Develop Bugs

48 hours of Battery life and still 45% left!!!

Hi Everyone,
I thought id share the amazing battery life im having, ive had it going for 48 hours so far and still got 45% of my battery still left, ill tell you all my set up and i wish you can get the same.
Installed LeeDroids rom (1.9a) which is absolutely amazing i must say, i love it.
Got the new radio 32.44.00.32u_5.09.05.30_2.
SetCPU running and have the normal standby on the phone at 642mhz and 245mhz when the screen is off.
I also have a task killer on set to kill most apps when the screen turns off and i have read about androids memory management but it makes me feel better when i run it and i personally think it helps.
Finally, and possibly the most important is an app called AutoKiller that interacts with androids internal memory management system and i have that set to ultimate.
I think thats it, and i have been using the phone averagely, and have turned off wifi and mobile internet and only use it when i need it.
Good luck everyone, hope this is helpful in someway.

It was interesting to read until you said this
pp84 said:
have turned off wifi and mobile internet and only use it when i need it.
Click to expand...
Click to collapse
I personally refuse to turn off internet (wifi or mobile, same thing) on my SMARTPHONE. Cmon, that is why I bought it, because of the internet, and the fun things to do on it. If I use it for calls/sms only, I would have gotten something much cheaper.
Anyway, with hard usage my battery lasts for like 20 hours, and that is enough for me. I don't mind connecting it to a charger before I fall asleep, and disconnecting it when I wake up. Still I use the 1GHz CPU and the options the phone has fully

pp84 said:
... have turned off wifi and mobile internet and only use it when i need it.
Click to expand...
Click to collapse
ljesh said:
I personally refuse to turn off internet (wifi or mobile, same thing) on my SMARTPHONE. Cmon, that is why I bought it...
Click to expand...
Click to collapse
I'll have to agree with ljesh on this. If you deprive your smartphone of internet access, you've just turned it into a feature-phone.
But, I think you should turn off WiFi when you're not using it. That's just the smart thing to do...

Is there a battery of the same size with a higher capacity?
Sent from my HTC Desire using XDA App

No, there isin't.

Just a quick update i ended up getting 63 hours out of one charge!
And i dont need to read what the weather is every 5 minutes thats the reason i dont generally keep mobile internet on... I just look up at the sky it tells me exactly what i need to know!

Well, I have tried this and wow - what a difference, lol.
I am mostly around WiFi connections all day, so just use that instead for all my syncs. Mobile internet is used when I am out of range for short periods of time.
Thanks for the tip - works wonders.

[sarcasm]
1. Turn on Airplane mode all the time and don't wake the device from standby. According to the specs, the device will last up to 340 hours (ie, over 2 weeks).
2. Leave the device completely off. It will be months before your battery completely drains.
[/sarcasm]
Don't mind me, I'm just joking around.
But seriously, it would be interesting to know the battery life of a device set to your specifications but with mobile internet on. Turning it off, just seems like cheating, similar to how CPU overclock enthusiasts achieve crazy clockspeeds with liquid nitrogen cooling. Sure, you achieved your milestone, but is that really how the device is intended to be used?

ohyeahar said:
[sarcasm]
1. Turn on Airplane mode all the time and don't wake the device from standby. According to the specs, the device will last up to 340 hours (ie, over 2 weeks).
2. Leave the device completely off. It will be months before your battery completely drains.
[/sarcasm]
Don't mind me, I'm just joking around.
But seriously, it would be interesting to know the battery life of a device set to your specifications but with mobile internet on. Turning it off, just seems like cheating, similar to how CPU overclock enthusiasts achieve crazy clockspeeds with liquid nitrogen cooling. Sure, you achieved your milestone, but is that really how the device is intended to be used?
Click to expand...
Click to collapse
Why do you count network off as cheating. Why should it be on if you don't need it?
I am leaving network off most of the time, just switch it on when I want to surf or update my calendar/emails. Use Wifi whenever available. And SetCPU to minimize clock speed while the display is off.
Most email come from Softbank Japan thru a MMS type email application. Its a push mail system and you do not need to have network on for receiving it.
With this settings I get up to 24h, depending on who long I travel and read ebooks.

