Battery Isolator

[Killer Bee]

late to the game but I'll throw in my two pfennigs

I manage a 9,400 unit utility company fleet, we have battery isolators in just about everything larger than a sedan

We replace solid state battery isolators probably 100:1 over solenoid types

I remember as a supervisor some lasting barely 1-2 years in a few trucks, along with a set of batteries usually

in fact, in many cases we replace the solid state with a solenoid when feasible because they're more reliable and last longer

sure power (like the stinger mentioned above) are the most popular solenoids with our techs

like I said, we replace the 140a and 200a diode cole hersees (installed by the body upfitters) by the dozens

now that's full time high use fleet experience, low personal use or recreational use may work differently

but as mr48chev mentioned above, my motorhome has a sure power in it

ymmv and good luck with your project!