Database Users

Reasonable battery life expectations after Rooting

So sorry for adding to the battery life threads, but I'm pretty frustrated.
I've seen people posting screen shots with 18 hours uptime, 7 hours wake time and 50% battery on custom roms. I've seen people getting about 24 hours on a single charge.
I've had my evo 2 weeks now, and I've tried about 3 different ROMS and 4 or 5 different Kernels all of which promised LONG battery life. I'm currently running BakedSnack 1.7 with Kernel #5. My phone has been on 10 hours, 2 hours of wake time and it has only 35% left. Couple of short phone calls, 10 mins Pandora and a bit of browsing and texting here and there. I was expecting more after rooting, yet it seems almost the same as it was before I rooted.
Am I expecting too much ?
I've gone through the full discharge/recharge cycle about 4 times so far. Bad battery perhaps ?

will the phone charge get you through a day say 10 hour work day ( includes travel time )
imho your expecting to much with 10 hours in to your charge and still have 35% left is pretty damn good imho
Baked Snacks is a great rom ! its no the battery check your TWS

Depends what you are doing, some things (3d games, flash) will drain the battery faster than others.
If you are at 10 hours and 2 hours awake with 35% left, thats not too bad. You should end up around 16-17 hours with 4 hours of awake time.
If you are talking on the phone, that will drain your battery the fastest.
Make sure you completely condition your battery as well (as many posts show)

Sporkman said:
will the phone charge get you through a day say 10 hour work day ( includes travel time )
imho your expecting to much with 10 hours in to your charge and still have 35% left is pretty damn good imho
Baked Snacks is a great rom ! its no the battery check your TWS
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Click to collapse
It will make it through but usually by 5pm its around 30%. I almost have to make an effort to use it sparingly though. I really like the Baked Snack Rom, its very slick probably the best I've had so far. TWS was 3% today.
Bielinsk said:
Depends what you are doing, some things (3d games, flash) will drain the battery faster than others.
If you are at 10 hours and 2 hours awake with 35% left, thats not too bad. You should end up around 16-17 hours with 4 hours of awake time.
If you are talking on the phone, that will drain your battery the fastest.
Make sure you completely condition your battery as well (as many posts show)
Click to expand...
Click to collapse
I haven't even gotten into playing games or watching video on it yet to be honest and my phone calls are usually short.

30% by 5 stop please be happy with that lol

goon3r said:
So sorry for adding to the battery life threads, but I'm pretty frustrated.
I've seen people posting screen shots with 18 hours uptime, 7 hours wake time and 50% battery on custom roms. I've seen people getting about 24 hours on a single charge.
I've had my evo 2 weeks now, and I've tried about 3 different ROMS and 4 or 5 different Kernels all of which promised LONG battery life. I'm currently running BakedSnack 1.7 with Kernel #5. My phone has been on 10 hours, 2 hours of wake time and it has only 35% left. Couple of short phone calls, 10 mins Pandora and a bit of browsing and texting here and there. I was expecting more after rooting, yet it seems almost the same as it was before I rooted.
Am I expecting too much ?
I've gone through the full discharge/recharge cycle about 4 times so far. Bad battery perhaps ?
Click to expand...
Click to collapse
Have you tried SetCPU? I have stock rooted with SetCPU (Perflock Disabler ftw) and without a signal 13-25% of the time (meaning the phone is searching for a signal), I end a 10-12 hour work day with about 45-50% left. Underclocking to 250 while the screen off has helped a lot.

