So I was using my Dvx100a for one of the first times today because i was waiting for my charger to come, now that its here, i charged all 3 of my 1600MaH batteries and went to go film some skateboarding today. Well the first battery lasted about 2 hours, No LCD filming strictly just viewfinder, then the others only lasted about 20 minutes each. I dont understand why. It was also a little cold in the morning so maybe this is why they didnt last long? It was probably around 43 degrees fahrenheit. Or could it be the charger that i am using? I had to order a 3rd party charger off ebay and maybe this is the problem? Not Sure. HELP ME!