Hello everyone,
I just rooted my phone yesterday. And now my battery is drining very fast ..before rooting its 1% in 6-7 min ......now it is draining 1% in 3-4 min. Can any one help me plzz
dchgroup said:
Hello everyone,
I just rooted my phone yesterday. And now my battery is drining very fast ..before rooting its 1% in 6-7 min ......now it is draining 1% in 3-4 min. Can any one help me plzz
Click to expand...
Click to collapse
Just rooting the phone is unlikely to do this, have a look at what else you installed recently.
dchgroup said:
Hello everyone,
I just rooted my phone yesterday. And now my battery is draining very fast ..before rooting its 1% in 6-7 min ......now it is draining 1% in 3-4 min. Can any one help me plzz
Click to expand...
Click to collapse
Before rooting the draining was around 1% every 6-7 minutes? Thats doesnt seem right. Something was wrong before the root.
1% every 6-7minutes equals to around 10hours battery life. Although it depends on the usage, I still think that is something was wrong already.
Problem solved ....i did few complete drain then charge to 100% now battery seems to back normal..thank u everyone who replied to this post.
dchgroup said:
Problem solved ....i did few complete drain then charge to 100% now battery seems to back normal..thank u everyone who replied to this post.
Click to expand...
Click to collapse
Awesome, and thank you for posting back.
dchgroup said:
Problem solved ....i did few complete drain then charge to 100% now battery seems to back normal..thank u everyone who replied to this post.
Click to expand...
Click to collapse
Don't forget Li-ion batteries like in our Mega, need to be above their 0% charge(3.3Volts) at ALL times. Do a full discarge(100%-0%-100%) once a month.
So try to keep the phone above 20-30% all times and recharge to 80-90% when possible. :good:
Google search on Li-ion battery myths/tips:
Li-ion battery myths/tips
help to root
Can i have the link on the latest tutorial on how to root mega 6.3 LTE?
Thanks!
dchgroup said:
Hello everyone,
I just rooted my phone yesterday. And now my battery is drining very fast ..before rooting its 1% in 6-7 min ......now it is draining 1% in 3-4 min. Can any one help me plzz
Click to expand...
Click to collapse
mpinlac said:
Can i have the link on the latest tutorial on how to root mega 6.3 LTE?
Thanks!
Click to expand...
Click to collapse
That will be in the thread titled "[ROOT] Galaxy Mega 6.3 - GT-I9205 and GT-I9200" in the Galaxy Mega Android Development forum.
SOLUTION:
dchgroup said:
Hello everyone,
I just rooted my phone yesterday. And now my battery is drining very fast ..before rooting its 1% in 6-7 min ......now it is draining 1% in 3-4 min. Can any one help me plzz
Click to expand...
Click to collapse
I had stopped using my Galaxy Mega for 6 months when this happened to me. Turns out it's pretty ****ing popular among Galaxy S devices but this guide fixes it and tells you EXACTLY what is wrong - I'm not allowed to post links but it's an article on the TECHSPLURGE so if you google it im sure it'll come up.
You're welcome :good:
Battery drain has nothing to do with rooting. Period.
Sent from my GT-I9205 using Tapatalk
Related
Hi
I have problems with my xperia sola
I went to home after church and write a message to my friend
I had 40% of energy, suddenly from 40% became 0% and phone turned off
After turn on, i had 7% of energy
Temperature was +5*C
Please help, it isn't normal xD
SandeQPL said:
Hi
I have problems with my xperia sola
I went to home after church and write a message to my friend
I had 40% of energy, suddenly from 40% became 0% and phone turned off
After turn on, i had 7% of energy
Temperature was +5*C
Please help, it isn't normal xD
Click to expand...
Click to collapse
Download any free Battery calibrator you can find, from Google store.
it will most probably fix your wrong battery readings.
ps. you may need to have a rooted device for the calibrators to work,but i think (i'm not sure)there is one (don't remember the name) that works with an unrooted phone.
Yes battery calibrator neeeds superuser permissions
Sent from my MT27i using xda premium
I have one more question for you
I installed app named "Battery Doctor"
And in this app, after the normal charge is written:
Trickle Charge
Maintain the liquidity of electrons to extend battery life
And the question is
Trickle Charge really extend the battery life or not?
