SolarBox offers a range of quality fuses, fuses holders and circuit breakers. One of the most common failures with dual battery installations is a failure of the fuse/holder. Poor quality fuse holders often don’t make adequate contact with the fuse which causes excess heat to be generated due to the high resistance. This excess heat can be enough to melt the fuse and the holder. You could be losing valuable charge due to heat dissipation, and this could cause no charge to your auxiliary battery. Check out our range of Midi, ANL & Mega fuses below as well as the Noark & CBI Electric circuit breakers for reliable circuit protection.