This seems to be a common concern. first please remember to take everything with a grain of salt when it comes to people reporting there battery times. There are just to many factors to say ok if you use this rom and this kernel you will get 20 hours of battery life. Also many of the people reporting battery life exaggerate. sure they may ahve gotten 50 hours between charges on stock battery... but they surely didn't have moderate use ... or any real use during that no matter what they claim.
from another post it seems the majority of people in that post (with everything tweaked calibrated and set up) were getting roughly 13-18 hours of battery life out of there phone with normal use. normal being defined by actually using your phone as a phone as well as using its other capabilities. So my feeling if you are a moderate user you should expect to fall into this area as a goal. Things to help would include setCPU, making sure you turn off data when you shut off screen (or getting a program to do so for you - juicedefender) and making sure you calibrate your battery and battery stats of your phone.
it seems like you are getting close to this range however you are having to watch your use to do so. as others have said the first thing i would do is get setCPU and set up a battery saving profile. read through some of the battery threads if you havent and look for setting changes that wont impact you tremendously but will help save battery (for example if you dont use landscape mode a lot you can turn off autorotation and save some battery). If you are using froyo and are running a task killer uninstall it since it doesnt work any way. While most settings will make a small impact together they should help get you to where you can use your phone moderately through out the day with out worries.

Sporkman said:
30% by 5 stop please be happy with that lol
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Don't get me wrong here, the thread wasn't about me complaining, more about setting my expectations.
2 Years ago I had the first Touch Pro which would be dead by 3pm regardless of usage. At one point I had 4 batteries. I got the Touch Pro 2 a year later and it could go 2-3 days on single charge with normal usage. It was like night and day.
Granted this is a much more powerful device than either of those, but I feel like I've taken a step backwards with the battery situation.
ritzbrie said:
Have you tried SetCPU? I have stock rooted with SetCPU (Perflock Disabler ftw) and without a signal 13-25% of the time (meaning the phone is searching for a signal), I end a 10-12 hour work day with about 45-50% left. Underclocking to 250 while the screen off has helped a lot.
Click to expand...
Click to collapse
I tried out SetCPU but the phone was slugglish for me at times and once or twice I had to reboot.
I'm probably just gonna grab an extra battery and a desktop charger so I can charge one battery while the other is in use.

omegasun18 said:
Things to help would include setCPU, making sure you turn off data when you shut off screen (or getting a program to do so for you - juicedefender) and making sure you calibrate your battery and battery stats of your phone.
it seems like you are getting close to this range however you are having to watch your use to do so. as others have said the first thing i would do is get setCPU and set up a battery saving profile. read through some of the battery threads if you havent and look for setting changes that wont impact you tremendously but will help save battery (for example if you dont use landscape mode a lot you can turn off autorotation and save some battery). If you are using froyo and are running a task killer uninstall it since it doesnt work any way. While most settings will make a small impact together they should help get you to where you can use your phone moderately through out the day with out worries.
Click to expand...
Click to collapse
Thanks alot for those tips, I'll give SetCPU another go.
I haven't tried out Juice Defender but I'll look into that as well. Turning off Data when the screen is off might be just the thing I need!

Battery Life

In the interest of branching out of the main thread, I thought I'd start a thread regarding battery life- how many hours are you guys getting? For those who have somewhat decent battery life, what tweaks/settings are you using?
I went and disabled background data syncing hoping this would at least help improve battery life only to find that even idle (with no real use at all), this thing eats battery like there is no tomorrow.
I think with super light usage the most I've gotten is about 4-5 hours. There HAS to be a way to improve on this. I can never walk around without my charger in my bag- that is just crazy.
So any ideas or suggestions would be great! (By the way, I'm running Dexter's latest rom on top of eLocity's official firmware update).

I'm posting 4 hours 54 minute uptime right now with a quick 10 minute game of fruit slice, light to moderate web browsing, and moderate to heavy instant messaging. I have 29% battery left.
I generally set my apps to sync no more frequently than 30 minutes at the least. I turn the screen off when I walk away to do something. Other than that the tablet stays running on my couch side all day.
I have also seen it go for days on standby mode without going dead. I'm happy with the battery life. My Archos isn't much better, and is much less powerful of a device.
I'm also on ElociMod (which is based off the newest firmware... )

cant get more than 4 hours no matter what i do. running dexter's modc

We might be able to help the battery life using some clever tricks with SetCPU. I know it helped on my Pandigital Novel, and 2/3 on that device was used to power the screen, as opposed to ~1/3 for the processor. I'm gonna guess it might be the complete opposite of that on the A7.

