Amazon.com: HQRP 49x17mm Battery Compatible with Braun Triumph ProCare 9900 9500 9400 9000 3731 Toothbrush Replacement : Health & Household
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Braun Oral-B ProCare/Triumph Repair: How to replace Rechargeable Battery - YouTube
Amazon.com: Replacement Rechargeable Battery Compatible with Some Selected Braun Oral-b Triumph Professional Care Toothbrush, Panasonic NiMH with Narrow Metal Tabs, 50 mm Long, 17 mm Diameter : Health & Household
Amazon.com: FITHOOD Replacement Battery for Oral-B 3738 Triumph 9000 Professional Care 8000 Professional Care 8300 Professional Care 8500 Professional Care 9500 Triumph 4000 : Health & Household