Battery for Oral-B Triumph 5000 Toothbrush, 1,2 V, NiMH: Amazon.de: Health & Personal Care
Battery Replacement Guide for Braun Oral-B Triumph v2 Toothbrush incl. 4000, 5000, 6000, 7000 Pro - YouTube
Braun Oral-B ProCare/Triumph Repair: How to replace Rechargeable Battery - YouTube
CELLONIC® 3731, 3738 Replacement Battery for Oral-B Professional Care 9500, 8500, 8300, 8000 / Triumph 9900, 9500, 9400, 9000, 5000, 4000 Replacement Battery 2500 mAh - Razor Battery: Amazon.de: Health & Personal Care