While you wait for answers, we may have found some information which could help you.
Click here for Replace Battery Braun
Braun 5550 Shaver Battery?
How to change the battery in my Braun Shaver?
Replacement battery for Braun 5502 shaver?
Braun 5567U Electric Razor?
I cannot find any tabs or screws in order to open my Braun 5550 razor. The ?
Replace Battery in Braun 360 Shaver Model: 8975?
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix electric shavers/razors.