I have a Braun 5414 electric shaver. It does not work when plugged into the wall. Nothing happens. It may be charging the battery, but I do not know. It seems that after a short while, I can run it for a moment on battery power but then it dies. Does this sound like a problem someone has encountered? What to do? Is this something repairable?

Health & Beauty - Braun - Flex Integral 5414