Reply To: Engine and service battery linking

[victor crowhurst]

I carry a long pair of jump-leads on-board my 37, so I could bridge from any of my domestic batteries. I’ve burnt out three of those relays by letting the domestic batteries get low. In this situation, on starting up, very large currents flow across that relay, 30-70A which despite its spec, it can’t handle and the plastic base melts and the contacts separate. I now constantly keep the MasterVolt trickle charger on.