My wife's iPhone 4 was purchased new in August 2010. It doesn't seem to last a day now and she only really uses for calls and the occasional photo. She normally has wifi on and 3G on (she shares my 3G via 2Degrees) so she can run some little apps like weather etc but she hardly ever surfs the net on the phone.
Anyway the battery life is becoming poorer and I was wondering if I should replace the battery.
There are a few on Trademe but as an Android person myself I really don't know how hard it is to do (apart from some iFixit instructions I found and who is selling reputable batteries, Trademe or elswhere.
So some good user experiences would be of use.
Thanks