Bosch Battery Starter Set: 2 x ProCORE18V 4Ah + GAL 18V-40 (carton) 18V Starter Set Battery starter set: 2 x GBA 4Ah ProCORE18V battery + GAL 18V-40 Charger - 1600A01BA4
Bosch 18-V 8 Amp-Hour; Lithium-ion Battery in the Power Tool Batteries & Chargers department at Lowes.com
Runtime Testing The Bosch CORE18V 4.0 Ah VS Fatpack 4.0 Ah VS CORE18V 6.3 Ah - YouTube
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
Bosch ProCORE Battery Range | Bosch Professional | Pro Core Battery | Power Tool Batteries | DIY - YouTube