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Battery isolator diagram how to#
Battery isolator diagram install#

You’ll need a 5/16” lug to connect these wires to the Li-BIM. Wiring the Li-BIM Batt Chassis & Batt Coach Studsįrom these studs, you’ll run a wire to both your house battery bank (Batt Coach) and your Starting Battery (Batt Chassis).

Battery isolator diagram install#

On this wire, you’ll need to install a momentary push-button switch attached with two spade connectors. This needs to be a 18ga or larger wire and will connect to the Sig stud of your Li-BIM with a ¼” ring terminal on one end and to the metal of your vehicle with a ring terminal on the other end. Basically, when you push this switch it gives you the ability to self-jump yourself without relying on another vehicle and a set of jumper cables. The point of this switch is so that you can force-combine your house battery bank and your starting battery in the case of your starting battery getting low. You will want to mount the momentary switch near your steering wheel so you can reach it while trying to start your vehicle. Sig: This stands for ‘Signal’ and is simply a ground wire with a momentary switch wired in line. This can be on the body near the Li-BIM or it can be run all the way back to a negative busbar. Gnd: This stands for ‘Ground’ and simply goes the a ground point on the metal chassis of your vehicle. Once You’ve found the circuit you’re going to use, use an Add-A-Circuit Fuse tap, insert a 5A fuse, and run a 18ga or larger wire from the Add-A-Circuit Fuse tap to a ¼” ring terminal and attach that to the IGN stud on the Li-BIM 225. You’re looking for a circuit that shows 12v power only when the key is on. Next, start pulling fuses, one-by-one in your fuse block and test each circuit with the key off AND the key on. One way to determine where to attach this is to use your multimeter set to DC volts, OR a test light and connect the negative probe to the the metal of your vehicle. Ign: This stands for ‘Ignition’ and needs to tap into a circuit that has 12v power when your vehicle is on. There are 5 studs on the Li-BIM, You’ll need to attach a wire to each of them and here’s where they need to go.

Battery isolator diagram how to#

Li-BIM Lithium Battery Isolator Wiring Diagram How to Wire a Li-BIM Lithium Battery Isolator

Large Gauge Wire Between House & Start Batteries.

Recommended Parts for Wiring an Li-BIM Lithium Battery Isolator

Wiring the Li-BIM Batt Chassis & Batt Coach Studs.

How to Wire a Li-BIM Lithium Battery Isolator.

Li-BIM Lithium Battery Isolator Wiring Diagram.

Recommended Parts for Wiring an Li-BIM Lithium Battery Isolator.

This on/off cycling allows the alternator to cool down for 20 minutes between 15-minute charging bouts. This is great for rapid charging, but this high-amperage draw can potentially overheat an alternator. It does this because lithium batteries can draw a SIGNIFICANT amount of power at one time due to its low internal resistance. It will repeat this cycle as long as you are driving. The standard AGM tuned isolator will see this higher voltage as a ‘charging’ voltage and will not disconnect the starting and house batteries which means the starting battery is at risk for getting low when electronics are used from the house battery bank when the engine is off.Īlso, the Li-BIM is unique because as the alternator is engaged, the Li-BIM will connect for 15 minutes and disconnect for 20 minutes. Lithium batteries like Battle Born batteries have a slightly higher resting voltage than their AGM or Lead Acid counterparts. The Li-BIM is a Battery Isolator specifically designed to work with Lithium house batteries.