Okay, so the thing is I have an HTC Evo 4G with the following:
- The latest RC of CM7 (not a nightly or anything like that)
- A 3500mAh battery from Sedio
- Whatever default kernel comes with CM7
- A Sedio case made just for the extended battery
I like the Sedio case and everything, but I kind of want to use something else that looks better or feels better. That, and my current Sedio case is quite bulky and I could do with less of that bulk.
But the thing is I love the insane battery life the Sedio battery has given me. The 3500mAh is incredible and I can usually go about 4 days on a single charge and with moderate use. I don't really want to give up good battery life, but I want to get a different case for once that isn't so bulky.
Then I did some reading around and found out I can still get decent battery life after downgrading to a smaller battery if I use Juice Defender and pick the proper kernel. I've fallen back on my Galilio 2000mAh battery so the original snap-on back will fit on it again. I have Juice Defender Ultimate running on it, and the last thing I need now is a kernel.
Now, I'm somebody who hasn't switched around with kernels before, and even after reading the guides on kernels, I still would feel better if I could get opinions from other users regarding them. The guides are useful if only for helping me understand kernel terminology, what kernels are, and what they do, but as to which one is the best, it's not really quite obvious.
So that's why I'm going to ask: I've narrowed my choice down to 2 kernels I'm thinking of trying (I'm afraid of that SBC that supposedly messes up batteries or something): Tiamat and Savaged-Zen with no SBC, but I don't know which one is better for conserving battery since it isn't really that obvious at a glance. Which one is a better choice in your experience for CM7 when it comes to extending battery life as long as possible? In short, yeah, I need help picking since I'm a kernel noob. I would appreciate help or information, thanks in advance.
Truthfully Tiamat and SZ are top notch kernels and will boil down to which one YOUR phone likes. For example, my phone didn't like SZ at all for some reason. Created some real issues.
As far as SBC, there isn't anything to worry about. Tiamat SBC more havs kernel is fantastic and I never had a problem. I was on an AOSP forever until the Synergy RC's came out.
Another thing you might want to look into are the undervolt scripts like ViperMod. I was running the 100mV one with the above and getting ridiculously solid battery life.
I didn't care for JuiceDefender myself, I didn't get anything better with it installed. I also didn't spend the time to tweak it probably how it should have been.
SirSigma said:
Okay, so the thing is I have an HTC Evo 4G with the following:
- The latest RC of CM7 (not a nightly or anything like that)
- A 3500mAh battery from Sedio
- Whatever default kernel comes with CM7
- A Sedio case made just for the extended battery
I like the Sedio case and everything, but I kind of want to use something else that looks better or feels better. That, and my current Sedio case is quite bulky and I could do with less of that bulk.
But the thing is I love the insane battery life the Sedio battery has given me. The 3500mAh is incredible and I can usually go about 4 days on a single charge and with moderate use. I don't really want to give up good battery life, but I want to get a different case for once that isn't so bulky.
Then I did some reading around and found out I can still get decent battery life after downgrading to a smaller battery if I use Juice Defender and pick the proper kernel. I've fallen back on my Galilio 2000mAh battery so the original snap-on back will fit on it again. I have Juice Defender Ultimate running on it, and the last thing I need now is a kernel.
Now, I'm somebody who hasn't switched around with kernels before, and even after reading the guides on kernels, I still would feel better if I could get opinions from other users regarding them. The guides are useful if only for helping me understand kernel terminology, what kernels are, and what they do, but as to which one is the best, it's not really quite obvious.
So that's why I'm going to ask: I've narrowed my choice down to 2 kernels I'm thinking of trying (I'm afraid of that SBC that supposedly messes up batteries or something): Tiamat and Savaged-Zen with no SBC, but I don't know which one is better for conserving battery since it isn't really that obvious at a glance. Which one is a better choice in your experience for CM7 when it comes to extending battery life as long as possible? In short, yeah, I need help picking since I'm a kernel noob. I would appreciate help or information, thanks in advance.
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Click to collapse
SBC can mess up your battery but I'd guess its a one in three hundred chance. It does give huge battery benefits.
My phone likes savaged zens kernels.
Battery calibration is also very important its a market app. Helps alot
Also. I'd reccomend trying decks 1.2.1 its a perfectly stable 2.3.4 much like cyanogenmod with a few tweaks and mods to optimize it for the evo, also its a bit more of the pure Google experience. The developer is great, and has a 2.3.5 build coming in the coming weeks.
