I recently purchased a Sony DCR-TRV350 camera at a local yard sale. It came with the OEM battery and 3rd party brand charger. I took the camera home and charged the battery for several hours. But when putting the battery in the camera, it will not turn on. Now if I plug in the AC adapter charger, the camera turns on and works perfectly fine. So using multimeter the OEM battery cannot hold the charge. So I bought a 3rd party brand replacement battery from Amazon. Kastar, it shows it is suppose to work for this specific camera. Received the new battery, it has a charge already but when I put it in the camera, same issue. It wont turn on with just battery. It appears its charging, as the light comes on when I connect the charger to the camera. With the old OEM battery the light would come on for a few seconds and go off. But with the new battery, it stays on. So its definitely charging, checking with multimeter confirms this. But the camera still will not power on battery only. Do you think this is the wrong battery? Maybe not strong enough? Or do you think the camera has issues with the battery part? When I have the charger plugged into the camera all the functions work perfectly fine. I can record, I can play back, all the play back buttons work. All the functions work. Just wont run off battery. Any suggestions?