YC 1 wrote:
That will work just fine. If you want some fun, install a 12 volt tail light bulb or dome light inline and if the engine battery is low the bulb will glow until the two batteries come to the same level. It acts as a current limiting device although not needed and just a fun thing for me to do on my last RV until I installed the Trik-l-start.
I have that hooked up now and the bulb is getting dimmer as time goes by. If this worked for you, why buy the Trik-l-start? All you'd need is a switch on this to stop any discharge when boondocking.