Sent from my Xoom using XDA Premium App
Thanks for the responses.
After thinking about it, I'm thinking of trying Tiamat with SBC at the moment after all. The odds of anything bad happening with SBC seem to be really slim, and even if something bad does happen, I have more than one spare battery to fall back on.
So I'm going to try this one first and use the Battery Calibration app. I'm not sure how much this app will help since I deleted all my battery stats from within CWM after changing batteries yesterday (and to my knowledge, that's all the app really does for you).
Anyway, I'm going to guess I just flash this like any other zip in CWM. Once I finish doing a nand backup, I'll let everyone know how it turned out.
SirSigma said:
Thanks for the responses.
After thinking about it, I'm thinking of trying Tiamat with SBC at the moment after all. The odds of anything bad happening with SBC seem to be really slim, and even if something bad does happen, I have more than one spare battery to fall back on.
So I'm going to try this one first and use the Battery Calibration app. I'm not sure how much this app will help since I deleted all my battery stats from within CWM after changing batteries yesterday (and to my knowledge, that's all the app really does for you).
Anyway, I'm going to guess I just flash this like any other zip in CWM. Once I finish doing a nand backup, I'll let everyone know how it turned out.
Click to expand...
Click to collapse
That is all the app does, but it allows you to do it from the os. You can charge your phone to 100% and unplug your phone and calibrate as soon as the green light goes off when you unplug it. So its like perfectly calibrated. I use it every ROM / kernel flash
Sent from my Xoom using XDA Premium App
Well, after using Tiamat for a bit, my battery life appeared insane at first glance, since it took about half an hour to get to 99% battery life.
Then I started using my phone a little with my friend to show him some articles I marked in my RSS reader, and checking my texts/email, and several hours later, I've got about 62% remaining battery after 8 hours on a single charge. Still, I'm not sure if this is really the best I can get.
Also, it probably would have helped to use the calibrator after my battery was full, since I deleted battery stats in CWM only after flashing the kernel.
Related
okay i have alot of thoughts and questions on the htc evo battery life. first off i think the devs have done a great job with improving it but in reality we aren't there yet IMO. i mean coming from the hero after calibration and a 1750mAh battery i had what id call good battery life, even without the use of custom kernels or setcpu. even with calibration on the evo, the bottom line is the battery life sucks ass. i cannot even believe htc released a phone with such ****ty battery issues. ive even seen posts on here from people with extended batteries with crap battery life as well.
number 1 they should of shipped it with a higher capacity slimline battery. if it weren't for the devs here the phone would be unusable as i can remember the first time i bought the evo in july i had it for a week and got rid of it the battery was soo bad.
then we have battery mod scripts like calkins & the colin tweak that honestly never did much for my phone. then of course the much debated sbc mod that alot of people says created issues. my own take on it is it seems more of a visual effect or placebo than anything. yes it seems to hold a charge a bit longer but only when the phone is not in use. whats the sense of owning a phone such as great as the evo but be afraid to use it at all?
the reason i do not use sbc is because something to me doesn't seem right about the way it charges the battery. for example: my phone had 88% battery left before i flashed the sbc mod, then after reboot it was back to fully charged? how the hell can that be possible?
so im sorry for venting but sometimes i think i may look into a smaller android phone such as the optimus s or another hero. does the evo shift have these issues as well?
so now i ask for advice from the users that "claim" to get well over 24hrs battery life on stock batteries. im running myn's rls4 rom with the netarchy 4.2.2 /less havs/ no sbc kernel. if i choose to use setcpu and do not want to overclock what settings should work best? or did i hear that havs & setcpu do not play well together?
thanks for listening!
My biggest issue is that it's very inconsistent. I'm on MikFroyo 4.3. When I flashed this ROM I upgraded to all the newest radio, PRL, PRI, etc. It used the stock HTC #15 kernel and I was getting OUTSTANDING battery for the first 5-7 days. Then, literally overnight, my phone started losing 10% of its battery per hour while NOT IN USE. And, no, it wasn't the Up vs. Awake issue, I hadn't installed any new apps, none of that. So I "downgraded" PRI to 1.77 and STILL, absolutely horrible battery life. I've tried different kernels but nothing works. I can take my phone off the charger at 5am and be down to 15% battery by noon with LIGHT use. Signal strength isn't an issue either. It's just frustrating. I understand that these phones have large displays and constantly multi-task but you would think HTC would realize that these phones are going to be used by "power users" and plan ahead for it. But I suppose if our battery wasn't an issue we would just find something else to ***** about all day, lol.
