vhbw Battery Compatible with Berner BACR, BACRHD, BACRHD SDS Max, BACRS-1, BACSD-1, BACSG, BACWDVC Power Tool: Amazon.de: DIY & Tools
Powery Battery Charger For Berner Model De9039, 7,2v-18v, 163mm X 180mm X 85mm, 100% Compatible. New - Battery Accessories & Charger Accessories - AliExpress
BERNER Connector for all 18V batteries, Scangrip - Other accessories for cordless tools