1600A016GB Bosch | Bosch 1600A016GB 4Ah 18V Power Tool Battery, For Use With 18 V Range Angle Grinder, 18 V Range Circular Saw, 18 V Range | 177-9574 | RS Components
Teardown: Bosch 18V Core18 4Ah battery. I've never seen anything like this! - YouTube
Replacement 14.4V 18V Bosch Lithium Ion Rechargeable Battery 3ah 4ah 5ah 6ah for Power Tool Drill Set Bat607 Bat611 - China Bat607, Bat611 | Made-in-China.com
Replacement 14.4V 18V Bosch Lithium Ion Rechargeable Battery 3ah 4ah 5ah 6ah for Power Tool Drill Set Bat607 Bat611 - China Bat607, Bat611 | Made-in-China.com