Electric Toothbrush Battery 3731,3738 For Oral-b Triumph 4000,5000 ,9000,9400,9500,9900,professional Care 8000,8300,8500,9500 - Digital Batteries - AliExpress
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
Replacement Battery for Braun Oral-b Triumph Professional Care Toothbrush, FDK NiMH 2150 mAh with Narrow Tabs, 43 mm Long, 17 mm Diameter, - Newegg.com
Amazon.com: Replacement Battery for Oral-B 3738 Triumph 9000 Professional Care 8000 Professional Care 8300 Professional Care 8500 Professional Care 9500 Triumph 4000 : Health & Household
2PC Electric Toothbrush Battery for Oral-B Triumph Oral-B Professional Care - Walmart.com