Second question
I blocked screen,but on the stats it looks,like screen was active for 25 mins, but screen was still locked
Is there any way to check what app cause activity of screen?
Sygnał sieci komórkowej=Cellular signal
Aktywność=Activity
Ekran włączony= Screen on
Ładowanie=Charging
SandeQPL said:
I have one more question for you
I installed app named "Battery Doctor"
And in this app, after the normal charge is written:
Trickle Charge
Maintain the liquidity of electrons to extend battery life
And the question is
Trickle Charge really extend the battery life or not?
Second question
I blocked screen,but on the stats it looks,like screen was active for 25 mins, but screen was still locked
Is there any way to check what app cause activity of screen?
Sygnał sieci komórkowej=Cellular signal
Aktywność=Activity
Ekran włączony= Screen on
Ładowanie=Charging
Click to expand...
Click to collapse
Do you really think that you can "MAINTAIN LIQUIDITY OF ELECTRONS" with an app????????
No no, in this app is section "battery charge" and there are 3 steps - quick charge - 0-80% continuos charge - 80-100% and this trickle charge - 30 min of charging after 100%
And in my question I mean is this 30 min of charging after 100% really extend the battery life, not this app xD
The problem with battery backs
Today i have 68% battery then 0 % after turnon, 20%
It's after calibration
What may i do?
SandeQPL said:
The problem with battery backs
Today i have 68% battery then 0 % after turnon, 20%
It's after calibration
What may i do?
Click to expand...
Click to collapse
just try clearing battery stats via CWM advance menu........
@[email protected] said:
just try clearing battery stats via CWM advance menu........
Click to expand...
Click to collapse
What is CWM?
SandeQPL said:
What is CWM?
Click to expand...
Click to collapse
are you rooted????
CWM is used for various purpose.... one of the main is for installing custom ROM's
@[email protected] said:
are you rooted????
CWM is used for various purpose.... one of the main is for installing custom ROM's
Click to expand...
Click to collapse
Yes, i am rooted
How can i get it?
Sorry for too much questions
I'm totally noob in technical things of Android
SandeQPL said:
Yes, i am rooted
How can i get it?
Sorry for too much questions
I'm totally noob in technical things of Android
Click to expand...
Click to collapse
LINK to CWM for locked bootloader.........
hope you are on locked bootloader........
@[email protected] said:
LINK to CWM for locked bootloader.........
hope you are on locked bootloader........
Click to expand...
Click to collapse
OK, i have CWM based recovery on phone
I must press Wipe Battery Stats?
SandeQPL said:
OK, i have CWM based recovery on phone
I must press Wipe Battery Stats?
Click to expand...
Click to collapse
yes
@[email protected] said:
yes
Click to expand...
Click to collapse
Ok, i do it
Should i do something more?
hmm, problems with battery returned, i've 31% and after one minute, i have 0%... i want only phone to my grandma..., i was in home...
What should i do?
Umm Could anyone help me in this problem?
SandeQPL said:
hmm, problems with battery returned, i've 31% and after one minute, i have 0%... i want only phone to my grandma..., i was in home...
What should i do?
Click to expand...
Click to collapse
So... Did u find anything to help the battery issue..?? I am suffering frm the same!
Hi.
I have used lots of roms to find out what the problem was but did not solved it.
My battery drains from 100 to 85 very very fast.
I mean 10 percent in 1 hour :crying:
No matter what kernel or rom i use.
Then again it wont go to 100 percent its like 96-97.
Is there a fix ?
I already bought a new battery and a new charger.
Same results with the charger of my wife s3 mini.
anyone have a suggestion before i trow it away and buy a note 2 ?
toeterbaas said:
Hi.
I have used lots of roms to find out what the problem was but did not solved it.
My battery drains from 100 to 85 very very fast.
I mean 10 percent in 1 hour :crying:
No matter what kernel or rom i use.
Then again it wont go to 100 percent its like 96-97.
Is there a fix ?
I already bought a new battery and a new charger.
Same results with the charger of my wife s3 mini.
anyone have a suggestion before i trow it away and buy a note 2 ?
Click to expand...
Click to collapse
What are you doing in that one hour? Is it idle, or are you doing stuff?
krs360 said:
What are you doing in that one hour? Is it idle, or are you doing stuff?
Click to expand...
Click to collapse
Its idle as i am on wifi and mobile date it both suck..