rspray said:
We might be able to help the battery life using some clever tricks with SetCPU. I know it helped on my Pandigital Novel, and 2/3 on that device was used to power the screen, as opposed to ~1/3 for the processor. I'm gonna guess it might be the complete opposite of that on the A7.
Click to expand...
Click to collapse
I don't think SetCPU works on the A7 or any other Tegra2 at least not yet.

djyellowperil said:
I don't think SetCPU works on the A7 or any other Tegra2 at least not yet.
Click to expand...
Click to collapse
It doesn't... it will FC.
CPU Tuner installs and runs. It shows a min of 260 MHz and a max of 1000 MHz, and it has profiles based on battery charge. I just installed it, so I don't know what to expect.

I wanted to resurrect this thread and post my experience with A7 battery life.
I am running Dexter 1.2, brightness at 35%, WiFi always on, Bluetooth mostly off, screen timeout at 2 minutes. Syncing three mail accounts, weather and Google calendar. Limited or no background syncing of other apps.
My typical day with the device consists of;
a full charge in the morning
3 to 4 hours of standby time
30-45 minutes of web use
another 3 to 4 hours of standby
3 to 4 hours of heavy web, texting, reading, and games
I place the A7 back on the charger at night and it usually has about 20%-25% charge left.
I figure I am getting about 4-5 hours of use and close to 8 hours of standby each day fairly easily.
This battery life is very comparable to my Droid 2 Global.

The ipad battery has more than 4 times the capacity of the A7, but only twice the run time.

My experience with flashing in the pursuit of better battery life.

So I upgraded my Pre for the EVO when it came out and have been using the same phone and battery since getting it. I found XDA and immediately started rooting and flashing. I started with Fresh and DC when those were about the only options. I use my phone fairly heavily as I am almost always listening to downloaded radio shows either thru a plugged in headset or a jawbone icon BT set. I would say that I averaged about 8 hours of battery life no matter what ROM and kernel combo I tried. This is everything from Fresh, DC, Virus, Warm, CM6, EViO, Evo-NonSense, MIUI, and all of the applicable kernels. The best I had gotten with all of the various combos was a little over 16 hours (with an SBC kernel), which I thought was AWESOME! Needless to say, I used Warm TwoPointTwo (including betas) for a while and touted its look, feel, performance, ease of use, and feature set alongside an SBC kernel.
I ALWAYS keep an eye on the development section for something to pique my interest and pull me away from my current setup. After trolling Lucid's thread for cm7 for a while, I took the dive when the official cm7 nightlies started rolling out. I have been with cm7 ever since. I also took advantage of savage and zendroid kernels and now savaged zen.
The longest I have gone so far is 2 days 10 hours! How? Well...conservative governor on an SBC savaged zen kernel and toggling mobile data off when not in use. Will that same setup work for you? Maybe. Unfortunately all EVO' s are not created equal.
Moral of the story? It takes alot of time, reading, and work to find the thing that works for your EVO. It was a pain to find the right combo, but it is worth all the work.

Thanks for your post. When you got the battery to last over 2 days, it looks like the phone mostly sat there, am I seeing that incorrectly?
I, like you, have tried all different things with the Evo trying to get battery and performance. I am locked on MIUI right now, it gives me the best of both worlds. If you want to try a Sense rom, try Ava's stuff. When I get "bored" with MIUI I will go back to Ava.

lehalter said:
When I get "bored" with MIUI I will go back to Ava.
Click to expand...
Click to collapse
God will kill a kitten if you switch from MIUI. You don't want that on your conscience now, do you?

Yeah it really depends on your usage without it the 2 days 10 hours don't mean much. 2 days is no problem if I only use it to make a couple of calls. every 8 hours it only loses 4% charge when untouched with autosync on. The evo battery isn't bad it just takes tweaking like the op says

I get on average two complete days on a charge. With heavy usage I het like a day and a half, with light usage I can go 3 days. MIUI 1.1.28 w/ savage 1.6 kernel. I used to shut off my data too when I wasn't using it but with the MIUI build I'm on, I don't need to.

