I have several items (freezer, laptop, electric blanket etc.) that I like to keep on when the engine is not running. I have a good ole manual rocker switch on them right now. I'd like to be able to run some of the equipment for up to 8 hours but don't want to forget one day and leave them on draining my 2nd battery. Although it's a yellow top I'd still rather not prematurely shorten it's life by draining it dead. I can build a Time Delay relay with a simple Capacitor, Relay circuit or something simple like this solid state circuit
But I'd rather just buy something already done. Time is precious and I've still got my CO2 setup to mount, tire carrier to build, etc. Yah know how the list never get's shorter just more expensive
Anyone know of a 12v Time delay relay circuit already made that will work 8 hours then cut the power off? If it handles 5amps that's probably fine but I'd rather it be able to handle 10amps.
Or maybe a totally different suggestion to prevent the battery from being drained dead?