Develop Bugs

Battery Life Vs Iphone 4

Ok hold on before you fly off the handle - I'm trying to ask a very specific question, to probably a fairly small sub group of people.
I own an iPhone 4 and a Desire. I , for the most part got the iPhone 4 because of the fairly bad battery life on the Desire - not to mention that I had just come out of contract with my ATT account so I could get a discounted iPhone toy.
Are there any others out there that have had experience with both of these devices and if so have you been even close to being sucessful at obtaining similar battery life? Which ROM and / or what SetCPU settings (I'm not entirely convinced how much difference that makes for me)??
It is now 5:27 pm and I have tried my best to have both devices used for the same things. I alternaated phone calls. I pushed emails to both devices nd I even tried to duplicate SMS's as much as psossible with help of a third person.
The iPhone has 80% left and the Desire has 60%. If anything though I used the iPhone more because it has my primary SIM card in it.
Thanks
JC

Not really sure this is a development thing but for me cyanogen 6 latest nightly has nearly double the battery life of the stock t mobile 2.1 rom that I had before.

maybe it's your battery stats.....wipe the nattery info and recalibrate your desire....you might have a fix then

stanleywinston said:
Not really sure this is a development thing but for me cyanogen 6 latest nightly has nearly double the battery life of the stock t mobile 2.1 rom that I had before.
Click to expand...
Click to collapse
Thanks - I haven't tried Cyanogen but i've tried enough of the others over some months that I knew that answer had to be a particular ROM OR the possibilty that it just wasn't going to happen.
Thanks

i use pays 1.9 rom and the battery is holding the charge much longer, i didn't charge the phone for 3 days and today it had 50 % before i started to play need for speed shift . and the iphone doesn't use as much charge as the desire because it has a crapy old lcd display and no REAL multitasing....

I got roufianos v6 and i get a day of heavy duty work on desire, day and a half with low medium usage and im happy with the battery. (wifi on all the time, auto sinc on an hour of fb, weather, xda rss news, nimbuzz chat, gtalk chat, couple of calls and sms, homerun battle 3d, internet checking fb and other forums, xda app couple times a day and thats pretty much most of the duty) i couldnt last 2 days with nokia x6 with 1/10th of that usage.
Besides, iphone doesnt have this insanely beautiful amoled bright colors do its normal its battery lasts longer. Its also got a diferent system and diferent multitasking codes. Desire runs some proceses in the background for certain period of time so it loads diferent apps u just used faster.
Besides, charge the phone over night and use it over day and u wont notice the battery life is bad at all. U cant enjoy iphone as much as u can enjoy desire if u know what each individual device is capable of.
If u ask me, u can give me an ever lasting iphone or a day lasting batteri on desire and id pick desire. As a matter of fact id pick desire over any combination about phones u make
Sent from my HTC Desire

OH oh - Sorry I didn't mean to get the iPhone war going. I have jsut noticed that the battery life has somehow greatly improved with the iphone 4 vs the 3 and I had previously not been making it even through the day with my Desire.
Probably wouldn't have even been looking at the Iphone if it hadn't been for the battery issue with the Desire.
Again I was just hoping some others had been able to personally experience the battery thing so I could get a better idea of whether to go back to the drawing (ROM) board or to give up.
Thanks all

I have had both phones & iPhone has hands down better screen (& you can see it in direct sunlight).
Battery life was a lot longer on iPhone, but I think that's just because I played with it less, got rid of it & kept my Desire in the end.
Currently using modaco's r8 with A2SD+, seems to make a big difference to battery life by having dalvik-cache & apps on the SD card. My battery is now a horizontal line in standby with constant sync etc (something I could never get before).
Can anyone else confirm better battery with A2SD+ or is it just me?

cbanbury said:
I have had both phones & iPhone has hands down better screen (& you can see it in direct sunlight).
Battery life was a lot longer on iPhone, but I think that's just because I played with it less, got rid of it & kept my Desire in the end.
Currently using modaco's r8 with A2SD+, seems to make a big difference to battery life by having dalvik-cache & apps on the SD card. My battery is now a horizontal line in standby with constant sync etc (something I could never get before).
Can anyone else confirm better battery with A2SD+ or is it just me?
Click to expand...
Click to collapse
I will be also interrested to know if A2SD+ improves battery...

[Q] AARRGGH!....Battery on my Evo stinks!