I really don't trust the battery use(in settings) in CM7 at ALL. I had my phone plugged into my car charger for 45mins on the way home tonight I unplugged it at 7:38pm.
It is now two hours later(10pm) it is showing I have been unplugged for10h55m9s on the posted screenshot. Then if you look at the other screenshot my battery indicator pro is showing the correct amount of time since unplugged.

I've noticed that the battery stats in cm7 do not reset unless you fully charge your phone. Otherwise it continues the count even if you plug a charger in.
Sent from my PC36100 using Tapatalk

_MetalHead_ said:
I get on average two complete days on a charge. With heavy usage I het like a day and a half, with light usage I can go 3 days. MIUI 1.1.28 w/ savage 1.6 kernel. I used to shut off my data too when I wasn't using it but with the MIUI build I'm on, I don't need to.
Click to expand...
Click to collapse
MetalHead, do you overclock/undervolt? If so, would you mind sharing your settings? Lastly, have you noticed an increase in browser speeds since you flashed MIUI and tweaked your settings?

I know I need to come up with something. my battery drain is friggin' horrid.
Unplug @ 100%, turn the screen on, let it sit with nothing, pretty much, running in the background and in 10 minutes will be down to about 93%....
Tried several different combos, but all are pretty much the same results...

taadow1030 said:
MetalHead, do you overclock/undervolt? If so, would you mind sharing your settings? Lastly, have you noticed an increase in browser speeds since you flashed MIUI and tweaked your settings?
Click to expand...
Click to collapse
I overclock at 1152 with smartass governor 98% of the time. Savage 1.6 is a HAVS kernel so I guess technically it is undervolted. I honestly couldn't tell you about the browser speeds, I've been on MIUI since the beginning of November so I really have no clue what the browser speed on a Sense ROM is. Everything is a lot faster with MIUI so I'm assuming my browser speeds have also increased.

HipKat said:
I know I need to come up with something. my battery drain is friggin' horrid.
Unplug @ 100%, turn the screen on, let it sit with nothing, pretty much, running in the background and in 10 minutes will be down to about 93%....
Tried several different combos, but all are pretty much the same results...
Click to expand...
Click to collapse
This is typical, unless you use an SBC kernel, bump charge your phone, or unplug it exactly when the light turns green.
Any non-SBC kernel will not keep the phone at 100% charge while on the charger. Some will argue that doing so is dangerous for the battery or methods like bump charging put too much wear on the battery.
This is most likely the reason that phone companies rarely have a true percentage shown on their batteries, because they all do this. If we didnt mod to get that real number shown, you would think your phone was acting just fine.
Personally, if I am really going to be using my phone a ton in one day, Ill bump charge it, but otherwise I just accept that its going to drop that first 10% really fast.
The best measure imo of battery performance is how much % you lose when the battery is somewhat discharged, and off. Every phone will drain while you use it, but most of the hours of a day, your phone is off and idle. If you lose 1% per hour, or 5% per hour, that will make a huge difference in your up time per charge.

Unfortunately, mine doesn't stop at that 10%. For instance, mine came off the charger at 5:30 AM at 100%.
By Noon, it was down to 70%, and I had 1 - 3 minute call, no texts and maybe 20 minutes of playing Klondike before work.
I guess I'm gonna have to go SBC. Worst that can happen is I end up buying a new battery, just incase it does so it in.

So in 10 minutes you drop 7%, and in the next 6 1/3 hours you drop another 23% with moderate use?
That sounds like pretty typical battery results to me, thats about 26 hours uptime with a fair amount of use. But maybe others could chime in.

Dude, 5 hands of a card game is NOT moderate use. It's practically no use. Klondike doesn't use data, GPS, etc... nothing, except minimal graphics.
The one phone call literally lasted less than 5 mins, so yes, a phone that drops 30% doing nothing is drastic.

