I recently got an old Magnavox camcorder at a Goodwill - no, I don't know why either - and I needed a battery. Now, I've had bad luck in the past buying third party batteries, mainly, they will charge once then just die on me. The battery I received from Battery Kings was fully charged out of the package, so was unable to determine it capabilities immediately. After a week of playing around with it, though, I have been thoroughly surprised. It will work with the camcorder for several hours, recording and playback. Then I pop it on a charger, and repeat. Overall, my experience has been great, and will definitely buy from them again if I need more obscure battery formats.