Try miui, that rom gives me the best battery life I have ever seen.
Buff McBigstuff said:
Try miui, that rom gives me the best battery life I have ever seen.
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Click to collapse
+1. I get better battery life with my EVO running MIUI than I did on my Motorola Renegade clamshell phone, and probably twice the life I got with my Hero. I replace my battery with a charged one every morning and I generally still have 50-60% life left when I do that. I have gone 2 full days on a charge. I did not get this kind of battery life out of any sense ROM I have tried.
You say, MIUI, I say CM6 or 7. All depends on what you like, really in regards to ROM.
I can say that I do get better battery life on CM vs something like Myn's. My phone does stay on for more than 24hrs with somewhat light usage. That means the display is on for about 2-2:30hrs in that time while I browse the web or look at videos, but the rest of that time, it has all of its radios on and is constantly pulling down updates for Twitter, FB, NYT, and Yahoo Mail.
I haven't had any sudden drops in battery life, but if I did, I'd probably buy a new OEM or near-OEM quality battery to replace it.
My BB Tour used to do far less and yes, it lasted longer, like days without a charge, but it didn't have all this stuff going on. So yeah, comparing this large bar phone with its huge display, on-going processes is sorta unfair.
That said, I do wish it lasted 2 or 3 days with light usage.
garekinokami said:
You say, MIUI, I say CM6 or 7. All depends on what you like, really in regards to ROM.
I can say that I do get better battery life on CM vs something like Myn's. My phone does stay on for more than 24hrs with somewhat light usage.
That said, I do wish it lasted 2 or 3 days with light usage.
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Click to collapse
Coming from Myns rls 5 to cm7 both with stock kernels I could honestly say I see better battery life wit no OC on the CM7 rom. From my experience using warm 2.2 roms, I could get nearly 40 hours on the phone but in order for that to happen I have to barely use it. Which basically means its pointless. I mean if that's the case I might as well leave the phone turned off. Not to mention how much of your time that gets consumed searching for the perfect kernel to fit to your liking and phone.
I really do think the battery sucks on the evo but there are ways and roms to make it manageable. Sooner or later the new duel core & Tegra processors will be here soon, so bad battery life should be a thing of the past. Only because the CPU wont work so hard while sharing the strain we put on are phones. Lets just all sit tight and let technology take its coarse.
r0cky.Da.3v0.SU.-
+1 for MIUI. This is the best battery life I've ever seen. To the point where I stopped carrying my charger around. I still keep and extra battery just in case but I haven't had to use it in weeks. I get through the day easily on a full charge and I have no problem charging mine at night...I've been doing that since back in the day with flip phones. I thought everyone charged overnight while sleeping or is that not the norm?
Its also a norm for me if it needed it. Another reason I think MIUI and CM Roms are good on battery life is because ultimately they don't have 4g. I've been on the same charge all day and I still got some juice left to flash the new nightly for cm7. U gotta love it.
r0cky.Da.3v0.SU.-
Doesn't CM have 4G now? Even when I was on Sense roms I rarely ever used the 4G though. Same here though, I took my phone off the charger around 3pm, got home from work around 4am and still had plenty of juice left to back up, flash the new MIUI rom, and set it up. Seems like battery is getting better with every new release. No complaints here.
I don't get 24 hours battery, but I don't lose any battery while idle on a sense rom either. I'm on mikfroyo, with net's 4.3.1 cfs havs nosbc kernel. I'm using setcpu, and my screen off profile is 245 min and max smartass. With the screen off I barely lose any battery at all. I charge my phone periodically throughout the day, but I've gone 10+ hours off charger (with moderate usage, but no gaming or anything like that) and still had a good 40% battery left.
Sent from my blah blah blah blah
Keep in mind these phones have 8mp cameras, 1ghz processor and tons of extra memory. Basically the equivalent of the lap top computers of 2 years ago.
Sent from my DROIDX using XDA App
fachadick said:
I don't get 24 hours battery, but I don't lose any battery while idle on a sense rom either. I'm on mikfroyo, with net's 4.3.1 cfs havs nosbc kernel. I'm using setcpu, and my screen off profile is 245 min and max smartass. With the screen off I barely lose any battery at all. I charge my phone periodically throughout the day, but I've gone 10+ hours off charger (with moderate usage, but no gaming or anything like that) and still had a good 40% battery left.
