From Amazon
Bosch Home and Garden F016800432 Indego Connector (4 Pack), Transparent
Powertool World
Bosch Green Wire Connectors x4 Pcs for Indego Robotic Lawnmower F016800432
Conrad Electronic
Bosch Home and Garden F016800432 Cable connector 4-piece set Suitable for (lgrass trimmer): Bosch Indego, Bosch Indego 1000 Connect