I seem to get pretty good battery life on Myns rom.
I can go at least 24 hours with moderate usage, all on the stock kernel.

Looks like I may have found a little better stability with the Netarchy-Toast CFS 4.3.2 Havs SBC less.
30 minutes of moderate use today and it only dropped 5%

The best battery life I have gotten is from Feb 09 Plutonium.

Miks 4.5 4.2 sbc, gps on updating all every hour call, text, surf, angry birds all freaking day, and get 14 to 16hours every day

MIUI
Wow i have been wanting to try MIUI for a while and i definitely will now.

I'm getting pretty bad battery life with MIUI 2.11 on hw 003. Can anyone recommend a good kernel? I'm hesitant to try the SBC kernels based on the potential battery damage, so savaged-zen is out, also savage-zen seems to have issues with usb mounting.
Is there a link to savage 1.6 CFS, which I've read in a number of threads now is a good one. Speed is not imp, stability, bt+usb working and battery life is.

Is this battery stat considered good?

I'm no battery stat guy, but could someone tell me if this is considered good battery life.

How long was your display on? You can check by tapping "Display" on that screen.
What level brightness was the screen? Did you use 4g? How long were you on the phone for? You can check by tapping "Voice Calls". Were you doing anything particularly battery intensive?

Looks good to me. Like the user above said see what your screen on time was.
Sent From My Evo Killer!

musclehead84 said:
Looks good to me. Like the user above said see what your screen on time was.
Sent From My Evo Killer!
Click to expand...
Click to collapse
Sreen time was 2 hours!!

Looks alright to me.

shook187 said:
Sreen time was 2 hours!!
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Click to collapse
Its not absurdly short, but you could probably be getting a little better battery life. Now let me just clarify that I have ABSOLUTELY no idea what you were using your phone for or how you have it setup so you may be getting spectacular battery life for your specific setup.

Yeah it seems just a little short to me too. I usually average about 3 hours of screen on time with 12 hours of usage throughout the day. About 30% brightness.
A lot of the battery depends on background data, auto-sync, fetching widgets, coverage area, gps usage, gaming, etc etc. So much to account for that the image doesn't tell us.

I'm just trying to have an idea where I'm at compared to most. I just brought juice defender ultimate, so I'm starting to tweak things.

on Bonsai, I can get 3 and half hours screen on before it goes dead playing games.
With 2 hours on, minimal games, regular stuff, on Bonsai I could pull 24 hours probably.

If you are rooted get a voltage and cpu control. for normal web browsing use and talking on phone etc 600mhz at 1150mv is perfectly fine maybe even lower (even tethering). you should also have the cpu throttler tweaked to stay as low as possible.
when you need flash video running or something intensive you should be able to run the phone at 1200 25mv below factory ^^ (does not apply to games)
My downfall was overheating issues so I spent the last day testing things to do with power so I can use it plugged in without getting to hot
*edit
I am going to find the min usage and see whats possible at what speeds/ power without having bad performance

That's about what I average on stock Gingerbread. I've gotten up to 40 hours (weekend, hardly any use at all) on this phone but also have gotten as little as 3 hours (probably a stuck app I couldn't find).
No juice defenders, task killers, etc.

How to get 36 hours on 1 charge

Alright, so I'm not a very heavy user on the phone but I've started getting 36 hours of use on my phone. I was blown the hell away! I usually would get a Max of up to 25 or 26 hours or so before this. Even then a full 10 hours extra is magnificent!
Here's what I've got going on:
Running MIUI 2.3.23 ROM with Bulletproof Add On pack
Using Tiamat 1.1.5 kernel
Juice Defender Plus on Advanced mode
Recaibrated my batter with Battery Callibrator app
Overclocking at 1039 MHz and underclocking at 184 mhz using SetCPU
After calibrating my battery I let the battery run out completely a couple of times and voila!
I took a screenshot of my usage statistics but I can't find the damn thing now. I guess you're just got to trust me on this. This was definitely worth sharing.
All the best!
Sent from my HTC Desire Z using XDA

