3310 battery problem after converting to 3315

[gabi1759]

I've converted my 3310 to 3315 and I got all the features of Nokia 3315,but after the conversion my battery doesn't "hold".All is ok until I make a call.When I make a call, the battery "drops" suddenly.I mean i had 3 lines when I initiated the call and after 30 sec the battery drops dead, i get the bat empty message and the phone turns off.Does anyone have a solution to my problem? Before I converted to 3315 everything was ok.

[THE INSAAN]

once the battery is totally dead, it does take about 16 hours to fully charge, even tho the battery meter shows full it take 16 hours, also the reception playes a large part, if you have weak reception then the battery doesnt last very long, but if you have good reception then it can last quite a while,