Nothing strange to see with better battery stats.
EDIT : i pulled the battery for 10 minutes and charged it with phone off.
It looks like its not losing percents now,
The only problem is why it not goes to 100 percent.
I installed the rom this morning.
Does it automaticly goes to 100 after a few charges?
And it started to drain again.
Anyone have a clue ?
toeterbaas said:
Its idle as i am on wifi and mobile date it both suck..
Nothing strange to see with better battery stats.
EDIT : i pulled the battery for 10 minutes and charged it with phone off.
It looks like its not losing percents now,
The only problem is why it not goes to 100 percent.
I installed the rom this morning.
Does it automaticly goes to 100 after a few charges?
Click to expand...
Click to collapse
Check Your Battery Stats. .. download a battery stats app and check which app is causing the most drainage. .. There was a media scanner bug sometime back. . Maybe It's That. . If It Is, There Are Fixes For It Here. Good luck :thumbup:
Sent from my GT-I9300 using Tapatalk 2
galaxys3lover said:
Check Your Battery Stats. .. download a battery stats app and check which app is causing the most drainage. .. There was a media scanner bug sometime back. . Maybe It's That. . If It Is, There Are Fixes For It Here. Good luck :thumbup:
Sent from my GT-I9300 using Tapatalk 2
Click to expand...
Click to collapse
Thanks for your help.
Is battery stats plus any good?
Any idea why it not charge to 100 percent?
toeterbaas said:
Thanks for your help.
Is battery stats plus any good?
Any idea why it not charge to 100 percent?
Click to expand...
Click to collapse
Try BetterBatteryStats or GSAM. BBS is better but not free. I use this. i have a widget on my homescreen at all times.
You may just need to go through a full charge cycle to get it to 100%. It's just that the new ROM thinks that 100% is 97%. A couple of charges / drains will sort it.
rootSU said:
Try BetterBatteryStats or GSAM. BBS is better but not free. I use this. i have a widget on my homescreen at all times.
You may just need to go through a full charge cycle to get it to 100%. It's just that the new ROM thinks that 100% is 97%. A couple of charges / drains will sort it.
Click to expand...
Click to collapse
Thanks for the answer.
I removed my sd card now and see if it will help.
Thanks for the answer for the 100 percent :good::good:
Solved!
I flashed the original rom with a different version of odin then i used before.
Its seems to be very stable now the battery.
The only problem is i dont want to flash custom rom because im affraid it will start again!
Thanks for thinking with me guyz ! :good:
Hello all
I am using Mega 5.8 for 15 days now, everything is great. . Battery too is fine works for the whole day and some more but I find it strange that after reaching 20% the battery dies within minutes and phone shuts down. I thought that might be due to new battery but after 10+ recharge cycles this behavior have not changed.
Can anyone confirm that its a common thing with Mega 5.8 or there's some issue with my device.
Also while we are at it any idea when we might get 4.3 update for Mega?
Thankd
Sent from my GT-I9152 using xda app-developers app
Ditto !
I have the same problem . battery reaches 15% and then dies off in no time... So i take my battery as 85% generally . Not sure whats going wrong . But seems like firmware problem . Guys any solution ?
gauravxda said:
I have the same problem . battery reaches 15% and then dies off in no time... So i take my battery as 85% generally . Not sure whats going wrong . But seems like firmware problem . Guys any solution ?
Click to expand...
Click to collapse
If you have root you can use Battery calibration app from the Play store.
gx3k said:
If you have root you can use Battery calibration app from the Play store.
Click to expand...
Click to collapse
Thanks for the heads up gx3k , but just to clarify i am not new to rooting . Have galaxy S2 which is full blown modified .
I downloaded battery calib app and deleted stats like 10 times...tried to manually delete the stats bin folder....but nothing has worked . I feel the culprit is the rom .
Haven't rooted the phone but don't believe this to be a calibration issue.
May be its firmware but how to confirm unless we get an update.
Sent from my GT-I9152 using xda app-developers app
Same problem with me
Just try this . One you are in middle of your discharge like around 50% just remove the battery for 20 secs and put it back . You will see in battery you have already lost 10-12% of battery . I think this is the case of either wrong battery reporting or bad batteries. Just have to wait for a custom rom to cross check this .
GalaxyMega 5.8 battery life
Same thing here. Already tried calibration. Didn't help.
