While you wait for answers, we may have found some information which could help you.
Click here for Replace Battery SuggestionsReplacement battery for Braun 5502 shaver?
Braun Shaver AC/DC Power plug broken, can I use a normal 12V adapter?
How to change the battery in my Braun Shaver?
Braun 5567U Electric Razor?
How to replace battery to a Braun silk epil lady shaver?
How do I take a Braun 5502 shaver apart?