Sent from my blah blah blah blah
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Click to collapse
Honestly anything over eight hours is descent especially if u still have juice left over. Even with that said and speaking for all the cm users, I can honestly say that netarchy kernels are definitely not needed using this rom. Even though its a great kernel, That would be kinda suicidal towards my battery life.
"Sent to you from a Gingerly Gingerbreaded Evo rockin' CM7 flashing Nightly."
-r0cky.Da.3v0.SU.-
ajones7279 said:
Doesn't CM have 4G now? Even when I was on Sense roms I rarely ever used the 4G though. Same here though, I took my phone off the charger around 3pm, got home from work around 4am and still had plenty of juice left to back up, flash the new MIUI rom, and set it up. Seems like battery is getting better with every new release. No complaints here.
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Click to collapse
Yeah, CM6 has wimax but CM7 doesn't. On the account of the Rom isn't stable yet.
"Sent to you from a Gingerly Gingerbreaded Evo rockin' CM7 flashing Nightly."
-r0cky.Da.3v0.SU.-
I've always stuck with the stock CM7 kernel but am wondering if there is a better one that doesn't loose any performance but improves battery life.
I really don't know much about kernels, so hoping for done good advice on this.
Sent from my PC36100 using XDA App
well I'm sure you've read somewhere that every device is different when it comes to handling different things like roms and kernels. My EVO doesn't mind Golden Monkey, give me badass battery life and doesn't give up speed and performance. It'll suck on Chop Suey though. When it comes to AOSP roms and kernels, SAV-ZEN is perfect on my phone when it comes to speed AND battery life. I can get almost a whopping 2 1/2 days out of my extended without ever charging it along with decent use. i tried a CM kernel and i had a no go with it no matter how many times i tried it. i got horrible battery life and it lagged bad. but like i said, every phone is different like people LOL. you might like skinny jeans where as someone else might hate them haha
If I've helped you out, feel free to say Gracias
Check my setup below. I get phenominal battery life and never have to sacrifice performance whatsoever.
I know I'm new here but I just got a nitro HD but the battery life is disappointing me (came from a Vibrant) I'm running CM9 7/8 with the HO!NO! kernel V5 right now. I wanted to try the ICS leak by HO!NO! because some say they have better battery life there but the download link isn't working for me.
Does anyone have a mirror? or tips to get better battery? (without the extended battery, that's my last resort)
Thanks in advance
Battery life has been disappointing me too. I'm using ICS Leak non HO!NO! but hopeless.
Won't stand a day without charing.
I have to carry charger everywhere I go.
Extended Battery is the best idea. But I have to sacrifice my Ballistic Case.
I got an extended battery two days ago from Ebay for $15 but unfortunately I got a defect one. Waiting for a replacement.
Dang that sucks... thanks for the reply man. I have a ballistics case too (came with the phone b/c I bought it off Craigslist), good thing I don't use it.
I guess I'll have to invest in an extended battery then. Might go with the Hyperion one, seems like it has decent reviews
Have you tried running CM9 without HO!NO!'s kernel? Though I appreciate his work, I've been just using the built-in kernel lately (mostly out of laziness) and I don't have any battery life complaints really, although I admit I'm not the most active user.
Oh damn, seriously? I'll give that a try. Thanks for the tip. hope it works =)
Honestly, you should get a second battery and/or external charger. These large, beautiful screens and LTE radios are power hungry. There's not a ROM or kernel for any high-end phone that will go a day with heavy usage. You need cpu spy and better battery stats to weed out wake locks, but even then there's no magic pill. I've found screen on time is the best metric for knowing how long you can last. With this phone it seems to be 3-4 hours. IPhone 4S and Windows aren't much better.
Sent from my LG-P930 using xda app-developers app
Dang. Sadly youre right. The default kernel seemed to help battery a bit but its not enough. That extended battery isn't a pain right? It makes the phone pretty fat from what I've seen
Thanks for the reality check btw haha
Sent from my LG-P930 using xda app-developers app
mast3rvo said:
Dang. Sadly youre right. The default kernel seemed to help battery a bit but its not enough. That extended battery isn't a pain right? It makes the phone pretty fat from what I've seen
Thanks for the reality check btw haha
Sent from my LG-P930 using xda app-developers app
Click to expand...
Click to collapse
It almost doubles the weight and thickness.
Sent from my SAMSUNG-SGH-I727 using xda app-developers app
I used SetCPU and set it to not go over 1026mhz. I also turn off GPS when I'm not using it. My battery life has almost tripled.
