17 Hours 9 Minutes 28 Seconds.

[touch_rules]

Originally Posted by NuLLKiLL

I'm not saying the phone last longer with wifi on but you can go into wifi settings and tell it to never sleep which someone said gave them much better battery and others confirmed. I never used wifi in the past cause it drianed the battery like a hot potato but on this phone it used about the same amount of battery as bluetooth from what I've seen.

Do you leave wifi on even when you are not near a wifi network? I have been turning on and off depending on if I am in range of network I can connect to. Should I just be leaving it on all the time?

[NuLLKiLL]

Originally Posted by touch_rules

Do you leave wifi on even when you are not near a wifi network? I have been turning on and off depending on if I am in range of network I can connect to. Should I just be leaving it on all the time?

I was leaving it on all day regardless if I was around wifi or not. I left it on when I used 4G. I was just testing leaving everything on all day and using the phone as much as I could. My goal was to kill the battery as fast as possible. I was thinking we would be toast at 4 or 5 hours max I mean with or without a WIFI and bluetooth signal just leaving those radios running plus using the phone should kill it fast. After 5 hours I was at over half a charge so I started abusing it more used the GPS even though I didn't need it while drive ect...

I really don't know too much about android or the batterys but did some tips that I saw posted.
1. Making sure Time Without A Signal is Minimal
2. Adjust Backlight To Auto
3. Set Wifi To Never Sleep (This seems really weird to me as well)
4. I was not using a ATK
5. I was not using a CPU Scaler

I also used the camera and camcorder.

Another thing I drained the battery dead dead dead 2 or 3 times and then charged fully.
When I say dead I mean until the device would not power all the way up before shutting back down. When charging up I would unplug charger and then turn phone on plug until green again like 5 mins then unplug turn off charge again. Don't know if the last step does anything but have been advised it is good.

Another note I also like to leave Wifi on from time to time same with bluetooth as a battery conditioning measure. I makes the battery discharge faster helping to reduce any memory effect from not having them on. This can prevent huge battery drops from turning on the wifi when not having used it in a long time which can happen.

This article is a good read on batteries and conditioning as well as battery memory. http://davidweiss.blogspot.com/2006/...ditioning.html
It's for the macbook (I know shoot me now!) but the principles are the same.

[ericmcintire]

Looks like there are some people still confused about leaving the wifi on. Here's what it does... When you HAVE a wifi connection, leave the wifi connected to it. Android only uses the connection when it needs it and it take MUCH less power to run the wifi constantly than it does to turn on and off the 3g radio whenever you are syncing emails facebook, twitter etc... So I have left my phone connected to my wifi network whenever I'm home and I have it set to never sleep. When it sleeps, the phone goes back to use 3g radio again and that is a lot more thirsty than wifi.

[touch_rules]

Originally Posted by ericmcintire

Looks like there are some people still confused about leaving the wifi on. Here's what it does... When you HAVE a wifi connection, leave the wifi connected to it. Android only uses the connection when it needs it and it take MUCH less power to run the wifi constantly than it does to turn on and off the 3g radio whenever you are syncing emails facebook, twitter etc... So I have left my phone connected to my wifi network whenever I'm home and I have it set to never sleep. When it sleeps, the phone goes back to use 3g radio again and that is a lot more thirsty than wifi.

Thanks guys. I have been turning my wifi on whenever I know I am within wifi range, church, home, office......but I turn it off when I am not so it is not constantly searching for a network.

I will have to try some of the battery discharge tips, I have already purposely drained it 2-3 times to the point that it shuts itself down. Thanks again.

[grunt]

How and where do you set wifi to "never sleep"?

[touch_rules]

Originally Posted by grunt

How and where do you set wifi to "never sleep"?

Menu\Settings\Wireless & Networks\Wifi Settings\ Hit the Menu button on the phone again and then Advanced\WiFi Sleep Policy

Enjoy

[Mystery]

Well after applying all the battery tweaks into my EVO, I have finally gotten GREAT battery life.



I did everything I would do on a daily basic, moderate usage. I did A LOT of texting, web browsing, listened to music, wifi, few games, camera, few 5 - 10 minute calls, downloaded and updated a few apps, email, google navigation for 15 minutes and I have auto sync on as well. Over all, I think this above acceptable, I can go a whole day without having to charge my phone.

[touch_rules]

Originally Posted by Mystery

Well after applying all the battery tweaks into my EVO, I have finally gotten GREAT battery life.

I did everything I would do on a daily basic, moderate usage. I did A LOT of texting, web browsing, listened to music, wifi, few games, camera, few 5 - 10 minute calls, downloaded and updated a few apps, email, google navigation for 15 minutes and I have auto sync on as well. Over all, I think this above acceptable, I can go a whole day without having to charge my phone.

Any of the specific tweaks you think did the most for you? Just curious.

[Success100]

Originally Posted by NuLLKiLL

I was leaving it on all day regardless if I was around wifi or not. I left it on when I used 4G. I was just testing leaving everything on all day and using the phone as much as I could. My goal was to kill the battery as fast as possible. I was thinking we would be toast at 4 or 5 hours max I mean with or without a WIFI and bluetooth signal just leaving those radios running plus using the phone should kill it fast. After 5 hours I was at over half a charge so I started abusing it more used the GPS even though I didn't need it while drive ect...

I really don't know too much about android or the batterys but did some tips that I saw posted.
1. Making sure Time Without A Signal is Minimal
2. Adjust Backlight To Auto
3. Set Wifi To Never Sleep (This seems really weird to me as well)
4. I was not using a ATK
5. I was not using a CPU Scaler

I also used the camera and camcorder.

Another thing I drained the battery dead dead dead 2 or 3 times and then charged fully.
When I say dead I mean until the device would not power all the way up before shutting back down. When charging up I would unplug charger and then turn phone on plug until green again like 5 mins then unplug turn off charge again. Don't know if the last step does anything but have been advised it is good.

Another note I also like to leave Wifi on from time to time same with bluetooth as a battery conditioning measure. I makes the battery discharge faster helping to reduce any memory effect from not having them on. This can prevent huge battery drops from turning on the wifi when not having used it in a long time which can happen.

This article is a good read on batteries and conditioning as well as battery memory. http://davidweiss.blogspot.com/2006/...ditioning.html
It's for the macbook (I know shoot me now!) but the principles are the same.

actually no its not. computer batteries and cell phone batteries are two different battery techologies. If you look up the details on Li-Ion batteries, you' discover that they dont suffer from memory effects, and also deep cycling a Li-ion battery is the worst thing you can do to it. Here is a article on Li-ion batteries in particular. You have to remember that cell phone batteries are not the same as say, a cordless phone battery or laptop battery.

http://www.batteryuniversity.com/parttwo-34.htm

[Mystery]

Originally Posted by touch_rules

Any of the specific tweaks you think did the most for you? Just curious.

Well there is three different things that I did yesterday that helped the battery out. I flashed to the new fresh rom, I formatted my sd card, and I charged my phone differently. You leave it on and charged it until it goes green, then disconnect the cable, turn off the phone, plug it again until it goes green again, then unplug it, turn it back on and make sure its green. I think all those three helped out A LOT. I do have the clock widget installed, and that also seems to help out. And I also disabled google talk from automatically singing in, and disabled it from starting up on boot up. Oh, and I also did the cdma trick and updated my prl.