Amazon.com: Replacement Battery compatible with Braun Oral-b Triumph Professional Care Toothbrush, 42 mm L X 17 mm D : Health & Household
Hsabat 0 Cycle 42170 Battery For Braun Oral B 3745 3728 3762 7000 3731 P7000 D25 D28 Electric Toothbrush 1.2v 42mm X 17mm - Rechargeable Batteries - AliExpress
3100mah 42170 Battery For Braun Oral B 3745 3728 3762 7000 3731 P7000 D25 D28 Electric Toothbrush 1.2v 42mm X 17mm Batteries - Digital Batteries - AliExpress
Oral-B Triumph v2 Repair - iFixit
Top Brand 100% New 42170 Battery for Braun Oral B 3745 3728 3762 7000 3731 P7000 D25 D28 Electric Toothbrush 1.2V 42mm X 17mm|Replacement Batteries| - AliExpress
Braun Oral-B Triumph v2 Battery Replacement Guide
Synergy Digital Toothbrush Battery, Compatible with Oral-B 3762 Toothbrush, (Ni-MH, 1.2V, 2000mAh) Ultra High Capacity, Replacement for Oral-B Battery - Walmart.com
Replacement Battery for Braun Oral B 3745 3728 3762 7000 3731 P7000 D25 D28 Electric Toothbrush 1.2V 42mm x 17mm Batteries|Replacement Batteries| - AliExpress