If you're using CM9, there are a lot of tweaks you can do to help with battery. Take a look at HO!NO!'s Full throttle post as he makes some suggestions. In my experience it's generally been the screen that eats all of my battery. You can tweak the brightness settings to be slightly dimmer to see if that helps.
You could also look into Juice defender. Never used it myself but I've heard people have great success with it
---------- Post added at 05:53 PM ---------- Previous post was at 05:40 PM ----------
You could also check out this post for Battery life tips for the ICS leak. It looks like underclocking + CPU Sleeper + tweaking screen brightness will help improve your battery the most
http://forum.xda-developers.com/showthread.php?t=1781762
In the past few weeks I've ran the ICS Leak, stock CM9 RC1 and CM9 RC2 with Juice Defender. For me, the best battery was the ICS Leak, RC2 w/JD being second best but not as stable. RC1 is essentially an unplugged drain when it comes to preserving battery life. Out of the blue the phone would be hot to the touch and shedding battery, just sitting in my pocket.
I also just got the extended battery, its bigger and heavier but you get used to it pretty fast, I don't mind it at all. In fact, the new back cover is of better quality than the one that came with the phone. It fits better and feels more sturdy. That plus the added weight actually gives it a better feel, for me at least.
thanks for the responses everyone
Nitro battery got better for me after a week or so of usage on the stock (I'm guessing it took some usage for the rom to calibrate the battery readings properly) but I ended up getting the extended battery anyways (hyperion) and I love it
At first it was kind of bulky and big to me, but like some of you say it was easy to get used to. Battery life is amazing now on CM9 RC2. I'm at 1 day and 3 hrs with airplane mode on, wifi on (wifi phone for me), and 2hrs and 32min screen time. Battery is now at 53%
Okay I have a question for the masses here. Why are YOU obsessed with battery life on your SGS3?
I've been through my fair share of cell phones with the latest 3 being the Galaxy S, SII and now the SIII. I've been through a long list of custom roms as well as time spent on stock roms and not once I have I installed a battery monitoring app like Juice Defender, nor have I been interested in undervolting or underclocking as I don't feel the extra battery life outweighs the instability of the phone and the time spend finding the exact perfect values to prevent reboots. As long as I have battery life to get my through the day (which I always have MORE than enough, I'm happy. I'm not a heavy user but my phone gets a workout during the day and I'm never far from a charger which is the awesome thing about having a USB connector to do the charging.
So I ask the question, what is the obsession with battery life? Are you trying to go green and get the most between charges as to not waste power recharging? Do you use your phone so much during the day that you can't make it through the school or work day without it going dead? Are you off the grid living in the bush and only get to charge when you are in town every couple days? Is it bragging rights you are looking for? Why did you spend big bucks to buy an extended battery? Why don't you use the phone the way it was intended to be used and turn off syncing apps just to save a bit of battery? Why do you turn screen brightness down to minimum and leave it there all the time when we have big beautiful screens that look so much better when they are correctly lit up for our surroundings?
I just find it interesting that every ROM thread and every kernel thread and a good portion of the threads in Q/A sections are littered with questions and discussions and arguments about battery life. How to get better battery life, why is my battery draining so fast on such and such rom, what is a good screen on time amount per charge. I don't understand nor can I find an interest in spending time to dissect and analyze everything just to squeeze an extra half hour of screen time out of my phone.
So why? Why are YOU so interested in the battery life of your phone. I'm not looking to make fun of anyone here. Just curious what the obsession is all about and why you are so interested. How does it make your phone or your life easier and better. Maybe I'm missing something.
Well for me, my battery life really sucked and didnt understand why so I started researching and i found out from stock you can do tweaks to improve it and so on and so on.
When I say my battery sucked on stock though it was really bad. I couldnt go a whole day. I would get about 10-15 hours of on time with less than a hour of screen time and my phone would be dead.
I dont care for going 2 days without a charge, I just wanted to go morning to night and still have some juice left. which i wasnt able to do before.
flexfulton said:
Okay I have a question for the masses here. Why are YOU obsessed with battery life on your SGS3?
I've been through my fair share of cell phones with the latest 3 being the Galaxy S, SII and now the SIII. I've been through a long list of custom roms as well as time spent on stock roms and not once I have I installed a battery monitoring app like Juice Defender, nor have I been interested in undervolting or underclocking as I don't feel the extra battery life outweighs the instability of the phone and the time spend finding the exact perfect values to prevent reboots. As long as I have battery life to get my through the day (which I always have MORE than enough, I'm happy. I'm not a heavy user but my phone gets a workout during the day and I'm never far from a charger which is the awesome thing about having a USB connector to do the charging.
