] akarol:
SystemPanel.
[EVO 4G General] Renegadez:
Ok I just completed the HTC battery method

1) Turn your device ON and Charge the device for 8 hours or more 2) Unplug the device and Turn the phone OFF and charge for 1 hour 3) Unplug the device Turn ON wait 2 minutes and Turn OFF and charge for another hour Your battery life should almost double

I booted it up and immediately downloaded system panel and it shows 97% on the battery OUCH!! so I made a 15 minute call then checked now it dropped to 94%. Show down pulled out the battery rebooted now showing 91% !!! this is horrid any ideas? Thanks
[EVO 4G General] hannsz:
The Li-Ion battery curve is the reason for the quick "draining" at the top of the battery life.

Take a look at my battery curve at the top of this page in my SystemPanel program.

It shows a drop from 100% to <90% in less than an hour. The curve then steadies out until the bottom of the battery circuit, where it drops rather quickly again.
[EVO 4G General] ausch30:
On my first phone (launch day 002) I originally got 5-6hrs on a charge. After a month+ of learning and tweaking the first phone, I got my replacement EVO the other day (003 device). I am now at 50% battery after 17 1/2hrs. I must say that I am both impressed with the tweaking suggestions by both users and HTC and disappointed that it required going through all I did in order to get decent battery life.
[EVO 4G General] Renegadez:
Ok i will keep an eye on it closely I have also completed this gsm prl change hopefuly that will make a huge difference

_______________________________________

press HOME, and bring up the dialer. Dial *#*#4636#*#* (Do not press "Call"). After a second, it should bring up the "Testing" menu.

Go into Phone Information, press MENU, and tap "select radio band." You should experience a Force Close, don't panic, this was supposed to happen. Scrolling down shows that the preferred network type is GSM auto (prl).

What this means is that even though you are connected to a CDMA network, your phone is trying to find a GSM network, preventing the radio from sleeping, and causing excessive battery drain.

Remedy this by tapping GSM auto (prl), and changing it to CDMA auto (prl).

Now your done, your TWS should drop dramatically, and you should experience much better battery life!

__________________________________________

Moderate use mostly checking some setting and a few txt messages I am down to 82% battery
[EVO 4G General] goldt:
Mine was already set to CDMA auto (prl)
[EVO 4G General] afliction523:
I did this today and it has worked amazingly. I hit update prl from the update menu in settings when I was done. I have rebooted multiple times to make sure it stays. I don’t know if the whole GSM search thing is true or not but I don’t care my battery is even better than when I had it all tweaked.
[EVO 4G General] b1indsided:
guys the key is in mobile data and wifi...if ur at home turn on wifi and it will last all day with...when ur on the go mobile data will eat away at ur battery even when not in use like if u have 2 auto syncs on even though they r not sycning all the time it will still drain ur battery to have that radio on..so if ur not usin it turn it off.try it for a day o promise u
[EVO 4G General] shawnathan9:
My battery works great

I'm reading all these posts about the poor battery life with the EVO and I've been there.

I'm going to try this method to see if it extends what battery life I currently get.

I'm running on a rooted EVO flashed w/ DamageControl 3.2.3 and used the DCconfig to set the profile to "battery saver".

I fully charged my EVO and then charged it while powered down for 15mins. booted back into recovery and "wiped" the battery stats. - Turned it back on and re-did the DCconfig to "battery saver" once more and rebooted to make sure I didn't muck anything up by wiping battery stats.

I unplugged my EVO around 1am pst and I was reading through threads on the tapatalk app for xda, searching through market place, and then put my EVO on the clock for the morning alarm.

I woke up and took the train to work and played with my EVO, txt msg, emails, and web browsing for 1hr. - At 11AM pst I went to lunch and youtube'd and sent a txt msg and called my gf. - Roughly around 80%-70% at this point.

At the end of the day, I took the same train back for an hour and repeated my routine. Came home and used Pandora while I cleaned my kitchen.. got on the puter and read xda for any updates on the new DC rom...

Around 8pm pst my EVO said it was around 20% or less. and then i charged it again.

I've roughly got around 19-20hrs of usage from one charge.

Maybe the key here is to do this HTC method, wipe battery stats in recovery, and have a ROM that will dedicate it's process to conserve your battery.

It's just so frustrating being where you guys are with the EVO battery because I felt the same way until I updated to this ROM and did a battery stats wipe.

