Bongo Fury

Good evening,
Having bit of a head scratch? Have cool box plugged in and has worked with the switch on Zig unit switched to car (volt meter did its thing) whilst driving to destination but now nothing. Have checked the three fuses of the switches. What next?

Your thoughts much appreciated.

You should have a VSR in the circuit and a fuse in line from you vehicle bat' 'bout 25 or 30a check at your VSR maybe under the dash (as mine) or under the bonnet, like a combi master from W4

Sparky

BTW the Zig is'nt anything clever it's just a fused switched supply with three outputs and a selection switch for either vehicle bat or leisure bat