So I ask the question, what is the obsession with battery life? Are you trying to go green and get the most between charges as to not waste power recharging? Do you use your phone so much during the day that you can't make it through the school or work day without it going dead? Are you off the grid living in the bush and only get to charge when you are in town every couple days? Is it bragging rights you are looking for? Why did you spend big bucks to buy an extended battery? Why don't you use the phone the way it was intended to be used and turn off syncing apps just to save a bit of battery? Why do you turn screen brightness down to minimum and leave it there all the time when we have big beautiful screens that look so much better when they are correctly lit up for our surroundings?
I just find it interesting that every ROM thread and every kernel thread and a good portion of the threads in Q/A sections are littered with questions and discussions and arguments about battery life. How to get better battery life, why is my battery draining so fast on such and such rom, what is a good screen on time amount per charge. I don't understand nor can I find an interest in spending time to dissect and analyze everything just to squeeze an extra half hour of screen time out of my phone.
So why? Why are YOU so interested in the battery life of your phone. I'm not looking to make fun of anyone here. Just curious what the obsession is all about and why you are so interested. How does it make your phone or your life easier and better. Maybe I'm missing something.
Click to expand...
Click to collapse
Actually, battery life can have quite a few hours difference depending on your settings, apps, kernel settings and ROM you run. So yes, it does matter if you can get 3.5hrs on screen instead of 1.5hrs.
People don't want to have to carry their charger with them all the time in fear of their phone dying on them in the middle of the day.
For me it is just the simple fact that I can run my phone for almost 2 full days without a charge (not kidding either). But I would venture to say that for most, it is because of the whole reason why many are here. We're Tweakers and no I don't mean Meth addicts. We do it because we can. I don't undervolt at all but I do overclock my kernels a bit (not max) but have found a really nice balance that will give me plenty of time using my phone and not having to worry about charging. Yup, I use my phone.
I smile to myself when I see these screen shots and the line is smooth and flat. Not sure if you are a skier or not but a good analogy is if you see a Double-Black Diamond (expert/steep), there is something wrong. If you see a Blue-Square (intermediate/nice slope) then you are good to go. Green-Circle (begginner/very low gradiant) means that noting is running.
Btw moving to Q&A
I feel the same as the OP. I don't OC/UV for pretty much the same reasons. I don't care. I have run Juice Defender in the past on stock setting values because I was basically lazy and didn't feel like tweaking the sh*t out of it to get the "best" battery life. Not to mention I don't like that it literally turns off your cell radio and initializes it in incremental intervals. I have actually been running an app called One Power that is free on the Play Store and have found it does improve my battery life mostly when my device is idle. But I, like you, am hardly obsessed with getting the best battery life. I don't use extended batteries because I hate how they make the phone twice as thick and I tend to avoid anything non-OEM for obvious reasons. I'm basically happy if I can get through a day on a single charge. I do have a 2nd OEM battery I keep charged in case I don't have time to fully charge up. Our expectations of getting days worth of use on a single charge is just ridiculous and unrealistic. If I cared that much I'd switch to Verizon and get a RAZR Maxx. But that ain't happening anytime soon! Besides, not all phones are created equal so - what works for one person may not work for another. I feel discussions of battery life in ROM development threads are a waste of time and serve only to clutter and detract from development of the ROM. Apps, use, etc are huge variables and will vary greatly from one user to the next. So, when people say "battery life on this ROM is great!" I usually roll my eyes and ignore the post.
Sent from my Nexus 7
t3chn0s1s said:
... I have actually been running an app called One Power that is free on the Play Store and have found it does improve my battery life mostly when my device is idle. <SNIP> I feel discussions of battery life in ROM development threads are a waste of time and serve only to clutter and detract from development of the ROM. Apps, use, etc are huge variables and will vary greatly from one user to the next. So, when people say "battery life on this ROM is great!" I usually roll my eyes and ignore the post.
Sent from my Nexus 7
Click to expand...
Click to collapse
Hey, can you shoot me a PM with more about that App. I'll check it out tonight but can you give me more info on it from a real-life user and not some Market desc/review.
Also, report those stupid posts in the Dev threads and we can delete those. I saw one the other day about 5 hours after a ROM came out (new thread and all) stating that the battery life was "Awesome!!!". How in the heck could you know after 5 hours of the ROM being posted (he was not a tester either), let alone being flashed. Rediculousness.