How many hours of screen on time did you have at the end of that charge? The longest battery life i've ever had for my phone was actually 3 days and 3 hours with 5 hours of screen on time. I'm a light to moderate user and i achieved that result with CM7.2 RC1 without any tweaks.
I really like the look of MIUI but i don't find it to be as fast as it really should be. I get frustrated by the scrolling lag that is present in the settings menu and the fact that video playback is much slower in comparison to other ROMs. Web pages were also always SO much more laggy in MIUI for me than on Sense or AOSP based ROMs. That's my personal experience, i think i've just about given up on MIUI and Sense based ROMs. I haven't touched either of those for a while now.

I get 36 hours normally with the stock Sense 2.1 ROM and Unity V10 kernel. Overclocked to 1Ghz with the standard governor.
I use it quite lightly though, 10 to 20 SMS, bit of internet / Facebook and 30 mins FM radio in the morning. Also accounts sync automatically, mail picked up every hour, data always on. That was with the stock battery, with the Anker 1600 mah I get to 36 hours with about 30% to spare!
On a side note, underclocking below 245Mhz has been know to cause problems. Standby of Death (or Sleep of Death), and possibly dropped SMS etc.
Craig

craiglay said:
I get 36 hours normally with the stock Sense 2.1 ROM and Unity V10 kernel. Overclocked to 1Ghz with the standard governor.
I use it quite lightly though, 10 to 20 SMS, bit of internet / Facebook and 30 mins FM radio in the morning. Also accounts sync automatically, mail picked up every hour, data always on. That was with the stock battery, with the Anker 1600 mah I get to 36 hours with about 30% to spare!
On a side note, underclocking below 245Mhz has been know to cause problems. Standby of Death, and possibly dropped SMS etc.
Craig
Click to expand...
Click to collapse
*sleep of death or SOD... i think S is for sleep not standby...
———————————————
i didn't mean to flame you, nor to mock you in any kind of way

thats quite insane @[email protected];;
i get about 13~15 hours of charge each time @[email protected];;
i use my phone mainly for texting and emails
no games on the phone...
i should give that a try, thats quiet insane ;o

lil-devil said:
thats quiet insane @[email protected];;
i get about 13~15 hours of charge each time @[email protected];;
i use my phone mainly for texting and emails
no games on the phone...
i should give that a try, thats quiet insane ;o
Click to expand...
Click to collapse
Hehe the word you're looking for is "quite" and not "quiet(as in low sound)".

Ace42 said:
Hehe the word you're looking for is "quite" and not "quiet(as in low sound)".
Click to expand...
Click to collapse
woops typo

magic_android said:
How many hours of screen on time did you have at the end of that charge? The longest battery life i've ever had for my phone was actually 3 days and 3 hours with 5 hours of screen on time. I'm a light to moderate user and i achieved that result with CM7.2 RC1 without any tweaks.
I really like the look of MIUI but i don't find it to be as fast as it really should be. I get frustrated by the scrolling lag that is present in the settings menu and the fact that video playback is much slower in comparison to other ROMs. Web pages were also always SO much more laggy in MIUI for me than on Sense or AOSP based ROMs. That's my personal experience, i think i've just about given up on MIUI and Sense based ROMs. I haven't touched either of those for a while now.
Click to expand...
Click to collapse
I'm not sure how much screen on time I had. I'll give it a check next time I'm monitoring my performance.
Sense UI has been a pain for me from the moment I started. I tried CM 7 but it had a bug where it wouldn't vibrate when I got a message unless it was in silent mode. Since I SMS quite a bit, it was quite annoying. I tried a couple of Virtuous ROMs too but they were glacial in their speed. Couldn't stand the lag.
I find MIUI to be the perfect balance between features, UI and speed. It might be a tad laggy in some places, but on the whole, it looks great, works great and doesn't give me problems in the parts I use the most. It doesn't seem quite as laggy with me as you seem to describe it. But anyhoo, for the first time since I bought my DZ, I feel like I have a good phone that I can rely on.
Thanks for your comments, man.