Configuring this thing for good battery life is exhausting. Before root I had done most things listed in this thread : http://www.xda-developers.com/android/tweaks-for-superb-battery-life-in-evo/ and finally achieved pretty good battery life.
After root, I have never been able to achieve this even though the bloatware isnt running, have various tweaks on there for performance, and so on.
Have tried Fresh Rom with stock and Kings #11 and liked it but had terrible battery life. Tried Myn's 2.2 with stock, Kings #11, and Netarchy and battery was not much better. Now running AVA9 (no flashed kernel) and battery is no better. Have tried running setCPU on all these setups and does not help.
Any suggestions? Seems someone will say this rom/kernel combo works for them and another person will say it sucks, don't use it.
I couldn't stick with Myn's because there were too many bugs/errors. If my best bet is to go back to all HTC stock rom w/root then so be it.
.....and yes, I have read through the numerous amount of threads on this topic but no clear combination has been highlighted that I have seen. I use my phone for business primarily so it needs to last me as long as possible. The thought of increasing my phone size with an extended battery is not appealing to me.

I have stock rooted 3.29. I initially did the plug-unplug trick when I got the phone. Then, I turned off always on data, and set email, google accounts, and Sense weather widget to update once an hour. Phone behaves the same as when data is always on, so I don't even notice 3G off when the screen is off.
I get 8 - 10 hours under very heavy use (constant fiddling, email, games, internet, calls, etc),
10 - 15 hours moderate (surfing, ebooks, email, internet),
and easily 18+ with light use (email, occasional light surfing, occasional call)

I have everything the same as before root so with the bloatware and some other things not running would think it would last longer than stock......not!
@greyopaque...what was the reasoning for using stock rom instead of custom? Battery life or just never tried any of the others? Would like to know if your battery life is better with just the stock over others.

Ditto....I am a heavy user and leave everything running that I need. I use the phone for what it was made for. After trying/not trying all different types of roms/battery tweaks/advanced task killers/battery monitors etc., I decided to buy another original red 1500 battery as I don't like the extended battery look either. So, until they come with better battery technology....I guess that would be the career to go into and make some money ;0).....we are stuck with the best phone ever...yet....with a battery life that sucks for those of us that put the phone to the test....have a great day!

Yep...only problem is having to shut the phone off, change battery, then power back on. All the while, missing whatever phone calls come in.
***My point of the thread really isn't the terrible stock battery but the fact that the pre-rooted setup lasted so much longer than the rooted w/custom rom. Why??
I would think the battery life would get better without all the bloatware and other worthless services running all the time.

Once again.. you need to check your apps. Most likely there's something causing a drain.. Try updating to the newest rooted stock roms (3.30). The new kernel is definitely an improvement.
As an aside.. what bugs did you have with myn's 2.2 rls2? I ran it, and it was fine. Now on rls3 beta and amazing rom with great battery (3.30 base).

To be honest, I've never tried anything else. I really like the stock Sense experience... and since this is a work phone, I need it to work without glitches.
CCallahan said:
@greyopaque...what was the reasoning for using stock rom instead of custom? Battery life or just never tried any of the others? Would like to know if your battery life is better with just the stock over others.
Click to expand...
Click to collapse

Well....hopefully I can hear from some peeps that have used a good amount of custom roms/kernels, as well as the stock one and see what they think.
Cmon guys....let me know!
@eyeballer1......Myn's was just acting weird and I kept getting a "com.htc.bgp" force close that I couldn't fix. Also, I have tried the newest stock rom but it is just so darn plain jane didn't keep it on long enough to test it. As for apps, I have basically the same apps on my phone that I had before root (except for specific root apps such as rom manager, titanium, etc).

1Brite1 said:
Ditto....I am a heavy user and leave everything running that I need. I use the phone for what it was made for. After trying/not trying all different types of roms/battery tweaks/advanced task killers/battery monitors etc., I decided to buy another original red 1500 battery as I don't like the extended battery look either. So, until they come with better battery technology....I guess that would be the career to go into and make some money ;0).....we are stuck with the best phone ever...yet....with a battery life that sucks for those of us that put the phone to the test....have a great day!
Click to expand...
Click to collapse
Sadly they won't.. That is battery technology.. This world is pretty much stuck where its at and will probably stay there.. Its the one thing that is not progressing that much.. Even from the 50's
That said.. the thicker battery is the way to go.. Only you will know its thicker, and trust me.. ITS NOT THAT BAD! Believe it or not you get used to it.. If its for business, well then a thicker battery should not bother you at all, use it during the day and maybe at night switch back to the smaller one.. You know, for the dates and ****
The thicker battery will be a life savior.. All these battery tricks and tips help, but nothing is going to be mind blowing.. The fact is, this phone is extremely advanced and requires a lot of power.. I just except the fact that I need to be close to a power charger at most times..

