For effective dual battery management in mid-sized cars, the DBC100K is the perfect 12V 100A electronic isolator kit that ensures supplementary power without depleting the primary battery. Provides a dependable 75A continuous and 100A peak charging current to the auxiliary battery Protects against over-discharge and automatically maintains the ideal charge with a 13.4V cut-in and 12.8V cut-out voltage Has an EMC certification, integrated surge protection, and a low standby current draw for energy economy A fully automatic dual battery kit suitable for any mid-sized vehicle with an auxiliary battery. Kit comprises: Electronic isolator (100A: P/No. DBC100), lugs, terminals, heat shrink & cable ties, 4m main cable & 60cm aux earth cable (6 B&S) bracket, auxiliary battery terminals (2 x pos, 1 x neg)