Not my intention to sound antagonistic. "Cheating" may be too strong of a word. Here's what I'm trying to say.
Obviously, it's up to the user to decide how to use the device. But what's also obvious is that the device cannot be fully utilized without an always-on connectivity.
Without an always-on connectivity, a lot of the widgets and applications instantly become useless or crippled.
Sure, not everyone uses widgets or applications that require always-on connectivity. But I'm willing to wager that a majority of the Desire user community utilizes such widgets and applications; so turning off mobile internet is just not an option for these people.

ohyeahar said:
Not my intention to sound antagonistic. "Cheating" may be too strong of a word. Here's what I'm trying to say.
Obviously, it's up to the user to decide how to use the device. But what's also obvious is that the device cannot be fully utilized without an always-on connectivity.
Without an always-on connectivity, a lot of the widgets and applications instantly become useless or crippled.
Sure, not everyone uses widgets or applications that require always-on connectivity. But I'm willing to wager that a majority of the Desire user community utilizes such widgets and applications; so turning off mobile internet is just not an option for these people.
Click to expand...
Click to collapse
I tend to agree.
I need the network to always be on, and so leave it so - though sometimes, I will put the phone into airplane mode overnight if I remember. Generally though I don't as I usually charge overnight anyway.
On Sunday night though, I'd charged the phone during the day and so didn't charge overnight. I used the phone quite heavily during the day, and in the evening watched about 3 hours worth of DivX video via RockPlayer. My phone complained of less than 15% charge after 26 hours, which to me was quite impressive given my usage, and I don't use *any* tweaks such as SetCPU or a task killers (which are placebos anyway).
Personally, if I can get a full day from my phone I'm happy - and I can do that with the Desire without having to do anything.
Regards,
Dave

How to reduce battery drain while using rom?

Hi. Battery drain in sleep mode is really good. Around 0.5 % an hour. But when using 3g internet, battery drain is massive, around 3% per minute. My friend was using his iPhone with similar usage to mine, his drained from 75% to 50%, mine drained from 73% to 20%!
I have brightness on low, GPS and Bluetooth off, and I am using radio 26.13.04.19 which is one that I have found to be good and reliable. Is there anyway to reduce my drain? It's way too much right now. Thank you!
Sent from my desire hd using XDA

3% per minute while screen is off means your phone isn't going into sleep mode.
I guess there's an app that keeps your 3G modem active.

Dlog said:
3% per minute while screen is off means your phone isn't going into sleep mode.
I guess there's an app that keeps your 3G modem active.
Click to expand...
Click to collapse
No, I think you misunderstand. 3% per minute while using my phone (ie: when screen is on). Like I said, when screen is off, drain is only 0.5% per hour.

Try to switch to EDGE, I had it too before. The drain was caused by a bad and cell tower signal. By switching to EDGE the signal went better, same as the battery drain. Only uses 3G if you're signal/reception is good(above 3 bars).

you can turn off Wifi GPS BT and of course the screen brightness .
iyou need to activate sleep mode beacuse when in this mode you almost dont have battery drain ....

guandms said:
you can turn off Wifi GPS BT and of course the screen brightness .
iyou need to activate sleep mode beacuse when in this mode you almost dont have battery drain ....
Click to expand...
Click to collapse
You read before you answer? He said BT, gps and WiFi are turned off and brightness is low.
Which Rom are you using?
Sent from my Desire HD using XDA

Try different ROM or keep RADIO with corresponding RIL.
Im on Coredroid and battery life is good.

shino82 said:
You read before you answer? He said BT, gps and WiFi are turned off and brightness is low.
Which Rom are you using?
Sent from my Desire HD using XDA
Click to expand...
Click to collapse
Currently using IceColdSandwhich
dzuva said:
Try different ROM or keep RADIO with corresponding RIL.
Im on Coredroid and battery life is good.
Click to expand...
Click to collapse
I've tried loads of different roms, I don't think that the ROM is the problem.
I'm not using a sense rom right now, so RIL doesn't matter.

Jesus. I just spent 1 minute on facebook and had 4% battery drain! Using mobile network (getting 3 bars of 3g signal). Why does android have to do this to me. I'm jealous of iphone battery life

2-3% per minute during 3g session is pretty normal ,even I am having the same drain ,I have spent months and tried all the tricks in the book (uv script ,reduce CPU speed)to reduce the drain all my efforts have gone down the drain I think we have to live up with this sort of drain...
Sent from my HTC Desire HD with Beats Audio using xda premium

Did you make a full wipe before installing custom rom? I would do it then install another time. Afterward change your radio version and have a look at your battery behaviour.
Sent from my Desire HD using XDA

IceColdSandwich gives me the best battery life Ive ever had.
Just to make sure, is your battery old? Maybe like a year old?

i agree.
i've given up trying to solve my batt issues. i've got icecoldsandwich 6.1. BT,GPS and WIFI is always on. cellular data is on WCDMA preffered. under volted, under clocked and even low vibration mod. screen brightness is at 10%. still drains at 3% per min when using the data. i've got a brand new battery from HTC service centre during this time and it doesnt help. i even started to think that my charging circuit was screwed up :|
got really paranoid..
but i guess the battery drain is pretty normal given the battery capacity

There are some build.prop tweaks that you could try. Related to sleep mode and hsdpa power collapse. Look through this page and add whichever are network and battery saving related (mentioned). Look through your current /system/build.prop and only add what isn't already there. If it's already there, just change the values.
http://forum.xda-developers.com/showthread.php?t=1227269
Sent from my Desire HD using xda premium

