Hi guys -
So I saw in one of the 4.4 ROM threads that someone had used the Battery Calibration app from the Play Store and they claimed it seriously helped their battery life on the geespr. I decided to look at the app in the Store, and I started reading the reviews. I'm perplexed - - many people gave five star reviews claiming it significantly improved their battery life, while others said it did nothing, and a few even said it made their battery WORSE. Then there's the few who have said that wiping the battery stats file (the function that the app fulfills) can't possibly make a difference to your battery life because it only affects how Android reports the battery info. Still further, some say that the battery stats are ALREADY wiped when you flash a new ROM or even just unplug your charger.
So how about it, guys? Can we get a definitive answer about this? Surely our talented devs know the truth?
prowlingfox said:
Hi guys -
So I saw in one of the 4.4 ROM threads that someone had used the Battery Calibration app from the Play Store and they claimed it seriously helped their battery life on the geespr. I decided to look at the app in the Store, and I started reading the reviews. I'm perplexed - - many people gave five star reviews claiming it significantly improved their battery life, while others said it did nothing, and a few even said it made their battery WORSE. Then there's the few who have said that wiping the battery stats file (the function that the app fulfills) can't possibly make a difference to your battery life because it only affects how Android reports the battery info. Still further, some say that the battery stats are ALREADY wiped when you flash a new ROM or even just unplug your charger.
So how about it, guys? Can we get a definitive answer about this? Surely our talented devs know the truth?
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I've been confused by the same thing. I usually recommend doing it when switching between roms. While I can't give you a definite answer, I have also read that wiping the batterystats.bin file does nothing. This thread here says it does absolutely nothing and explains why. That being said, I am one of the people who have noticed significant increases in battery performance from it - which is why I recommend it. Apparently it shouldn't work though! So now the real question is, why the hell did my battery performance increase to such a high degree afterwards, if it does nothing? I didn't use the app, I just deleted the file once my phone hit 100%.
That thread I posted states it is clearly a placebo, and is even backed up by google. It won't hurt so I still do it because like I said Ive noticed an increase. Now Im completely unsure as to why that increase has taken place.
The app also says to let your phone drain to 0% and then recharge uninterrupted back to 100%. It says that it isn't necessary but helpful. Now this could help your battery IF it was a nickel based battery. Since ours in Lithium based, it can actually hurt performance and shorten your batteries life span.
HPTesla said:
Apparently it shouldn't work though! So now the real question is, why the hell did my battery performance increase to such a high degree afterwards, if it does nothing?
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This is a real conundrum :\ and it's going to bug the heck out of me.
prowlingfox said:
This is a real conundrum :\ and it's going to bug the heck out of me.
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Yeah, it appears as if it is simply a placebo. That thread is clear on what that file does and it shouldn't affect performance. Perhaps my increases happened because of changes in charging that just happened to coincide with wiping that file? What I do know is that I was regularly getting 15 hours or so with moderate use. Afterwards it doubled. The longest this battery has lasted for me was a little over 30 hours on a full charge.
HPTesla said:
Yeah, it appears as if it is simply a placebo. That thread is clear on what that file does and it shouldn't affect performance. Perhaps my increases happened because of changes in charging that just happened to coincide with wiping that file? What I do know is that I was regularly getting 15 hours or so with moderate use. Afterwards it doubled. The longest this battery has lasted for me was a little over 30 hours on a full charge.
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It must just be a combination of factors then...which would explain why some people say it helps and some people say it hurts. Seems there's no real clear trend. Thanks for your replies
prowlingfox said:
It must just be a combination of factors then...which would explain why some people say it helps and some people say it hurts. Seems there's no real clear trend. Thanks for your replies
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Eh, no problem, thanks for asking. I've been telling people false info based on misguided observations - and that's never good.