craiglay said:
I get 36 hours normally with the stock Sense 2.1 ROM and Unity V10 kernel. Overclocked to 1Ghz with the standard governor.
I use it quite lightly though, 10 to 20 SMS, bit of internet / Facebook and 30 mins FM radio in the morning. Also accounts sync automatically, mail picked up every hour, data always on. That was with the stock battery, with the Anker 1600 mah I get to 36 hours with about 30% to spare!
On a side note, underclocking below 245Mhz has been know to cause problems. Standby of Death, and possibly dropped SMS etc.
Craig
Click to expand...
Click to collapse
WOw! Really? Stock giving 36 hours! That's pretty sweet man. Never happened to me.
And thanks for the advice on the underclocking. Maybe I should up it a notch, just in case.

lil-devil said:
thats quite insane @[email protected];;
i get about 13~15 hours of charge each time @[email protected];;
i use my phone mainly for texting and emails
no games on the phone...
i should give that a try, thats quiet insane ;o
Click to expand...
Click to collapse
Go for it bro! And let me know if it works for you.
Right now, I've already hit 33.5 hours and have just hit 15% battery. And this is including a few games of Angry Birds. woohoo!

lunarplexus said:
After calibrating my battery I let the battery run out completely a couple of times and voila!
Click to expand...
Click to collapse
Letting the battery drain to shutdown is not a good idea. Not good for long term life of Li ion batteries. Also, its unlikely, but possible that draining to shutdown will render the battery unable to take a charge. Fail safes on the device and battery are supposed to prevent this in theory, but in reality they don't always work. Several reports on this device of people that drained to shutdown, and then couldn't charge their battery.
The battery meter is not accurate enough to necessitate draining to zero. Just drain to 10 or even 20%, charge to full, repeat a couple times. No value added whatsoever to draining to shutdown.
I have easily gotten 48 hours+ with light usage on various ROMs, including ILWT and Virtuous Unity (which is Sense 3, and claimed by some to be a "battery hog"). This is with Bluetooth and WiFi always on, and no special battery calibration or battery saving apps.. So many things affect battery life. But my personal hunch is that the ROM, clocking, radio, and data reception in your area (and of course usage) have more to do with battery life than other factors. And with radio and reception being the really big drivers.

That's definitely very helpful. I've always heard that rechargeable batteries are supposed to be drained completely and charged at least periodically to extend its life. Your proposition is contrary to this belief but then, I don't know that much about the battery and those aspects of the device itself to be able to refute what you're saying. Best to be on the safe side though.
Current record for my battery is 42 hours as of today. I'm pretty thrilled. My device was giving at least 10-15 hours less before I made these customisations. So I feel it probably has helped. However, there are a lot of factors at play, as you said.
Thanks for the response!

lunarplexus said:
That's definitely very helpful. I've always heard that rechargeable batteries are supposed to be drained completely and charged at least periodically to extend its life. Your proposition is contrary to this belief but then, I don't know that much about the battery and those aspects of the device itself to be able to refute what you're saying. Best to be on the safe side though.
Click to expand...
Click to collapse
There are various types of rechargeable batteries with very different behaviors. What you mention is known as battery conditioning, where you periodically drain to (nearly) empty and charge to full, and is recommended for older type NiCd (nickel cadmium) batteries. This is to avoid "memory effect" where the battery will remember how much was discharged in past cycles, and not deliver any more than demanded before. Kind of a "use it or lose it" principle.
Lithium (Li) ion cells (the type on most smartphones) do not suffer from memory effect. And full discharge cycles actually hurt the long term life of the battery. Charging frequently is actually the best for this type of bettery. But a couple nearly full cycles are needed to properly calibrate the battery meter on the phone.
If you want to educate yourself on the Dos and Don'ts of batteries, this website is a good one:
http://batteryuniversity.com/