Ed Lopez back here. It has ben a wile sense I ben on this list, it sounds like you may have a bad sell in the battery. I only use memory cards made by Sandisc. I get the hyer speed memory cards. That is, the memory on the cards has a more faster transfer rate. This also may save on battery life as well. I get about 7 to 8 hours on my PTP1 in recording and playing. Try giving the battery a good drain and charging it for a good 8 hours. If this doesn't help, I would get another battery.
