i think its stinger 0ga. i dont remember. the pos 0 keeps falling out but the neg side stays in. i think its how its all mounted but im still not a big fan of the blocks and want to get something clean. would be nice if i could find some digital blocks for 1 in and 3 4/8ga out
If your boat has a helm mounted analog volt gauge, you can easily use it along with a DPDT rocker switch to display the voltage of both the house and main battery banks.