*the only time before this where my battery just sucked it big time was when I was on a long 1hr call with Asus just fight over and RMA that their rep just completely failed to offer on a ac adapter. - Crooks!

That completely dwindled my battery life from 50% to nearly 30% in 1hr. - Of course, I never really talk that much on the phone but this was an exception.
[EVO 4G General] Fif23:
Does this work on HD2 as well ?

Should I run the same procedure on each of my batteries once ?
[EVO 4G General] twin001:
I did the method shown by the OP with not much increase in batter performance. I did however recharge the phone then wipe battery stats in recovery and I've seen a huge increase. I'm up to ~20 hours and I still have 46% left. I've been texting and surfing the net quite a bit. I'm running Damage 3.2.3 with EnamoRED theme.
[EVO 4G General] stewie-droid:
Systempanel screenshots please!
[EVO 4G General] stewie-droid:
All this mumbo jumbo HTC suggested

does not work!!!

At least not on my phone. Wiping battery statistics confuses me even more as others state that battery life improved a week or two of use and no ROM flashes, therefore that contradicts wiping battery stats. Unless someone can prove otherwise.

However i believe i have found the problem and solution to short battery life. The issue is with kernel source code. I ran htc kernel and battery life no matter what trick htc and other suggested on forums including drastic changes helped but marginally and obviously was not a solution to the problem. I flashed new custom kernel from Hero dev and issue with battery whows seems to be improving. Also drastic drops in first 2 hours no longer occurs or at least slowed down. Still testing but looks very very promising.

There are other benefits in having custom kernel like 5x faster boot time, no perflock therefore setcpu works at boot and does not need to be manually disabled as well as lower voltages, lower interval of mhz speed sets. Love cutom kernel and custom roms. Running Baked Snack v9.6 and love it.

I must say QA in HTC is horrible. Why does open source community needs to spend more a month on fixing htc source code issues is beyond me but i'm glad we got geniuses here to do that.
[EVO 4G General] b1indsided:
hey twin001 do u have anything set to auto sync?
[EVO 4G General] shawnathan9:
I don't have app to gauge my battery performance but I can vouche that Ive been running music for about 1.5 hrs through the commute to and from work today...web browsing for 1.5 hrs... made several calls....sent 5-6 mms... randomly browsing xda on breaks and in bathroom..kekeke.

I had my phone since 1am unplugged.

Heres a screened of my battery info..art. I don't have anything else.
[EVO 4G General] kingofslackerz:
Did this last night. Unplugged at around 5 am, charged for another 30 minutes around 7am.

The phone has been up for 5 hrs 33 min.

Currently at 78%.

10-15 minutes of browsing

4g was on for 2 minutes to run a couple speed tests

on XDA for 5 minutes

ATK auto kill is on safe with security at low. 265 mem full with kills.

Widgets - switcherpro and a clock widget

Stock Rom running launcher pro

CDMA prl set

39% Cell

33% Idle

18% System

6% Display

2% Speed Test

2% Internet
[EVO 4G General] manooti:
anyone notice a more consistent reception with this? my bars dont fluctuate from 1 to full bars so randomly anymore. its more steady.
[EVO 4G General] kingofslackerz:
Watch were you hold the phone, mine is real sensitive if i'm covering up the antenna, it will drop 3-4 bars.

I'm on day two after doing this. Yesterday was good, the phone lasted all day. Looking at system panel I was at 47-50% at 11:30 last night.

It charged regularly all night, what's odd is I unplugged and put the phone in my pocket this morning, system panel shows my device and cpu usage very high for about 10 minutes almost. CPU usage is at 65-75%, device usage is at 100%.

And now I sit here at work hour and half after unplugging, barely touched the phone and I'm at 89%.
[EVO 4G General] manooti:
i know about the sensitivity of the antenna up top. i have the phone laying flat on desk right next to window and it always gave me fluctuating bars from nothing to full and back to nothing while just sitting there watching it. sprint said its normal in my home but it did it everywhere.

after the battery power cycle its more consistent. i hope its not a defective phone or a defective battery :(
[EVO 4G General] LAYGO:
I just ordered the spare batteries from ebay. Would I need to calibrate them as well?

