iphone 4 battery issues

[basildonbond]

The battery on my iphone seems to be losing its charge quicker than usual (I know battery life isn't great anyway)

It's going down to below 10% before I put it on charge but it's barely making it through the day and I'm not doing loads of energy-hungry things

I've closed down all the apps that were running in the background but it's still a bit sniffy

any ideas?

Try closing all your applications (or a reboot) just before you go to bed then go into airplane mode.

In the morning hopefully your battery won't have moved a lot. If it has then you probably have a dodgy battery.

The Apple store can plug it into one of their diagnostic macbooks and can tell you.