Was charging it. Removed it from the charger at 60%, I removed the battery and put it back in. The battery % then showed 74%.
fredbvalani said:
Same thing here. Already tried calibration. Didn't help.
Was charging it. Removed it from the charger at 60%, I removed the battery and put it back in. The battery % then showed 74%.
Click to expand...
Click to collapse
Yes definitely there is a problem. Battery was at 31% then I removed battery and put it back. It dropped to 8%. had to connect it to charger.....
Have anybody tried the latest firmware for October if the battery issue is solved?
i've updated my galaxy mega 5.8 duos to latest firmware,still not fixed.. :crying:
RobyGalaxy said:
i've updated my galaxy mega 5.8 duos to latest firmware,still not fixed.. :crying:
Click to expand...
Click to collapse
Very few users complain about this, maybe because there are only a few of us or it is not an issue as very seldom users remove the battery?
As for me when the level goes between 20-30% which is usually on the 3rd day I recharge the battery.
Indian Devil said:
Hello all
I am using Mega 5.8 for 15 days now, everything is great. . Battery too is fine works for the whole day and some more but I find it strange that after reaching 20% the battery dies within minutes and phone shuts down. I thought that might be due to new battery but after 10+ recharge cycles this behavior have not changed.
Can anyone confirm that its a common thing with Mega 5.8 or there's some issue with my device.
Also while we are at it any idea when we might get 4.3 update for Mega?
Thankd
Sent from my GT-I9152 using xda app-developers app
Click to expand...
Click to collapse
Dude Battery callibration could help you .. same condition was wid me .. i callibrated n now my battery is MEGA now
1.Root ur fone
2.drain your battery to zero
3.short all your battery terminals to make sure your battery is totally dead..
4.then charge your battery to 100%
5.n press CALLIBRATE from ur callibration software.
i will like to tell you that some processes drain ur battery very rapidly ,, i removed some apps n processes and now battery lasts,
so i will advise u too flash ur fone completly takin ur data backedUp..
aakashdahake said:
Dude Battery callibration could help you .. same condition was wid me .. i callibrated n now my battery is MEGA now
1.Root ur fone
2.drain your battery to zero
3.short all your battery terminals to make sure your battery is totally dead..
4.then charge your battery to 100%
5.n press CALLIBRATE from ur callibration software.
i will like to tell you that some processes drain ur battery very rapidly ,, i removed some apps n processes and now battery lasts,
so i will advise u too flash ur fone completly takin ur data backedUp..
Click to expand...
Click to collapse
Whatever you do "DO NOT SHORT YOUR BATTERY TERMINALS UNDER ANY CIRCUMSTANCE" That's a fire hazard. Lithium Ion batteries can generate massive heat very quickly and have been known to explode on occasions.
Practise good battery management by charging your battery whenever possible and keep it on charge for as long as you can. This will condition it to give maximum performance.
Remember you can't get a battery to give any more power than it has from the charge you give it.
Calibration does nothing to the battery it only allows the software to monitor more accurately.
Lithium Ion batteries should never be allowed to discharge below a preset level as they will then die and will not charge again
lol im about to create a thread about this issue, i thought its only me who experienced this issue,, i've encounter this problem as well,, everytime the battery reach the 15% or the low battery warning, it drains very fast from 15 to 1% it just like about 2 minutes then my phone shuts off due to very low battery level
oh yea,, try the *#0228# it shows the real battery %. in my experience,, from 40% battery suddenly drop to 18%. btw for the calibration apps from the playstore, it just delete your batterystats.bin which have no benefit at all. anyone who encounter this problem please share your experience
I installed Battery Notifier and adjusted the low battery alarm at 25% . It is just a workaround but it serves the purpose.
Sent from my X716S using xda app-developers app
bongski55 said:
Very few users complain about this, maybe because there are only a few of us or it is not an issue as very seldom users remove the battery?
As for me when the level goes between 20-30% which is usually on the 3rd day I recharge the battery.
Click to expand...
Click to collapse
so.. what do you think? is this a software issue or a hardware issue?? cuz if its hardware issue, my mega and the battery still under warranty. iam confused is it really US who encounter this issue or the others didnt realize it cuz they never drain their battery until 15%.
aakashdahake said:
Dude Battery callibration could help you .. same condition was wid me .. i callibrated n now my battery is MEGA now
1.Root ur fone
2.drain your battery to zero
3.short all your battery terminals to make sure your battery is totally dead..
