My old phone (as of about three weeks ago) was a windows mobile 6.5 handset and it got about 1 days from its battery. Then I dropped it on to a hard stone floor (is there such a thing as a soft stone floor?) and it started to misbehave. The sound would turn off, including the sound of the person talking to me! No ringtone or any other sound until I rebooted it. Then it was okay for a day or two but then it would not answer calls for two days until I rebooted it again.
So I restored it from the custom ROM back to the manufacturers version of Windows mobile and installed Android (as an executable that was run after booting Windows mobile!). Now the battery life was less than a day! So I got a new (Huawei Sonic) phone for less than half what the old phone cost. A very nice, android based, phone.
Then I got a $2 prepaid SIM for the old phone. Recharged it, activated the SIM and called the old phone. It answered! Since then it has sat on my desk for 9 days - the battery life is down t