Can you explain in detail what/ how the soleinod is engaged?
I know what that is because thats style switch is what most lowrider guys use as solenoids on their hydraulic pumps. But even Hydraulics are momentary similar to a starter, albiet higher voltage (24-72v).
Like I said... it could be absolutely 100% fine.
I happened upon a Orion battery isolator on ebay. Excerpt from the manual: Orion's mbr 70 takes a totally new approach to ensure proper voltage levels in multiple battery systems. the mbr 70 is a smart regulator/isolator that senses the needs of the vehicles battery and any additional batteries. unlike conventional battery isolators, the mbr70 requires no cutting into the factory electrical system. it allows all the batteries in your vehicle to become a collective voltage source.
the mbr 70 ensures the proper voltage level in the vehicles battery by concentrating solely on that battery until it sees a charge voltage about 12.5 volts. Once this voltage level has been establishes the mbr70 couples all the batteries so they can all be charged.
when your engine is running, the mbr70 allows the alternator to feed all the batteries a regulated charge up to 70 amps.
when the ignition is turned off, the mbr70 becomes a one-way gate, isolating the current in the vehicle's battery from passing through to the auxiliary batteries. this one way gate ensures that the vehicles battery will always have enough charge to start the car, regardless of the charge level in the auxiliary batteries.
the mbr 70 is also in magnificent shape
-isolates batteries when ignition is off
-mounts in front or rear of vehicle
-senses charge voltage of auxiliary batteries
-brings charge voltage up on vehicles battery, then begins charging the -auxiliary batteries
-enables the stereo system to draw off all the batteries when engine is running
-can be installed without cutting into factory harness
-has led's to inform of, power and charge status
Sorry for the thread jack, Just letting you know about other options.
Now that i've looked on ebay for a battery isolator, there are brand name (Stinger) units that have the same construction. So I assume its fine.
ebay battery isolator link thing