I spent about 2hrs with some heavy wifi tethering and it dropped to 60%. I guess . . .
[EVO 4G General] X-Kenshin-X:
will try! defenitely
[EVO 4G General] kingofslackerz:
There's a guy that tests all these batteries, 90% from ebay were fake. If I can find that link i'll post.
[EVO 4G General] manooti:
i was just about to click buy. good thing you posted
[EVO 4G General] xlGmanlx:
i am giving this a try, because i can't stand having my battery drop like 3% as soon as i take it off the charger. Could be a bad reading, but still. I would like to get a full day of email sync and work out of the battery before i decide i have to pick up another one. If this does the trick i am ok with charging every night
[EVO 4G General] heystek:
Awhile ago I stumbled across a program call Networks in the Market which does the exact same thing, just simpler.
[EVO 4G General] Malecite:
Can confirm this did something meaningful for my desire, not sure how the hell to quantify it.

I've had the phone for about 1.5 weeks and using cyanogens mod I usually got about a days worth of battery with a solid 1.5 - 2 hours of using the mixzing media players and web browsing on the bus, plus heavy texting. Today my battery is at around 75% with the same routine which is a MASSIVE improvement. This has totally changed the phone for me.
[EVO 4G General] zigson:
Opposite effect for me. Following this procedure I'm losing approx 20% per hour, and I guess there's no way to undo it. So proceed with caution!
[EVO 4G General] v_lestat:
Wow guys this is old stuff... old life this was found out right after the evo came out. How is this even a discussion.

Not to mention the fact the the a few posts up clearly states he made and app called 'networks' and can be found on the market. And i have used it since i got my ebo.

And you are not loosing 20% more battery since switching. You did somethink else and may verywell have set something wrong.

Go download the app Network and use it
[EVO 4G General] ekokinex:
The battery fix worked. I hope HTC has an actual fix in the works for this, having to do this every month would be ridiculous.
[EVO 4G General] gnolihp:
I wonder why need to charge full for 8 hours, then for subsequent charge is one hour :-/. I charge my phone for about 3 hours, the light is already green, for subsequent charge is about 20 mins ...

I just did the process, and waiting to see any good or bad result currently. so far, it's the same, drop to 99% after half an hour idle time ... still monitoring.
[EVO 4G General] JG-1:
every month..you don't have to do this daily?
[EVO 4G General] JG-1:
Just did this "htc fix" and my battery still dropped to 94% in 5 minutes....
[EVO 4G General] exadeci:
I think it's based on the Memory effect and the thing here is to try to "reset" the point where the battery says "I'm fully charged"

Let say that when the battery has been charged for 3hours led goes green like if it was stuck on 80% and say 100% and the charger only give power to the turned on cellphone and not anymore to the battery but the battery might not be charged to full of it's capacity. So with this "guide" they make you try to charge more the battery than the memory effect has made it think it could charge.

So it should be fixed after following this guide one or more times but not every day/ month but it could be useful once in a while.

http://en.wikipedia.org/wiki/Memory_effect

That's what I think and it might not be far from truth but who know ....;)
[EVO 4G General] sombdy:
Lithiums do not suffer from the memory effect. Only Ni-Cads. Read up on rechargeable batteries on Wikipedia.
[EVO 4G General] exadeci:
They can but it takes years but let say that HTC shipped batterys with false max charge then it might do it.
[EVO 4G General] dacib:
Go download the app Network and use it[/QUOTE]

How do you use this app?
[EVO 4G General] JohnReaper:
Just wanted to say that i tried this out this morning and it has been 12 hours now and i am still almost at full battery. This is a big change because from the time i got this phone when i would get home from work about this time i would have to plug in because i was in the yellow or red. So i want to give a BIG thank you to the person that post this.

Thanks

John Reaper
[EVO 4G General] ext23:
man, i hope this helps to improve my battery...it's the only thing i don't like about my desire at the moment! although i half-suspect my bad battery life is also due to the network i'm on (softbank japan).
[EVO 4G General] Systemfraud:
I just tried this out and was completely unsuccessful. I unplugged my phone at 5:18 it is now 5:35 and I'm at 91% battery. All I did was make a few texts and bam. 9% battery down in 20 minutes from literally 4 texts...
[EVO 4G General] Systemfraud:
I'm still testing..will report back here..
[EVO 4G General] ext23:
this is insane! i tried this out overnight, and after an hour and a half of light usage my phone is still on 100%! at this rate my battery will live FOREVER.

usually i would be down around 95% by now. yesterday in particular my battery was draining like a mofo and i was ready to throw my desire in a bin and piss on it.

