#48525 SMART BATTERY ISOLATOR 85A MANUAL#

Powerstream is the same thing but with 13.6v/12.6v instead of 13.2v/12.7v like yours has:Īs for the dual solar - MPPT is expensive. The unit you have is a split-charge relay - with a little black box added on to sense voltage and energize the solenoid. That is what I personally use in my truck. What I just described is a normal, regular ol' 'split-charge relay' that's been used in boats and trucks and RVs since around the time Alexander the Great lived in Jericho. Once the engine is running, they both charge. The, when you turn the key on, they are tied and you start the truck. So you take a standard solenoid - like the one that is on your isolator now - and wire it so it ties the batteries when the key is on 'run' (not when the key is on accessory). When I remove this screw the solenoid isolator shuts itself off, thus solving the problem of my chassis battery depleting, but disallowing my aux battery from charging.ĭoes anyone have a clue as to why the solenoid isolator isn't disconnecting the batteries?Ī solenoid isolator would be exactly what you have, but without the little black box to switch the solenoid on and off. The ground wire on the solenoid isolator is connected to a screw drilled into the rib on my van. I disconnected this cable for a few minutes and the solenoid isolator did not shut itself off anyway.

#48525 SMART BATTERY ISOLATOR 85A MANUAL#

The right side terminal on the isolator is connected to the positive top post stud on my aux battery, and the left side terminal on the isolator is attached to the positive jump post on my chassis battery, with 1 gauge cables.įrom the negative top post stud on my aux battery to the negative jump post on my chassis battery I have a 1 gauge cable run.The manual does not say to connect the aux and chassis batteries together directly with a ground cable, but for jump starting purposes this cable is needed. I am using a yellow top Optima battery for my chassis battery, and a blue top Optima battery for my auxiliary battery. This is the solenoid isolator I have, model 48525, 85A.

The status light on the solenoid isolator is on indicating the solenoid is connected and both batteries are connected together thus they are trying to equalize with each other. And I am certain it's the solenoid isolator, but I can't figure out why.

48525 smart battery isolator 85a