Woodrube said:
Hey, can you shoot me a PM with more about that App. I'll check it out tonight but can you give me more info on it from a real-life user and not some Market desc/review.
Also, report those stupid posts in the Dev threads and we can delete those. I saw one the other day about 5 hours after a ROM came out (new thread and all) stating that the battery life was "Awesome!!!". How in the heck could you know after 5 hours of the ROM being posted (he was not a tester either), let alone being flashed. Rediculousness.
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Click to collapse
Sure. I just use the default settings the app comes with but you can tweak it to your liking. Will send you a PM shortly.
Edit: I couldn't agree with you more on the battery life postings 5 hours after a ROM has dropped. That's absolutely ridiculous and impossible to gauge so soon. You gotta give it at least a couple days to be able to accurately judge the battery life.
Sent from my Nexus 7
t3chn0s1s said:
Sure. I just use the default settings the app comes with but you can tweak it to your liking. Will send you a PM shortly.
Edit: I couldn't agree with you more on the battery life postings 5 hours after a ROM has dropped. That's absolutely ridiculous and impossible to gauge so soon. You gotta give it at least a couple days to be able to accurately judge the battery life.
Sent from my Nexus 7
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to use the app, root is mandatory? i didnt root my phone, i installed the app, and it shows all the required settings, but when I try to customize, it needs root, my question is, if we use the existing mods, i can use the app, without rooting the device. right?
TIA
atrix4nag said:
to use the app, root is mandatory? i didnt root my phone, i installed the app, and it shows all the required settings, but when I try to customize, it needs root, my question is, if we use the existing mods, i can use the app, without rooting the device. right?
TIA
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Yes. My dad uses the app on his unrooted Galaxy Nexus with no problems. You just can't tweak the settings unless you have root.
Sent from my Galaxy S III
t3chn0s1s said:
Sure. I just use the default settings the app comes with but you can tweak it to your liking. Will send you a PM shortly.
Edit: I couldn't agree with you more on the battery life postings 5 hours after a ROM has dropped. That's absolutely ridiculous and impossible to gauge so soon. You gotta give it at least a couple days to be able to accurately judge the battery life.
Sent from my Nexus 7
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Click to collapse
Well it didn't take long for even this thread to turn into people discussing how to get better battery life out of their phone! haha. Figures eh?
I work a blue collar job so I need my battery to last all day. I'm not at a desk whee I can charge.......
Sent from my SAMSUNG-SGH-I747 using xda premium
My friend lost his son and since his phone didn't have juice, he couldn't call 911 fast enough. Had to plug in the charger for like 2 mins first. That's why.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
I'm generally indifferent about battery life and attempts to prolong it for 2 reasons.
1. The settings and customization done by the manufacturer are stable values tested and balancing between battery life and the features of the phone.
2.Everyone know what they're getting jnto when they buy a phone with ~4 inch screen,has LTE and top of the line features. It's rather obvious that battery life won't be great, if it isn't then you might as well just go back to the candy bar phones, if you expect the best and the newest AND battery life.I certainly didn't expect my phone to run for 10+ hours when I got it... and besides buying the best phone on the market and then turning everything off to conserve battery life just defeats the purpose. Just buy an extended battery, buy the extra battery OEM and bring a spare along, or have an external charger as well as a 2amp usb charger.
Edit: When I initially got the phone, it was getting 6-8 hours on a charge after a couple of months 12-14 hours per charge. The same thing happen on the JB OTA, Im getting between 10-18 hours depending on my Reddit, Twitter, Gmail and Engadget usage, though I have to admit there are sometimes problems with some apps preventing deep sleep and occasionally what seems to be memory leaks with apps constantly using the data connection.
Sent from my SGH-I747M using xda premium
I like pushing it to see how far the battery can go. I could make it through the day before, but with some compromises. I bought an extended battery and flashed a new rom (which came with some good kernel settings to mess with), and now I can keep everything on and go two days without a charge.
For me it's more about getting what I'm used to--recently switched to gs3 from an iPhone 4, which had amazing battery life. I got around 8 hours screen on with that and initially only 3 with the gs3. So I tweaked away and now it's back to what I expect!
Edit: also I tweaked my way to better battery life because I can--why settle for something that could be better?
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I have cm10 stable on my galaxy s2 sgh-t989 and the battery life has not been good so I wanted to trying flashing another kernel. Can anyone tell me what kernels will work and if anyones had a good experience improving battery life by flashing a different kernel. Any information is appreciated. I haven't been able to find much about the t989 and flashing kernels. Thank you!
