While you wait for answers, we may have found some information which could help you.
Click here for Repair Braun ThoroughlyBraun Shaver AC/DC Power plug broken, can I use a normal 12V adapter?
How to replace battery to a Braun silk epil lady shaver?
Braun 5567U Electric Razor?
Braun 5550 Shaver Battery?
Replace Battery in Braun 360 Shaver Model: 8975?
Batteries for Braun shaver 5614?