4.then charge your battery to 100%
5.n press CALLIBRATE from ur callibration software.
i will like to tell you that some processes drain ur battery very rapidly ,, i removed some apps n processes and now battery lasts,
so i will advise u too flash ur fone completly takin ur data backedUp..
Click to expand...
Click to collapse
okay our issue is NOT about BATTERY LIFE, but about BATTERY PERCENTAGE,, DUDE.
in this review the reviewer encounter the same issue like us
"A couple of times we experienced a sharp dip in battery life when the levels went below 20 percent"
nezt94 said:
so.. what do you think? is this a software issue or a hardware issue?? cuz if its hardware issue, my mega and the battery still under warranty. iam confused is it really US who encounter this issue or the others didnt realize it cuz they never drain their battery until 15%.
Click to expand...
Click to collapse
Hardware or software I don't really know.
As I use the mega 5.8 as my daily phone I see to it that I dont go below 20%. And evry other day or a maximum of 3 days I always recharge my phone. Perhaps other users have a similar routine so very few if any, complain about the issue on this thread.
bongski55 said:
Hardware or software I don't really know.
As I use the mega 5.8 as my daily phone I see to it that I dont go below 20%. And evry other day or a maximum of 3 days I always recharge my phone. Perhaps other users have a similar routine so very few if any, complain about the issue on this thread.
Click to expand...
Click to collapse
yea, i think thats why only few people who noticed this issue, they rarely use their phone below 20%. btw i just post a new thread in samsung developers forum, dont know where to report this issue so i post it there lol
i've try calibrating the battery, no differrnce at all. oh man , i wish samsung realized this issue
Hey guys these days I am facing a battery drainage!! Stock Rom stock kernel locked bootloader!! In 6 hours from 100% went to 89 why???? All apps were closed! Itsupposed to be in deep sleep!!!
Theliakos said:
Hey guys these days I am facing a battery drainage!! Stock Rom stock kernel locked bootloader!! In 6 hours from 100% went to 89 why???? All apps were closed! Itsupposed to be in deep sleep!!!
Click to expand...
Click to collapse
that's 11% in 6 hours, that's really good! Even though it looks in deep sleep, phones connect to signal, use their antenna, sync with servers etc several times a day without telling you. If your phone only lost 11% every 6 hours, you could go for more than 50 hours before charging, that's alright I would say.
awkXda said:
that's 11% in 6 hours, that's really good! Even though it looks in deep sleep, phones connect to signal, use their antenna, sync with servers etc several times a day without telling you. If your phone only lost 11% every 6 hours, you could go for more than 50 hours before charging, that's alright I would say.
Click to expand...
Click to collapse
its in airoplane mode\!!! i charge it all night then i unplug it it has 100% i go to school after 6 hours i used to have still 100% now i have 89 ! @awkXda
Theliakos said:
its in airoplane mode\!!! i charge it all night then i unplug it it has 100% i go to school after 6 hours i used to have still 100% now i have 89 ! @awkXda
Click to expand...
Click to collapse
If u have root download greenify
I am back. Ignore forum signature 1st line.
Theliakos said:
its in airoplane mode\!!! i charge it all night then i unplug it it has 100% i go to school after 6 hours i used to have still 100% now i have 89 ! @awkXda
Click to expand...
Click to collapse
Wtf my Xperia u battery drain like hell from 50% to 20%in 4 hour its really piss me off im using stock rom b.1.100
Sent from my ST25i using xda app-developers app
dara007_168 said:
Wtf my Xperia u battery drain like hell from 50% to 20%in 4 hour its really piss me off im using stock rom b.1.100
Sent from my ST25i using xda app-developers app
Click to expand...
Click to collapse
i am going to reflash everything ! dlete everything !! see if it works |!!! it supposed to work without greenify ! i am using latest jb btw
Indentify what cause the drain.
Get Wakelock Detector and see if there an app that cause wakelocks.
I get about 1% per hour drain standby with my XP, stock ROM and kernel,, with the help of STAMINA mode, Greenify, Disable Service, snd 98screenstate_script, but you need root for those except STAMINA mode, and init.d support for the script.
ChikeD said:
Indentify what cause the drain.