dunno what kind of fsked-up voodoo heathen witchcraft trickery this is but i love it. thanks to the OP and the bizarre methods of the HTC PR department!
[EVO 4G General] akarol:
Prove it! I'll believe it when I see it.
[EVO 4G General] ext23:
yesterday worked really well. the phone was going like a champion. but today...it's back to chewing up 6 or 7% per hour just sitting on my desk.

i THINK it's mostly to do with my poor reception in my apartment. yesterday i was at my desk at work but today i'm in my apartment, and cell standby is reporting 30% of usage.
[EVO 4G General] diddy0071:
bump bump bump
[EVO 4G General] bludragon742:
I call shenanigans on this. I tried it a couple weeks ago and my battery is about the same as it was before which is still pretty good.
[EVO 4G General] tsunami0ne:
Another way to improve battery life is to not use Facebook at all. Even though I set everything in Facebook to manual sync, when I shut down my Facebook account, my EVO immediately threw a Facebook error saying it could not login....

Ever since then, I get about 30% more battery throughout the day. I think HTC Sense secretly does Facebook related network calls in the background even with auto-sync turned off.
[EVO 4G General] gamerspowers:
wooow, thanks so mutch. I was thinking of returning my phone to the shop but this tip made my battery last a whole day , something it had never done before! really thank you (and htc offcourse)
[EVO 4G General] mgb95:
external charger from ebay

I purchased one of the cheap batteries and external chargers off of eBay. I was astounded by how much better battery life was from my eBay battery than my stock battery. Then I noticed that the eBay battery took much longer to charge in the external battery charger than the stock battery took in the Evo.

Rather adventurously/recklessly, I tried charging the stock battery in the external battery charger. Again, the charging took significantly longer, but resulted in much longer battery. When I tried charging the eBay battery in the Evo (as opposed to charging it in the external battery charger), I experienced the same poor battery life as I had with the stock battery.

I have no idea if this is bad for the batteries (I would note that the external battery charger does change lights and appears to stop charging when the battery has completed charging), but I can attest that I experienced much better battery life when charging from the external battery charger than when charging a battery inside the Evo.

It would be very nice, however, to experience the same full charge inside the Evo to obviate the need to exchange batteries on a regular basis.
[EVO 4G General] robertandrews:
So should I do this with a new phone (HTC Desire) at first charge, or only after some time of ownership?
[EVO 4G General] MSmith1:
I've mentioned this several times in other battery threads but yes, charging your battery in an external charger will provide MUCH MUCH MUCH better battery life. I charge both my stock and 3500 battery in an external charger and the difference between in-evo charging and external charging is NIGHT AND DAY. It is sad but, if you charge your battery in the evo you are cheating yourself out of battery life. As I've said in one of the other battery threads, I suspect that a lot of the "terrible battery life" complaints about the evo that we see everywhere are due to the fact that the evo can't charge a battery properly. Take that battery out of the evo and charge it in an external charger and bam, great battery life. Again, sad, but true.
[EVO 4G General] -shift-:
I can attest to this. MSmith1 recommended it to me a while ago, and I ran extensive tests with the stock, 1750, & 1800mah batteries. Like he said, night and day. Try it out. I went from ~15 hours (my regular usage) to a consistent 20.

Swyped from my EVO via the XDA app
[EVO 4G General] autoleno:
I had the same results. Having been a heavy Pre user since it launched, it made me nervous, thinking I was heading down same road.

That said, it seems like there is a fast drop off in the 90s and maybe even the 80s but then the battery has seemed to last longer since I tried the abbreviated on/off/on/off charging tip. Haven't had the block of time to do the HTC recommended approach yet.

I want to say I had my regular use on the phone yesterday and I got almost 13 hours on one charge. Crazy stuff. We'll see if it holds & continues.
[EVO 4G General] Azhturion:
It didn't work for my HD2 :(
[EVO 4G General] jkc120:
So is this a problem with the phone's charging circuitry? Is the HTC Incredible affected?

I'm wondering if just using an external power charger would fix this, assuming it fully charges it properly.

I guess I can try this on my HTC Incredible, but if I have to do this every night, what a PITA. HTC should really address this (though if it's a hardware thing, I guess there's not much they can do. But you'd think they would address it so FUTURE phones aren't having this same problem).
[XPERIA X10 Android Development] Fuzalert2k:
Timescape seems a lot stable as set as the default launcher with root than it was before.

How does it work for you guys?

Does anyone know how I can upgrade timescape to the one in R2XXXX firmware?

I hear that version allows you to change the theme, and is mournful stable.