Schimmel81 said:
Did you make a full wipe before installing custom rom? I would do it then install another time. Afterward change your radio version and have a look at your battery behaviour.
Sent from my Desire HD using XDA
Click to expand...
Click to collapse
Yeah I did a full wipe and I've used loads of different batteries
kush4u123 said:
IceColdSandwich gives me the best battery life Ive ever had.
Just to make sure, is your battery old? Maybe like a year old?
Click to expand...
Click to collapse
Yeah, I've had my phone for a year, and I'm still using the original battery. It's just unfair that iPhone users get such great battery
sashank said:
There are some build.prop tweaks that you could try. Related to sleep mode and hsdpa power collapse. Look through this page and add whichever are network and battery saving related (mentioned). Look through your current /system/build.prop and only add what isn't already there. If it's already there, just change the values.
http://forum.xda-developers.com/showthread.php?t=1227269
Sent from my Desire HD using xda premium
Click to expand...
Click to collapse
Thanks! I will try some of these.

To save my battery I have started to use Tasker, this is a profile manager. For example You can set up your phone to switch On Data and sync your apps every 30 min or more, instead of have it On all the time. There is a lot of options to set up your phone. For me it is working great and it helped me to lower daily battery drain. You can find other Profile Managers on Google Shop.
Wysłane z mojego HTC Desire HD za pomocą Tapatalk

g.zielin said:
To save my battery I have started to use Tasker, this is a profile manager. For example You can set up your phone to switch On Data and sync your apps every 30 min or more, instead of have it On all the time. There is a lot of options to set up your phone. For me it is working great and it helped me to lower daily battery drain. You can find other Profile Managers on Google Shop.
Wysłane z mojego HTC Desire HD za pomocą Tapatalk
Click to expand...
Click to collapse
That doesn't help with the 3% per minute while awake.
And switching data on every 30 minutes often means that you can forget using apps like whatsapp and viber. Most of the time people rely on messages arriving shortly after they were sent.
Image your boyfriend/girlfriend sitting outside in the car and texting you "hurry up! we need to go!!" and you get that message 30 minutes later....
And consider using Llama....it's mostly the same as tasker but free

There is an app called battery calibration that can help with battery life. It helped me

Have compared battery drain with different radios? Some radios I have tried give better signal with higher drain. The M2 one I am using now gives a nice balance but it may differ for depending on your location/reception.

Lewelynn said:
Have compared battery drain with different radios? Some radios I have tried give better signal with higher drain. The M2 one I am using now gives a nice balance but it may differ for depending on your location/reception.
Click to expand...
Click to collapse
Yeah, tried many different radios. Been using quite an old M2 one and it seems okay.

[Q] Constantly in a bad reception zone

When I'm at school (5 days a week) most of my classes are in a building where I do not get a lot of reception, aka, my battery gets killed by the phone to keep up the signal. I do get reception, around 1-2 bars, but that still drains the battery extremely fast. Is there any app or something that I can do to help reduce the amount of battery drain?
I don't want to put the phone into air plane mode because I can still send and receive text messages, but it's just very slow.

Have you tried putting it in cdma only mode?
Sent from my Galaxy Nexus using XDA

You could save a lot of battery life by either connecting to a wifi hotspot (if available) or by turning off background data. The problem your phones having is that it has to turn the gain way up on its cellular radio in order to transmit and receive data. By reducing the amount of background data usage (or off loading it to another network with better signal--i.e. wifi) you'll save a lot of juice.
If you can't do either, there are some things you can do with Tasker to reduce data usage to windows of time instead of always on. May be something to consider.
- chris

isinisterx said:
When I'm at school (5 days a week) most of my classes are in a building where I do not get a lot of reception, aka, my battery gets killed by the phone to keep up the signal. I do get reception, around 1-2 bars, but that still drains the battery extremely fast. Is there any app or something that I can do to help reduce the amount of battery drain?
I don't want to put the phone into air plane mode because I can still send and receive text messages, but it's just very slow.
Click to expand...
Click to collapse
Drop it into 2G only or connect to WiFi.
taappel said:
Have you tried putting it in cdma only mode?
Click to expand...
Click to collapse
He's in Canada, so using the GSM model.

Give juice defender a try. It used to almost double the battery life on my old X10 when I worked in a building that I could only get 1 bar at best.
Sent from my Galaxy Nexus using xda premium

GreatBigDog said:
Give juice defender a try. It used to almost double the battery life on my old X10 when I worked in a building that I could only get 1 bar at best.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
JD sucks on the Nexus, unless it has gotten an update since last month.. WiFi doesn't want to reconnect. I've seen others say the same thing.

