Griffin on 21 March 2008
I would imagine most batteries lose some life over time, but if you want a new one and you still have a warranty i would phone Sony. I use my controller all the time and never have any problems, mine lasts for 25-35 hours on a full charge, and i can charge it for 20mins and get about 7-10 hours out of it. Mine is a 60gb launch unit.