What's up with these threads in the wrong places every so often? It's like no one reads the rules now-a-days...
And also, don't just say that your battery life is bad without giving members a time of how long the battery lasts. We don't want to guess how long your battery lasts.
macboy3000 said:
What's up with these threads in the wrong places every so often? It's like no one reads the rules now-a-days...
And also, don't just say that your battery life is bad without giving members a time of how long the battery lasts. We don't want to guess how long your battery lasts.
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sorrry, I guess I should have posted this in Q/A ... but after about 2hours I'm already almost at 50 percent.
And is most of the time on standby or on heavy usage?
macboy3000 said:
And is most of the time on standby or on heavy usage?
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I would say in between ... my biggest question was really about the kernels. I can determine for myself what is good battery life with experimenting with flashing different kernels, among other things. I'm just looking for a bit more information on flashing a kernel, ones I can, ones I can't, etc.
benpottier said:
sorrry, I guess I should have posted this in Q/A ... but after about 2hours I'm already almost at 50 percent.
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Same here. I cannot get my phone past the 5 hour mark if I am using it. If I just leave it next to me alone, it lasts 7. If I have wifi on, however, it lasts 15! My guess is how strong the network is and whether or not you have an exchange account synced affects it. Another thing is, after a full charge your phone running CM10 will refuse to enter deep sleep for some reason, making for some very disappointing battery life. Rebooting it every time you disconnect a charger helps somewhat, but that's hardly practical: with a battery life this bad, that makes rebooting every hour since I keep it plugged in everywhere I can. I am resigned to lugging an external battery everywhere I go and hate every minute of it.
As for another kernel, don't bother. Battery life has sucked for me with every last rom and kernel combo I have tried, including stock. Numbers have been pretty much the same, and there are no wakelocks on it. What another kernel did manage to do is make my phone really hot and really slow, as well as reboot whenever it feels like it. Phone becomes utterly unusable.
Kernel won't help you. You are not solving one problem, you are solving several : radio, deep sleep and demand for data.
Sent from my GT-P5110 using xda premium
kangelov said:
Same here. I cannot get my phone past the 5 hour mark if I am using it. If I just leave it next to me alone, it lasts 7. If I have wifi on, however, it lasts 15! My guess is how strong the network is and whether or not you have an exchange account synced affects it. Another thing is, after a full charge your phone running CM10 will refuse to enter deep sleep for some reason, making for some very disappointing battery life. Rebooting it every time you disconnect a charger helps somewhat, but that's hardly practical: with a battery life this bad, that makes rebooting every hour since I keep it plugged in everywhere I can. I am resigned to lugging an external battery everywhere I go and hate every minute of it.
As for another kernel, don't bother. Battery life has sucked for me with every last rom and kernel combo I have tried, including stock. Numbers have been pretty much the same, and there are no wakelocks on it. What another kernel did manage to do is make my phone really hot and really slow, as well as reboot whenever it feels like it. Phone becomes utterly unusable.
Kernel won't help you. You are not solving one problem, you are solving several : radio, deep sleep and demand for data.
Sent from my GT-P5110 using xda premium
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dang, ok. Thanks for the info. I'll stick with cm10 and its stock kernel, see if I can't tweak anything to get better battery life.
Get an extended battery I found one on eBay that increases battery from 1850mah to 2400mah without that ugly hump add on to the back.
Sent From the T-Mobile Galaxy S2 using XDA-Developers app
Moved to Q&A as this is not Development
benpottier said:
dang, ok. Thanks for the info. I'll stick with cm10 and its stock kernel, see if I can't tweak anything to get better battery life.
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By the way, I was referring to the current crop of custom kernels for CM10. I wrote it as a general statement and I didn't mean it to be.
There used to be one kernel called KKO. If it gets ported to CM10, get it. Your battery life will still suck, but you will have a slightly snappier phone and more governors to play with. You can squeeze maybe an extra half-hour from the phone this way. Insignificant, I know. Also, the extended batteries are all sacrificing something: either NFC functionality, or the slimness of your phone (some require a custom back cover), or both. In the end, when you do the math, it adds about 2 hours of runtime to your phone: you are still running from charger to charger. The external battery gives me an additional ~7 hours of heavy use, but is a big phone-sized object tethered to my phone with a USB cable. I look like a suicide bomber with a wire running between my pockets. Not ideal, not by a long shot.