very low draw. you have to shut it off with the key only when not using the sled or it will drain the battery dead. i would shut the key off when eating lunch etc. but not if i stopped for 5-10 minutes.Is there much of a draw on the battery with just the kill switch or do you need to turn key off every time you stop for 5 to 10 min?
the kit is probably cheaper than buying individual parts? all you need is the battery box and hardware. and the e-start wiring harness. without the battery cables. but you will have to make smaller gauge wire positive and ground to go from the battery to the harness. that way it provides 12vdc when the key is in the on position and the system recharges the battery when the sled is running. very simple to do really?