I might go ahead and try Myn's new beta with 3.30 and see what happens. Looks as though I need to look deep into what is actually using my battery. I have always used K-9 for email and have heard it sucks up battery, but it only uses about 2% on mine and is the best email app I have ever found.
@fastfed......I'll have to ask my wife if I can go on a date sometime.

what helped me the most was wiping battery stats correctly (as per cyanogen wiki, but applies to all roms).
Charge to full, turn off, wipe battery stats. Turn back on, wait till everythings loaded, unplug. Use as normal until battery dies (do not charge at all until battery dies). Recharge fully in one go (meaning do not unplug while charging until full). Use and charge as normal.
This should be done whenever flashing new rom.
Sent from my blah blah blah blah

I also use k9 for mail. As I use Hotmail not Gmail.. is it really that bad? Anything else out there ?
Sent from my PC36100 using XDA App

The biggest positive jump I have seen in regards to battery life was going from Cm6 to 3.29 ruu stock, then I ur3 to root.
I'm still sceptical that the 3.30 zip update gave any improvement to battery life as I have seen others report. In fact, I almost wonder if I somehow have less battery life now, but it could be in my head. It's almost impossible to approach this issue scientifically since I use this evo all day.
Sent from my PC36100 using XDA App

Try bakedsnack 1.8, its the best battery life I've seen on a rom w/o having to make all these stupid tweeks and disabling features on ur phone.
Sent from my PC36100 using XDA App

I'm gettin great battery life using vaelpak 2.3 with the stock htc kernel. I imagine most of the custom kernels around are based off of older kernels and while they may have higher "performance" ratings though I have hardly been able to tell a difference between kings 11 or baked speed and battery, I think the newer stock kernel is your best choice no set cpu to worry about, its just simple. I'm personally gettin about 14 hours with almost constant music playing to bluetooth headset, a bunch of browsing, and occasional use of google navigation which is a big battery eater. With just phone and text use after 21 hours I was at 52% yesterday.

ok so i have literally flashed every major rom / kernel and a comination of each. I have found that with minor tweaking most sense based roms get close to the same battery life. some people will argue that this or that rom is best but I would challenge others to truely preform a test on them and i bet they would be suprised.
k-9 is only a battery hog if you have it constantly polling for new emails if you have it set up to scan constantly then it will take a reasonable about of battery life but nothing more then most other email apps with the same settings.
have you tried as was lsited above and recalibrating your battery? I am assuming you are a pretty heavy user from the sound of things. How long where you getting pre root and how long are you now getting rooted? do you have titanium back up set up on a schedule? If so that can cause major battery drain as it sometimes keeps your phone awake.
All in all with the information you provided no one can actually tell you what is wrong. there are to many variabes and everything we say is a shot in the dark hoping to hit common problems.
my best recomendation configure your battery stats as listed above, if you havent tried use the HTC trick (chrage battery for 8 hours turn off phone charge for 1 hour turn on phone unplug it or 2 minutes then turn it off and charge for another hour.)
Anytime you wipe data you wipe your batary stats and it can drasitally impact your phones "battery life".

At this point I'm not so sure my battery or charging device on the phone isn't defective. But, only time will tell.
Currently I am running the newest, non-beta Myn TwoPointTwo and Netarchy 4.2 non-havs. I also ran this procedure (which fachadick already suggested):
1. Phone on...charge until green light comes on. Immediately unplug and turn phone off.
2. Plug phone back in until green light comes on again. Immediately boot into Recovery and wipe battery stats.
3. Use the phone on battery until dies.
4. recharge phone to 100%
I'm still on step 3. Will report back after a few days.
I had never heard of doing this when switching roms so hopefully it will help since I have swapped out a good amount lately.
Does anyone know where to get the newest HTC flashable kernel based on the new 3.30 release? All I have found is the rom package.

[Q] why GT-N7100 constantly restarting?

