Found the reason why my battery life was short

As topic says, I found the reason why my battery life was short.
Having had the Iphone 4 since launch, I've always been impressed by the battery life.
So when it started to go from 100% to 50% overnight, with no use I started wondering what caused this.
I my case it was the wireless network, before I used to have just one wireless router, but recently I bought a accesspoint using it as a signal repeater(booster), giving me 100 % wifi coverage at home.
Since the repeater has the same wireless SSID as the router it seems to confuse the iphone, making it switch between connecting to the router and the accesspoint nonstop and therefore draining the battery.
Disconnected the accesspoit and now things are back to normal.

If you have just one wireless router you can't turn the accesspoint off, you could try turning wifi off on the phone and see if that helps.
In my case the wifi range of the router and the accesspoint overlapped each other, making the iphone constantly switch between them.

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