I know this will seem pretty basic to a lot for you people. But I can not find the answer in terms I can understand.
How do I figure out how long I can run said electronic on my dual battery set up?
Also, let me run this by you guys. Run a live wire from the vehicle battery to a cut off switch. When the vehicle is on turn the switch on so the 2nd battery charges. Turn switch off when vehicle is off? Is this too simple to work? Am I missing some very fundamental electrical engineering?
Thanks
How do I figure out how long I can run said electronic on my dual battery set up?
Also, let me run this by you guys. Run a live wire from the vehicle battery to a cut off switch. When the vehicle is on turn the switch on so the 2nd battery charges. Turn switch off when vehicle is off? Is this too simple to work? Am I missing some very fundamental electrical engineering?
Thanks