100% Original 18V 6.0Ah Rechargeable Lithium Ion Battery for Bosch 18V 6Ah Backup Battery Portable Replacement BAT609 - AliExpress
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