It works for me. I used to get like 11 hour with 3 hr screen time, and now I get 13
Sent from my LG-LS970 using xda app-developers app
Related
Evenin' lads, faced a small issue with my battery yesterday, right after a person "accidentally" cleared battery stats. Currently i'm running Unofficial Cyanogenmod 7.2.0-RC0-marvel-KANG (2.3.7), no OC, average RAM free at around 240-260MB. Back to the battery, tho: before the battery stats were cleared, the battery loaded up to 4200mV. Now, the highest voltag i can reach is 4196, rarely 4197mV. Is there any way to fix the issue in hand, or am i "doomed" to live with 4mV less?
ldd3081 said:
Evenin' lads, faced a small issue with my battery yesterday, right after a person "accidentally" cleared battery stats. Currently i'm running Unofficial Cyanogenmod 7.2.0-RC0-marvel-KANG (2.3.7), no OC, average RAM free at around 240-260MB. Back to the battery, tho: before the battery stats were cleared, the battery loaded up to 4200mV. Now, the highest voltag i can reach is 4196, rarely 4197mV. Is there any way to fix the issue in hand, or am i "doomed" to live with 4mV less?
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Are you serious? 0.0071 percent of a difference?
You should not only sue their asses you should call for capitol punishment!
BTW It's lads and lasses on here I am sure.
d33ps1x said:
BTW It's lads and lasses on here I am sure.
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I know, i know, my Mrs already told me plenty of times i'm a rude, sexist ph.ck; sorry.
Main thing: not only should i sue "them", but also shoot "them" on sight. In "their" nuts. To be bit serious for a minute: i'm fully aware it's not worth mentioning, since it's under 0.05%. However, i'd love to know what could cause this when deleting battery stats and what one can do about it in case it'd happen again.
are u friggin' serious ?
let me read again what you have wrote....
This is a semi general android question... but i have a galaxy nexus... and that's what I'll be paying with...so....
I am currently testing out ROMs... mostly apex and its previous incarnations...
I was wondering if there is any downside to flash ROMs often? Like once or twice a week, as far as longevity of the device or its rank management or " snappiness"?
Thanks for the info!
You will be fine. From what I understand it takes your battery a couple of days to "adjust" to your rom properly and display accurately
wayneb02 said:
You will be fine. From what I understand it takes your battery a couple of days to "adjust" to your rom properly and display accurately
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and if not you can calibrate your battery using battery calibration.
truthlesshero said:
This is a semi general android question... but i have a galaxy nexus... and that's what I'll be paying with...so....
I am currently testing out ROMs... mostly apex and its previous incarnations...
I was wondering if there is any downside to flash ROMs often? Like once or twice a week, as far as longevity of the device or its rank management or " snappiness"?
Thanks for the info!
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Click to collapse
Hey I am on build 20 or AOKP so I have rebuilt mine at least twenty times but probably a lot more because I have tried ever rom available. I think of it like rebuilding my laptop, I don't think it does any harm at all but over time the device will deteriorate just like any other hardware device.
NAND flash is susceptible to write wear and will degrade over time. Frequent ROM flashing will increase the write rate to the NAND and over time the storage performance will decrease.
I have not measured the impact myself.
what sillow said is what is worrying me mostly...i will probably end up keeping one stable build and only reflashing once a month or something of the nature just to get updates....
I know that hardware performance will deteriorate over time like any other device...the only thing is that i'm in Canada...so...yeah, three year contracts...hehe
i'd like to have my phone survive at least 2+ years comfortably...hehe
minipaolo - do you mean the battery calibration app? i'm using cwm recovery and there is an option to wipe the battery stats from the recovery, which i think is just what the app does, if i'm not mistaken? (other than showing stats, of course...)
truthlesshero said:
minipaolo - do you mean the battery calibration app? i'm using cwm recovery and there is an option to wipe the battery stats from the recovery, which i think is just what the app does, if i'm not mistaken? (other than showing stats, of course...)
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There has recently been a google+ post from one of the google developers who said that deleting you're battery stats has no influence whatsoever. Your battery will automatically calibrate itself, so no need to use a special app or delete the stats.
Anyway, good question in the OP. I can imagine it decreases the lifespan, but I can't imagine that it's decreased by a lot -or maybe just wishful thinking-
haha...exactly, let's just hope if there is an impact, that it's quite minimal...
I've been flashing roms ever since I got my first Android phone all the way up to the Galaxy Nexus now. Never had a problem.