WiredPirate said:
JD sucks on the Nexus, unless it has gotten an update since last month.. WiFi doesn't want to reconnect. I've seen others say the same thing.
Click to expand...
Click to collapse
yessss someone else with the wifi problem.when in like a perfect wifi signal zone, my friends gnex connect oerfectly and mine just says saved, wont connect to the networj
Sent from my Galaxy Nexus using xda premium

Battery life without data on?

Hello there I'm looking for a reasonably priced unlocked Android phone to take abroad with me this coming fall. I won't be using data services so that being said, how long would the battery be expected to last with moderate to high usage? (good bit of texting, some calls/pictures, and some wifi Web browsing). Thanks! Searched around and couldn't find this bit of information.
Sent from my SPH-D710 using Tapatalk 2

How are you expecting to make calls? If you literally only have a voice-only SIM when you're there and you'll be using the phone heavily on WiFi, the battery life won't be drastically better than if you were on mobile data. The screen is the largest drain on the phone, and if you're still using data over WiFi you'll maybe get to 2 days of usage on a stock phone.
Sent from my Galaxy Nexus using xda premium

martonikaj said:
How are you expecting to make calls? If you literally only have a voice-only SIM when you're there and you'll be using the phone heavily on WiFi, the battery life won't be drastically better than if you were on mobile data. The screen is the largest drain on the phone, and if you're still using data over WiFi you'll maybe get to 2 days of usage on a stock phone.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
There's an option in settings to turn off data. You still get voice, you don't need to turn on airplane mode or get a voice-only sim.
But I agree, battery won't be drastically better, I have data turned off and my batt times have been similar to the average times posted here

harveydent said:
There's an option in settings to turn off data. You still get voice, you don't need to turn on airplane mode or get a voice-only sim.
Click to expand...
Click to collapse
Yes I know you can turn off data . I asked how he intends to make calls because if he will actually have a SIM in and connecting to towers for calls, battery life will not be drastically better than if he had data turned on. If, however, he was making VOIP calls over WiFi with airplane mode on, he'd likely see a large improvement in battery life.
Sent from my Galaxy Nexus using xda premium

Yeah I realize keeping the antenna on will consume battery...I would probably be surfing the Web on wifi for 30 minutes to an hour max each day. Should I look at getting the extended battery? As long as I can get a full day (18-24 hours) with moderate to high usage I'm fine.
Sent from my SPH-D710 using Tapatalk 2

[Q] WiFi stays on even in sleep mode!!!

So my stock JB 4.1.1 GSM Nexus is having some issues regarding the wifi, specifically the sleep policy. I have it set to turn off when the phone is sleeping but whenever I go to look at my battery consumption, it shows the wifi as being active all day long. Has anyone else experienced this/ can you reccomend a fix? Thanks!

Same problem here; wifi is always on for me on stock 4.1.1. Anyone have advice?
Sent from my Galaxy Nexus using Tapatalk 2

Not sure why you'd want to turn WiFi off when the screen is off?
But yes, the "advanced" settings on WiFi are a bit finnicky for people. I've noticed that they don't always stick. Just gotta try toggling it a few times over and over.

martonikaj said:
Not sure why you'd want to turn WiFi off when the screen is off?
Click to expand...
Click to collapse
To save battery.
martonikaj said:
But yes, the "advanced" settings on WiFi are a bit finnicky for people. I've noticed that they don't always stick. Just gotta try toggling it a few times over and over.
Click to expand...
Click to collapse
Thanks, I'll try this

pinke123 said:
To save battery.
Click to expand...
Click to collapse
You think wifi consumes more juice than cellular radios do? or do you shut those down as well?

animal24 said:
You think wifi consumes more juice than cellular radios do? or do you shut those down as well?
Click to expand...
Click to collapse
I know it does because my battery lasts longer when I manually shut off wifi.

Wifi will never consume more battery than the cellular radio.
Sent from my Galaxy Nexus using XDA Premium via Verizon Wireless

Wifi consumes more battery idling. 3g consumes more battery surfing.
Sent from my Galaxy Nexus using Tapatalk 2

pinke123 said:
I know it does because my battery lasts longer when I manually shut off wifi.
Click to expand...
Click to collapse
Over a whole day's use, if you're on WiFi the whole time you'll use less battery then if you're on the mobile network. The idle battery use is higher but your time connected to transfer data (and therefore battery used) is much much lower.

idling in 2g saves allot more battery than Wi-Fi

Turning off the phone is the best battery saver. But everyone knows wifi is the best option if you have it. 3g runs your battery down way faster. Even though most people have known this for yrs, its even in the tips section when you go into your sprint account. "Wifi to save battery" or something like that.

I use juice defender to turn off all radios when the screen is off. WiFi and 3g will pop back on within seconds of the screen being back on. I know not everyone finds juice defender useful, but I love it
dschoenike