Amazon.com: Replacement Rechargeable Battery Compatible with Braun Oral-b Triumph Professional Care Toothbrush, Panasonic NiMH with Narrow Metal Tabs, 50 mm Long, 17 mm Diameter : Health & Household
Braun Oral-B Triumph v1 Battery Replacement Guide
Oral-B Battery Replacement on Triumph 9000/5000 Professional Care Braun Toothbrush - YouTube
Health & Beauty :: Electric Toothbrushes :: Oral-B Triumph 5000