Hello Everyone,
Many times while searching the internet for Nexus information, the search keeps having me come to this forum so I decided to become a member. Just got for my G-Nexus the other day, its replacing a Droid 3. Nothing really wrong with the Droid (well), but it was my first physical keyboard phone and I wasn't feeling it, and I heard so many good things about the Nexus I knew I had to have one.
I've had it less then a week now, and so far I love it. Though the one thing I must say I am not crazy about, which seems to be a common complaint, is the battery. It drains WAY too fast. Today though seemed more then ridiculous. I left my house @ 8:45 am @ 100% (right off the charger). Made some use of it on the bus, but nothing much (no calls, no video, no music). Already by 11:30am, I was @ 39%! I mean come on, I didn't even use it that much. Yes, I did notice I left the WiFi on, but it should not have drained that fast. Tuesday I used the device moderately and I was able to go home after having the device on for 9 hours and still have around 40% to spare. Its a shame they cannot make a battery that can accommodate such a great phone.
So some questions: Is it really necessary for me to root this thing to get its full potential? I never rooted a phone before. When I bought the phone, I got a shiny gel case that Verizon sells for like $20 - if I did get the extended battery and door, would this case still fit? I am thinking no. Is the ext. battery even worth getting?
I have more questions, but I will peruse the forums and see what everyone else is saying. So in all I just wanted to intro myself and say I am happy to be part of the forum!
Your battery should definitely not be draining this fast. Install better battery stats(look around XDA) and look at what partial wakelocks you have. Try to remember any recent apps that might have been causing the drain
The 2100mah battery will fit. If you're looking at the 3900mah extended batteries, those have their own custom backplates and won't fit.
I've read that the 2100mah battery adds about an hour of juice.
nickzkcin said:
Your battery should definitely not be draining this fast. Install better battery stats(look around XDA) and look at what partial wakelocks you have. Try to remember any recent apps that might have been causing the drain
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Click to collapse
Sorry to sound dumb, but what do you by "battery stats"..?
And I am not sure what a wakelock is either - if you could explain
Hey,
I got my Galaxy Nexus this week too. This is my third full day of using and I get good 10+ hrs of usage each day. I use it a lot too. At least 2-3 hrs of talking, about 50+ texts, synching 4 emails, and browsing/streaming an hour or two each day.
You should check what drains your battery the most and go from there.
Sent from my Galaxy Nexus using Tapatalk 2
Wavester said:
Sorry to sound dumb, but what do you by "battery stats"..?
And I am not sure what a wakelock is either - if you could explain
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Click to collapse
'better battery stats' is an app. go look for it. there's an XDA version
your phone goes into 'deep sleep' to conserve power. wake locks are when something refuses to let it get to that state and locks it awake. This is major cause of battery drain.
Better battery stats is available on the Play Store (ugh hate that name) but the dev is nice enough to give it to xda members for free:
http://forum.xda-developers.com/showthread.php?t=1179809
Aside from looking at wakelocks, go to Settings>Battery, then look at the list of stuff (in descending order) that's eating your battery. I went to watch a movie once at 90%, when it was done the battery was at 18% and I never even touched my phone. I checked that list and apparently Facebook killed the battery. Try and look for apps that might be using up a lot and either uninstall them, replace them, or trun off features that might be causing the drain
As someone new to this forum you should learn questions go in Q&A
Please read forum rules before making threads
Thread moved
FNM
Do me a favor.
Settings>Battery>click that graph.
Screenshot it (volume down+power)
and upload here.
I'll let you know if you have a problem...and if you do...we'll diagnose it.
Root it?
It's a Nexus man. They're fantastic for root users.
All the roms are AOSP...
And bug free (or...mostly. AS bug free as any google build, generally).
Jubakuba said:
Root it?
It's a Nexus man. They're fantastic for root users.
All the roms are AOSP...
And bug free (or...mostly. AS bug free as any google build, generally).
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Click to collapse
I agree with you that the Nexus is fantastic for root, but it's not necessary for all users. I rooted mine because I was use to with my old HTC HD2, but ,except for changing rom, it's useless when you just get your phone.
I think that you can keep the stock rom, and don't root it. One day you will maybe need it, but the stock rom is very nice, it's enough to start (that's what I did with mine).
