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Dual battery setups for a 1500 for 12v accessories?

boogielander

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Are you planning on replacing your starter battery with an Antigravity LiFePO4 battery? I assume this because you mention a built in jump start button.

I’ve considered something like this, but I’m not sure how I’d tie a solar charger controller into the system.
yes that's exactly what I'll be doing once my friend comes back from overseas to take my 4runner battery in to trade up.

when i ran the system in my 4runner it's just solar controller goes to the positive side of blue sea fuse block I installed and body ground.

so imagine this:
this is without solar controller (for simplicity)
starter battery->blue sea fuse block -> accessories

this is with solar controller (for simplicity)
starter battery <->blue sea breaker bar <->blue sea fuse block <-> accessory and solar controller
it basically turns into a two way street for positive currents to flow.

this is the one i use: Wanderer Li 30A PWM Charge Controller
Here's a quick video I made for someone else for a quick explanation of how i did it:
 

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