26150875JA Dremel | Dremel 26150875JA 1.3Ah 10.8V Power Tool Battery, For Use With Bosch DIY 10.8 V Cordless Power Tools | 175-1126 | RS Components
Bosch Dremel Lite 7760 N/10 4V Li-Ion Cordless Rotary Tool Variable Speed Multi-Purpose Rotary Tool Kit, USB Charging, Easy Accessory
These Dremel and Bosch batteries are functionally identical, but a piece of plastic is reversed on top, preventing them from being interchangeable. : r/assholedesign