5 replies to this topic

[docluv01]

Ok Guys

I have a weird one for ya....I posted in some other forums, but note sure what to do.

A few weeks ago, we moved our office to a different part of building, where its a real deadzone. Even on wifi, and mobile data turned off, battery life has been horrendous. Looking back, it seems during my move, I also upgraded from Eclipse 2.1 to Liquid ICS around that timeframe. So I back tracked and installed eclipse 2.1 and tested. Here are my findings:

on Liquid ICS 1.5mr:
In deadzone in my office, with wifi turned on, mobile data disabled, I get barely 1 hour per 10%
Everywhere else, 4g/wifi mixed. More wifi, the better, but I get roughly 2.5 hours per 10%

I re-flashed Eclipse, this is what I found
on Eclipse 2.1
In deadzone in my office, with wifi turned on, mobile data disabled, I get approx 2.5 hours per 10%
Everywhere else, 4g/wifi mixed. More wifi, the better, but I get roughly 2 hours per 10%

Overall, the ICS battery usage seems to be much better under normal conditions. In a deadzone, seems to eat away much more battery, even when mobile data is disabled. I'm geussing that its prob checking for a tower much more often then GB?

Any help would greatly be appreciated.....Thanks!

[boobster]

You could also try changing your wi-fi scan interval to save a little bit more. I'm not sure what would be causing those drastic changes in battery life though

[johnlgalt]

Sounds like there is some active interference, or else there are a lot of WiFi access points that the phone is seeing but cannot connect to for whatever reason.

Wireless signals tend to eat more battery in ICS on BIONICs than WiFi.

[TragicRemedy]

Just a thought, could be a weird hardware issue as well.

[ismokel]

try toggling airplane mode then wifi on? or do you need phone service...what process is using the most battery? Android system?

[docluv01]

Hey Guys

Just wanted to update you on my findings....

Ok, after playign around, here is what i did. With WIFI turned on, I was getting barely half a bar in the radio signal. For a goof, with WIFI turned on, I went into phone info, and disabled the radio, and re-enabled it. within 2 sec, the radio came up and got half a bar again, but a few sec right after that, I got like 4 or 5 bars. After testing in this state, i get roughly 5 to 6% depletion per hour. WHich is MUCHHHH better.

I have a feeling that with WIFI turned on (mobile data seems to be disabled when in wifi mode), and u turn on the radio, that it connects to a different tower entirely. Because when I walk outside, and disconnect wifi, it goes to 4G, but then u can see it go from 4 to 5 bars, to 3 bars which is normal for me for that area.

Hope this helps someone....but it helped me a great deal.