And I've replaced batteries in 4 phones in 3 years (not all mine, after seeing my phone come back to life, everyone else around me wanted the same service). So

And I've replaced batteries in 4 phones in 3 years (not all mine, after seeing my phone come back to life, everyone else around me wanted the same service). So I see your anecdote and raise you my anecdote. It's not easy to replace, since the batteries are glued in and cases are hard to open, but my £10 kit of opening tools has paid for itself about 50 times over already.