Battery isolator

Joe417 wrote:
I've been using a 100 Amp continuous duty solenoid for about 5 years. Works great still about $20 on ebay.

X2
$14 on Amazon

I've been using a 100 Amp continuous duty solenoid for about 5 years. Works great still about $20 on ebay.

The insulators have several disadvantages.
-they cut about 0.5v on the other side
-they have low efficiency
-they are prone to leaking the current to ground.
Get yourself modern combiner, what is electronic circuit with HD relay, that works both ways, meaning keeping your vehicle battery topped of when you plug your RV into shore plug.

I used a Tekonsha 7000-S battery switch and a 30A reset to isolate the dual truck batteries from the camper. A similar set-up perhaps can be done for a strictly dual battery situation.
Some more info in the install HERE.