Bosch GBA ProCORE 18V 4.0 Ah Professional Battery -1600A016GB 1600A016GB | Cromwell Tools
Bosch 18-Volt 2-Pack 4 Amp-Hour; 4 Amp-Hour Lithium Power Tool Battery Kit (Charger Included) in the Power Tool Batteries & Chargers department at Lowes.com
Bosch Blue 18V 4.0Ah ProCORE18V Lithium Ion Battery - Bunnings Australia