Jebiruph
Well-Known Member
- Thread starter
- #1
I've always thought it would be good to be able to isolate the aux battery and keep it as a reserve battery, especially when overlanding. Here's what I've come up with to implement that, and for managing the batteries in general. It uses a battery switch connected to the aux battery ground cable, a bypass jumper and a voltage gauge for each battery.
It's still somewhat of a prototype, I still have to figure out some way to mount the volt gauges.
To hook it up, you remove the aux battery ground cable from the main battery ground terminal and connect it to the battery switch stud and connect the battery switch cable back to the main battery ground terminal.
The red cables connect to N1 and the main battery positive terminal. You should remove the fuse when connecting the red cables to avoid accidentally shorting them out. Here's a diagram.
Here's running with the batteries separated, the volt meters show the main battery charging and the aux battery not.
Battery charger charging just the main battery.
Battery charging just the aux battery. EDIT- You should be able to leave the positive cable on the main battery and just move the negative cable to the aux battery.
Here's with the main battery disconnected after a successful test of starting with just the aux battery. EDIT- It's not necessary to unplug the battery sensor.
It's still somewhat of a prototype, I still have to figure out some way to mount the volt gauges.
To hook it up, you remove the aux battery ground cable from the main battery ground terminal and connect it to the battery switch stud and connect the battery switch cable back to the main battery ground terminal.
The red cables connect to N1 and the main battery positive terminal. You should remove the fuse when connecting the red cables to avoid accidentally shorting them out. Here's a diagram.
Here's running with the batteries separated, the volt meters show the main battery charging and the aux battery not.
Battery charger charging just the main battery.
Battery charging just the aux battery. EDIT- You should be able to leave the positive cable on the main battery and just move the negative cable to the aux battery.
Here's with the main battery disconnected after a successful test of starting with just the aux battery. EDIT- It's not necessary to unplug the battery sensor.
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