Amazon.com: FDK OEM NiMH Replacement Battery Compatible with Braun Oral-b Triumph Professional Care Toothbrush with Narrow Tabs, (48L x 17D mm, 2700 mAh) : Everything Else
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Battery Replacement Guide for Braun Oral-B Genius Smart Toothbrush Type 3765 & 3771 9000 8000 6000 6 - YouTube
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