Battery Replacement Guide for Braun Oral-B Type 3756 Professional Care and TriZone Toothbrush

This guide will take you through how to open the Braun Oral-B Type 3756 Professional Care electric toothbrush and replace the rechargeable battery. Applicable to the Professional Care and TriZone 600, 1000, 2000, 3000 and 4000 models. ... For more detail please read the in-depth guide with photos on our website at where you will also find guides for other models. ... Skip to Replacing with Original Size Battery: Skip to Modifyin