I noticed you are on Verizon, bad cell reception can chew your battery for lunch too.
There's something floating around in the development section (sprint I think) called battery mod.
Of course, youd need to root and unlock your device to get it working (takes all of about 5 minutes).
I also had this battery draining problem, but installing a custom from with a power saver governor and the battery mod, it'll drain 1% every 30min-1hour. Its essentially in "deep sleep", as the CPU winds down to 0mhz, instead of the standard 350. With this comes a lower CPU voltage, so less energy is wasted.
All in all, this is a great phone once you tame it.
Look for Black Ice ROM. Its probably one of the best here because it let's you choose a stock look or a custom look
Sent from my Sprint Galaxy Nexus CDMA using XDA
How's the battery life on cm9, is it same as stock i.e. about 2 days per full charge???
harsh.ea said:
How's the battery life on cm9, is it same as stock i.e. about 2 days per full charge???
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For me yes
Sent from my One V using xda app-developers app
maxwen said:
For me yes
Sent from my One V using xda app-developers app
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+1 or even more
Terrible battery life
I'm not completely sure why but for me it has been terrible. Drains to less than 40% in 5-6 hours. I at first thought it was the overclocking I did, then I set the max CPU speed to 1024 MB and it's still terrible battery life. I have wi-fi and data off most of the time and the phone not being used and it still drains this bad. Can someone help me? I've tried a few different governors under the CM9 settings now, which is best? I notice that wi-fi and the screen are using the most power. Why does wi-fi remain on/drain power even when the screen is off? Sense managed to save my battery and make it last for like 2 days (as mentioned in the OP) by turning off wi-fi and data when the phone was asleep/locked. Also, I used auto-brightness on Sense and got the 2 day battery life. Auto-brightness on CM9 seems to be KILLING my battery.
Someone help me get max battery life out of CM9 for my HTC One V (CDMA) please!
swboland said:
I'm not completely sure why but for me it has been terrible. Drains to less than 40% in 5-6 hours. I at first thought it was the overclocking I did, then I set the max CPU speed to 1024 MB and it's still terrible battery life. I have wi-fi and data off most of the time and the phone not being used and it still drains this bad. Can someone help me? I've tried a few different governors under the CM9 settings now, which is best? I notice that wi-fi and the screen are using the most power. Why does wi-fi remain on/drain power even when the screen is off? Sense managed to save my battery and make it last for like 2 days (as mentioned in the OP) by turning off wi-fi and data when the phone was asleep/locked. Also, I used auto-brightness on Sense and got the 2 day battery life. Auto-brightness on CM9 seems to be KILLING my battery.
Someone help me get max battery life out of CM9 for my HTC One V (CDMA) please!
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I was going to give CM9 GMS a shot but maybe I'll wait for a few weeks.
atonz said:
I was going to give CM9 GMS a shot but maybe I'll wait for a few weeks.
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Monkey mentality.... 2 people says yes and one came up with issue with some app sucking his battery, snd result? Another mr perfect with stating about cm9 quality and doubs with no real experience......
Haha, dont install it, your phone will explode...!!
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Hunteres said:
Monkey mentality.... 2 people says yes and one came up with issue with some app sucking his battery, snd result? Another mr perfect with stating about cm9 quality and doubs with no real experience......
Haha, dont install it, your phone will explode...!!
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Actually I had other reasons to wait including concerns about my first flash.
I did end up flashing last night, but not based on the in-depth experience your 1-line reply to this thread described. I actually had any questions I had answered on the IRC channel by a few devs which was highly appreciated.
I don't think there is anything wrong with people waiting for even more stable versions and commenting on that as such. Maybe instead of trying to provoke me through insults you could have tried to convince me. Otherwise your criticism is useless without any sort of construct so please keep it to yourself.
atonz said:
Actually I had other reasons to wait including concerns about my first flash.
I did end up flashing last night, but not based on the in-depth experience your 1-line reply to this thread described. I actually had any questions I had answered on the IRC channel by a few devs which was highly appreciated.
I don't think there is anything wrong with people waiting for even more stable versions and commenting on that as such. Maybe instead of trying to provoke me through insults you could have tried to convince me. Otherwise your criticism is useless without any sort of construct so please keep it to yourself.