Hello everyone,
My note II restates out of the blue without any good reasons :crying:
it generally happen when i play any game or use 2 or 3 apps at the same time ( like sound cloud , facebook and messenger )or ( game and messenger ) or playing for a long time ... knowing that the battery is fully charged or at least more then 80% ... it suddenly restarts with about 2 % .. and i take that battery out and in and open the phone to find it about 60%
i tried to factory reset
knowing that the phone on kitkat 4.4.2 the original french update from Samsung , and i tried also to run the secreat codes but neither of the code worked!!
can anyone please tell me what is the problem and how can i fix it please

Bosteco said:
Hello everyone,
My note II restates out of the blue without any good reasons :crying:
it generally happen win i play any game or use 2 or 3 apps at the same time ( like sound cloud , facebook and messenger )or ( game and messenger ) or playing for a long time ... knowing that the battery is fully charged or at least more then 80% ... it suddenly restarts with about 2 % .. and i take that battery out and in and open the phone to find it about 60%
i tried to factory reset
knowing that the phone on kitkat 4.4.2 the original french update from Samsung , and i tried also to run the secreat codes but neither of the code worked!!
can anyone please tell me what is the problem and how can i fix it please
Click to expand...
Click to collapse
how old is the battery?
did you overclock?
check if it's warm or even hot

yaro666 said:
how old is the battery?
did you overclock?
check if it's warm or even hot
Click to expand...
Click to collapse
the battery and the mobile are about 2 year ...
and no i didn't overclock the phone
and it gets a slightly warm in fact

battery life is approx. 1000 cycles, so in 2 years it is quite possible.
If you can swap battery and test. If you don't OC, then it's not a security restart.
I bet it's battery

yaro666 said:
battery life is approx. 1000 cycles, so in 2 years it is quite possible.
If you can swap battery and test. If you don't OC, then it's not a security restart.
I bet it's battery
Click to expand...
Click to collapse
i thought at the first it would be some kind of software problem ...
i'll try to get another battery and try it out
really appreciate your answer
thanks :good:

Weird coincidence. This started happening to me on May 10th. My 2.5 yr old phone would restart over and over even when plugged into the computer. I did a hard reset and it still didn't help.
I replaced the battery and it fixed it!
Bosteco said:
Hello everyone,
My note II restates out of the blue without any good reasons :crying:
it generally happen win i play any game or use 2 or 3 apps at the same time ( like sound cloud , facebook and messenger )or ( game and messenger ) or playing for a long time ... knowing that the battery is fully charged or at least more then 80% ... it suddenly restarts with about 2 % .. and i take that battery out and in and open the phone to find it about 60%
i tried to factory reset
knowing that the phone on kitkat 4.4.2 the original french update from Samsung , and i tried also to run the secreat codes but neither of the code worked!!
can anyone please tell me what is the problem and how can i fix it please
Click to expand...
Click to collapse

Problem Solved
it was really the battery
once i changed it every thing went back to normal .
thanks everyone for your answers :good:

Its also another weird coincidence as this issue has happened to me, my note 2 is also 2.5 years old and my phone kept restarting too, but i really didnt care much and instead, i continued to use it over and over and overclocked it to 1800 mhz and i have no idea how but is stopped restarting. It was weird, at least is saved me money buy not having to buy a new battery. But as i expected, a new problem arises, systemui keeps crashing. But the battery is still fine, all i did was flashed a new rom.

Impressive battery life with MM

disclaimer: I am not a power user of my phone..
for a long time I was getting a reliable 2 full days of battery life (recharge every other night).... ~2 months ago, annoyingly, that dropped to 1.5 days at best, which really meant charge every night.
With the MM update, I am seeing 2.5-3 days between charges.
I'm not trying to make any claim about how long a phone should last.. that will vary with the user... my only point is to say that whatever your battery life was before..the MM update may do good things for you.
Bravo to Google and Tmo on the update.

How to prevent apps from being unistalled in stock rom? In other roms u can lock the package installer .
In stock simply u just hold and drag the app to unistall button . installation of an app can be locked but unistallation cant be locked . is there anyone to solve the issue . sorry for bad english

Tab S 8.4( SM-T700 ) is very slow

Hi guys,
I've been having this tablet since almost 5 years, at the beginning it was very fast. Fast forward a few years I noticed it has slowed down a lot ( very laggy when playing game like it was lack of ram), it's very hard to navigate on chrome on certain websites, it's so slow that I just stop using it sometimes. I was looking forward for the Tab S3 but it's out of my budget right now. I've tried to format the tablet twice with no success at all. I have developer mode enabled. I've tried to put the animation time down to 0.5x, it hasn't change anything at all. I was wondering if there's anything I could do before it joins the graveyard. I love Samsung products, I'm using a S9 right now and I have the galaxy gear S3 as well but this tablet is killing me.
Thanks

Have you tried a factory reset? deleting all cache? removing unneeded apps? check to see how much ram is being used directly after reboot to see if some apps that are loading can be removed and loaded only when needed?
There are a lot of things that can cause this. I'm running los Nougat on mine and it's perfectly fine, no issues, very responsive.
One thing I'd suggest is don't use Chrome. It uses a ton of memory. I'd suggest switching to los Jelly browser, it's very bare bones, as a browser on a tablet should be.

