Bosch PSR 1800 Li-2 Cordless Drill (2 Batteries, 18 V, 241-Piece Accessory Set, in System Box) : Amazon.de: DIY & Tools
Bosch Home and Garden 06039A3308 Bosch PSB 1800 LI-2 Cordless Impact Screwdriver (2 Batteries, 18 Volt System, in Case), Black : Amazon.de: DIY & Tools
2 - Bosch PSR 1800 18V Cordless Drill Driver With 2 Batteries And Charger - YouTube
Bosch Battery - What are those extra 4 contacts for? : r/Tools