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So make some short.research here mate. Cm9 is extremly stable and just a short step to be final, and.almost all developers are focusing on CM10 nowadays. Thats all and seriously there is nothing wrong with CM9 at all - me running it, without single issue
Monkey mentality...
Hunteres said:
Monkey mentality.... 2 people says yes and one came up with issue with some app sucking his battery, snd result? Another mr perfect with stating about cm9 quality and doubs with no real experience......
Haha, dont install it, your phone will explode...!!
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Click to collapse
Exactly what app did I say was sucking my battery? Oh right, I didn't. I asked for help on how to get max battery life with CM9 (like how I should tune the settings) and of course I get someone who thinks they know everything coming in here just to talk **** on someone else. Why did you even bother to post dude? You just wanna call people out and put them down. Does that make you feel better? Insulting people via text on an internet forum? Real cool man... Who's the real mr. perfect here?
That being said...
The ONE AND ONLY issue I have with CM9 is that it seems to be draining battery way too quickly. The first 2 posts claim to get the same battery life as with stock rom (about 2 days). Can someone (someone who actually wants to help here, not someone who just wants to laugh at people who don't have EVERYTHING figured out and perfect like they do) please tell me how they have set up CM9 to get 2 days battery life. I really really like CM9 and the only thing keeping me from using it is this battery drain.
swboland said:
The ONE AND ONLY issue I have with CM9 is that it seems to be draining battery way too quickly. The first 2 posts claim to get the same battery life as with stock rom (about 2 days). Can someone (someone who actually wants to help here, not someone who just wants to laugh at people who don't have EVERYTHING figured out and perfect like they do) please tell me how they have set up CM9 to get 2 days battery life. I really really like CM9 and the only thing keeping me from using it is this battery drain.
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Well, I use JuiceDefender to switch off wifi and 3G when the screen is off. Also, I don't use autobrightness, opting instead to set screen brightness to 20-30% (which is still pretty bright IMO). Been getting 1 and a half days out of the battery with low-mid usage (texting/calling/checking Facebook & Twitter)
However, I've only been using CM9 for about 5 days, so you might want to take my advice with a pinch of salt. Hope this helps anyway.
Can anyone comment on battery life for the new release of jelly bam? I have been getting 50+ hours and over 7 hrs of screen on out of my gorilla gadgets extended battery and I don't want to lose that performance. I would post this in the jellybam thread in the dev section, but I have fewer than ten posts and I can't. Thanks for your input.
razorbackinspire said:
Can anyone comment on battery life for the new release of jelly bam? I have been getting 50+ hours and over 7 hrs of screen on out of my gorilla gadgets extended battery and I don't want to lose that performance. I would post this in the jellybam thread in the dev section, but I have fewer than ten posts and I can't. Thanks for your input.
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Usually, battery life only gets better. Also, not many people have your extended battery so it's gonna be very hard to compare.
I'm currently using 4.0 with stock kernel and i'm getting good battery, life the same as before.
I guess I should have asked how is the battery life as compared to the previous version(s) of the rom.
razorbackinspire said:
I guess I should have asked how is the battery life as compared to the previous version(s) of the rom.
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I've actually found the battery to be a lot worse for me for the time being. I was getting killer battery life but now it's beyond awful. I don't necessarily think it's 4.0's fault, but i have something definitely going rogue and draining and can't seem to pin it on anything in particular. My two biggest drainers according to GSAM are "Android System" and "Kernel (Android OS)", so that's why I don't think it's a particular app or anything. This is since updating to 4.0.
Something Creative said:
I've actually found the battery to be a lot worse for me for the time being. I was getting killer battery life but now it's beyond awful. I don't necessarily think it's 4.0's fault, but i have something definitely going rogue and draining and can't seem to pin it on anything in particular. My two biggest drainers according to GSAM are "Android System" and "Kernel (Android OS)", so that's why I don't think it's a particular app or anything. This is since updating to 4.0.
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Thanks for the reply. I'm gonna roll with this version bc I haven't seen anything in the new One that I can't live without and the battery life is kicking.