Hi,
I did try a factory reset along with deleting the caches, I have to take a look into my apps though, I have maybe 800-1gb of ram free when rebooting. I use Nova Launcher hence I pretty much have the same setup than on my cellphone. By slow I mean by example when playing 8 pool, when I hit the ball it move slowly exactly like the tablet would ram. I recl seeing that on my old PC back in the time when I was lack of ram, lol.

I have the same tablet as well, perhaps I shall try a factor reset one day.
It's hard to believe newer tablets will run faster, while the specs aren't that significantly higher. Not much more ram, processor not much faster.
It's almost as if they've deliberately slow down the device as it gets old (like that Apple scandal a while back), but I'm sure that's not the case here, as XDA guys would have dug out that dirt pretty quickly.
I shall try out a reset, and see if it's any better. My last resort will be to replace the battery, I've ebayed one a while back, but never gotten to use it yet.
I will try out a different browser too. I do agree Chrome has gotten quite fat lately. Looking at the Chrome task manager on the desktop reveals some scary amounts of memory used.

Removing the sd card helped me a lot

Removing SD? Wth? If that's the solution, it can go as well to the garbage.

Same here, I just getting this second hand Tablet 2 weeks ago. The Tab is in 99% perfect condition. All running good. It was running stock 6.0.1 MM. Then when i'm trying to swipe the home screen, it's lag and the lag is very noticeable. Then, I'm thinking "Why is this device very slow even they have a high spec?". This is the first time i use this tablet. The reason why i bought a second hand is because, i can't afford Galaxy Tab S2 or Tab S3 and i'm such a poor guy so the Tab S 8.4 is enough for me ?. But, i know how to tweak it better so it makes the CPU awake like before they come. That day i downgraded the Tab to Stock Kitkat 4.4.2 and i never forget to root it. After that, installing eRobot rom v.3.1 Stock Kitkat and also flashed Skyhigh Kernel which is gives you a powerful control of device CPU/GPU. After finishing the setup. and setting up the Skyhigh Kernel(Overclocking CPU/GPU) then reboot. After rebooting, my Tablet come to fresh again and it fresh like new ?. The CPU comes awake and performance always on. But, the powersaving can't really do anything and the battery may drain faster if you're a heavy user. Thank goodness there is still people developing the Kernel. I feel better now. I'm using this Tablet mostly for editing pictures, search information, and listening to music

The_Berd said:
Same here, I just getting this second hand Tablet 2 weeks ago. The Tab is in 99% perfect condition. All running good. It was running stock 6.0.1 MM. Then when i'm trying to swipe the home screen, it's lag and the lag is very noticeable. Then, I'm thinking "Why is this device very slow even they have a high spec?". This is the first time i use this tablet. The reason why i bought a second hand is because, i can't afford Galaxy Tab S2 or Tab S3 and i'm such a poor guy so the Tab S 8.4 is enough for me ?. But, i know how to tweak it better so it makes the CPU awake like before they come. That day i downgraded the Tab to Stock Kitkat 4.4.2 and i never forget to root it. After that, installing eRobot rom v.3.1 Stock Kitkat and also flashed Skyhigh Kernel which is gives you a powerful control of device CPU/GPU. After finishing the setup. and setting up the Skyhigh Kernel(Overclocking CPU/GPU) then reboot. After rebooting, my Tablet come to fresh again and it fresh like new ?. The CPU comes awake and performance always on. But, the powersaving can't really do anything and the battery may drain faster if you're a heavy user. Thank goodness there is still people developing the Kernel. I feel better now. I'm using this Tablet mostly for editing pictures, search information, and listening to music
Click to expand...
Click to collapse
I also bought it second hand but in my case it is to watch Netflix series on hd with that magnificent amoled and the truth is that I am very happy once I have changed the battery. I'm on android 6 official. The only solution for the tablet to run well in official marshmallow is using the disable package that makes it very usable, a real improvement but for my use the battery lasts 20% more without freezing anything from Samsung, this costs to understand for me but it is like this. For multimedia this tablet is spectacular and that is my use, especially thanks to the 16 10 format, it is ideal. The S4 I do not like, it's very big and very expensive. Long life tab S of 8.4 hahaha ???