BOSCH Upgrade Battery / Change Old Dead Li Ion Cell / GSR BAT411 - YouTube
Bosch PRO 12v 2.0Ah & 4.0Ah Li-Ion Battery Kit with GAL 12V-40 Charger 1600A01ND0 | Powertool World
10.8V 12V Li ion Rechargeable Battery And Charger Replaceable for BOSCH cordless Electric drill screwdriver BAT411 BAT412 BAT413|Replacement Batteries| - AliExpress
2X 12V Max For Bosch Li-Ion Battery 10.8V 4AH GBA12V60 BAT420 BAT414 BAT412 GSR | eBay