BOSCH BAT612 18V Lithium-Ion 2 Ah Standard Power Battery - Cordless Tool Battery Packs - Amazon.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