Ray battery recently shortened and it has also started time travelling

[Logical_Leopard]

I've got a bit of a problem with my Xperia Ray and despite hours of googling I still can't find a solution so I thought I'd see if you guys could help

Had it for about 6 months now and it worked great up until a couple of weeks ago when suddenly the battery life got way shorter, like I used to be able to get close to 3 days if I didn't do anything but sending messages and using some basic apps and even with pretty heavy use it still lasted well over a day.

Recently though it lasts under 20 hours with absolutely no usage, when I leave the phone overnight it loses about 40% charge when previously the use was under 10 for the same time period and even if its turned off it loses charge at a similar rate.

The other problem that started around the same time was that whenever the phone turns off from lack of charge or I take out the battery the date resets to 6 January 1980 and the phone seems unable to automatically correct it. Previously my phone was able to retain the date even after the battery had run down completly.

The only thing I can think of that changed before the problems started was that I used a solar powered usb charger for a few days because I was tramping but I have no idea what that could have gone wrong or how I could fix it.

I've tried a full factory reset, upgraded the android software to 4.0.4 and used various battery apps to try to find anything that might be using all my battery with no success.

Its driving me crazy so any help would be great.

Also here's a picture of a recent day of usage, except for a short run I didn't use the phone for anything

http://i.imgur.com/jZpybCN.png

[Rickard]

It's hard to say for sure but this sounds like a problem with the battery. You could try the following things and see if it helps:

- Let the phone discharge the battery completly and then charge the phone over night without starting it.

- Let the phone discharge the battery until the battery level is about 50%, turn phone of, remove and reinsert the battery and then let it charge over night without starting the phone.

If none of the above helps i recommend that you try the phone with another battery.

If the battery is removed or completly drained it will reset time/date. The phone normally turns off before the battery is completly drained so you would not notice this during a normal discharge. When you start the phone it might take some time to get time/date from the network.

[Logical_Leopard]

Thanks for the reply!

I've tried both those methods previously while searching for an answer with no success but I can buy a new battery relatively cheap so I'll do that and see how it goes

I'll post results in a few days

[Logical_Leopard]

Well I got a new battery yesterday as suggested and tried it out from full charge but unfortunately there was no change in the battery life, it still ran all the way down in less than 20 hours with minimal use

Begining to wonder if its a hardware fault within the phone itself

[Rickard]

Sorry to hear that the problem remains.
As you have tried master reset and software update something must have happened to the phone itself. I recommend that you contact your dealer or local Sony Xperia support for assistance with repairs.