The problem could be your battery if you let it run down.
Lipo batteries will not charge up if you let them run down completely.
You always need to have some power left in them so they can be charged up again.
If you can try another battery in it and if that works don't let your battery run down as far again
Originally Posted by nopsa
I start recording, and the light turns off. But it never saves anything on the memorycard. I use the camera as an headcam, and I let it record until the battery dies. (over 50min).
(sorry my english)