Get Wakelock Detector and see if there an app that cause wakelocks.
I get about 1% per hour drain standby with my XP, stock ROM and kernel,, with the help of STAMINA mode, Greenify, Disable Service, snd 98screenstate_script, but you need root for those except STAMINA mode, and init.d support for the script.
Click to expand...
Click to collapse
ok man thanks but i get 100% for more than 5 hours in airoplane mode no init.d scripts nothing everything stock ! why is thiw happening ??
Theliakos said:
ok man thanks but i get 100% for more than 5 hours in airoplane mode no init.d scripts nothing everything stock ! why is thiw happening ??
Click to expand...
Click to collapse
Look at battery stats what take most, and as I said get Wakelock Detector to see what wake it up or prevent deep sleep.
Also get CPU Spy Plus and see how much time CPU Spy Plus spend in each frequency.
ChikeD said:
Look at battery stats what take most, and as I said get Wakelock Detector to see what wake it up or prevent deep sleep.
Also get CPU Spy Plus and see how much time CPU Spy Plus spend in each frequency.
Click to expand...
Click to collapse
i bought my phone before two months ??? coulb it be the bbattery ??
Theliakos said:
i bought my phone before two months ??? coulb it be the bbattery ??
Click to expand...
Click to collapse
I am sure you have installed software too during this month.
Could be the battery, but my guess it's software. I' know software that drain's battery fast, nto like yours but 50 percent for the night.
The stock without any tweaks takes about 2% per hour standby with wifi on and facebook/viber.yahoo messanger in background and STAMINA on, but U don't have official STAMINA does it?
Its possible for me to get 1% battery drain over the night. I use greenify and Honami Moonwalker rom. Sometimes it does not drain at all. I turn on airplane mode and stamina mode also.
I am back. Ignore forum signature 1st line.
ChikeD said:
I am sure you have installed software too during this month.
Could be the battery, but my guess it's software. I' know software that drain's battery fast, nto like yours but 50 percent for the night.
The stock without any tweaks takes about 2% per hour standby with wifi on and facebook/viber.yahoo messanger in background and STAMINA on, but U don't have official STAMINA does it?
Click to expand...
Click to collapse
so i downgraded the firmware to ics ! let it for 30 minutew then update via seus ! like magic it was fixed i spent 8 hours with couple calls at 100% also the led in oflline charging wasnt working flashed alot of timew with flashtool but nohing when flashed with seus all fixed!!! i beleive that seus does a full wipe !!
@AndroidNoob69 @ChikeD
edit i have xperia p so i have OFFICIAL STAMINA
Hi guys i've been searching a lot for this problem but find no answer how to fix it.The problem is that battery drains very fast even in sleep mode.When i woke up my battery was at 42% now after ~12 hours it's at 16% and i don't even used my phone.(Only 1-2 calls and that's it)
Here are my battery stats in the attachments.As you can see 3days and it was running so good but today the problem started.Anyone help me?
Could be a problamatic battery. How old is the battery?
Are you rooted?
Hamza Murad said:
Could be a problamatic battery. How old is the battery?
Are you rooted?
Click to expand...
Click to collapse
Battery and phone are 5 months old and yes i'm rooted.
SgsD said:
Hi guys i've been searching a lot for this problem but find no answer how to fix it.The problem is that battery drains very fast even in sleep mode.When i woke up my battery was at 42% now after ~12 hours it's at 16% and i don't even used my phone.(Only 1-2 calls and that's it)
Here are my battery stats in the attachments.As you can see 3days and it was running so good but today the problem started.Anyone help me?
Click to expand...
Click to collapse
Disable auto sync, lower the brightness, don't overheat your phone.
Krishanshu said:
Disable auto sync, lower the brightness, don't overheat your phone.
Click to expand...
Click to collapse
But i've disabled everything and i don't overheat my phone.
@SgsD
Which phone?
Do a nandroid and reflash stock rom/kernel. (Even if you are on stock)
SgsD said:
But i've disabled everything and i don't overheat my phone.
Click to expand...
Click to collapse
Replace your battery.
Problem solved.Just fully charged my battery and it's ok now
You can even add some build.prop & init.d tweaks in your phone to improve battery backup as you are rooted. And you can also try any custom roms which have better ui & also better battery backup & even good performance compared to stock roms...