I finally "finished the dual battery install. Unlike
my past dual battery installs, I didn't use giant fuses on the positive battery terminals. The cable runs are very short and well protected. Less connections and crimps mean less potential problems. The keys to battery installs are plenty of loom, adhesive marine heat shrink wrap, and solid crimps. Sorry for the crummy cell phone pics
The factory relays were moved to an unused M6x1.0 post near the fender. I mounted the Dual battery solenoid in it's place. I plan to fab a small aluminum bracket to lower the solenoid and give it a more secure mounting location.
The OEM battery was replaced with a smaller Die Hard Gold AGM 34R. The aux battery is a Die Hard Deep Cycle Marine AGM 34. All added wiring is 1/0 gauge with marine grade tinned copper lugs and marine grade adhesive heat shrink wrap, all protected with heat resistant braided loom.
I bought
Quadratech's Extreme Duty battery terminal kit for the primary battery and
Military battery terminals for the Aux, but didn't end up needing either. I'll save the Quadratech kit for when I wire up a winch. Use a socket and a rubber mallet to firmly seat the OEM terminals on the new battery. For the aux battery, I used the terminals that came with the T-maxx kit.
The
T-Maxx Battery Controller comes with a cheap 3M style fuse holder. These always seem to fail in automotive uses. So I crimped a more heavy duty fuse holder into the green cable (now red at the solenoid end).
To solve the battery movement issue. I stuck a piece of 3/4" thick painted, wooden trim along the base of the tray. A heavy duty battery strap was added to each battery.
See white piece of wood.
The MORE Dual Battery Tray instructions say to grind these firewall bolts down. That wasn't necessary for me. I added 2x M6x1.0 nuts with a lock washer in between, and 1x nut with a lock washer to the lower two studs, then capped them with the provided rubber caps. The batteries fit fine and I didn't have to irreversibly alter the Jeep.
The battery controller wires run through the foam plugged hole in the wire wall and into the glove box. Bonus points for anyone on here young enough to recognize those songs on the sat nav.
I ran ARB's fridge wiring kit from the Aux battery through the firewall. It uses 8g wiring, which should be plenty to wire up my interior fuse box under the passenger seat. Right now, it has an inline fuse, but I'll eventually add a Blue Sea 30A or 50A circuit breaker so I can easily disable the always on power.
*I'll have to get some better landscape shots later.
We're taking "Bruce" up to the lower Sierras tomorrow. So I wanted to get the fridge working reliably.