so hello i have some probs with my phone, battery goes supa fast on normal mode( not flight) i gues its some sort of virus, becasue before some time everything was ok and phone starts lagging somtimes. So can you advice any anivirus apps, or say how to reinstall OS of my phone Im using Sony Ericsson W960i

what's your signal like? if it's constantly looking for service, that could be why it's draining the battery...

another thing to check would be the band speeds, if you're not using 3g or whatnot, you could turn them down a little, that might help too.

As bunder tells, make sure the 3G is turned off. There should be a place on the phone to chose JUST GSM (old mobile network, probally the best netcover/area compared to 3G) network, if it stands on dual mode or 3G or some other fancy stuff, it will drain battery. Most new phones also "prefer" to use crappy 3G net instead of full signal GSM.

Also, if your between a 3G net transmitter and a GSM transmitter / radiosingal tower (what is the name?) , you can experience some big problems with the net. It will jump back and forth from GSM-3G-GSM etc etc, this makes your connection much unstable and people that might call you will get errors / out of reach messages when calling. Not to mention the battery drain.

On my phone I used to have crappy net, turned off 3G and all the places I have been the latest weeks there have been close to or full net, aswell that my battery can last for almost a week compared to two days as it were before

Turn bluetooth off when not using it, it cains battery so badly when running, also close all applications and things like that, just like a pc in that respect, delete and or turn off stuff you dont need, should help.

Not using internet, No 3G , Signal is always full or at least 4 of 5, bluetooth is turned off and other crap like this, i just dont do anything with phone and it lasts for 2 days :S

i'd try the band settings then... but it could also just be the phone... my razr didn't last very long either... and i've never really tested my z6w, i leave it on the charger when i'm at home.

Do you have any kind of case for it?

My friend had a case for his phone and it had some magnet thing in it that just drained the battery in 1 day... When he took it out it was all good again.