JK Stage 3 Dual Battery Sytem

Stage 3 - Best

This premium package includes everything to install and operate dual batteries including isolate them. The Stage 3 includes an upgraded electronics package to featuring our own standalone battery management module. This module is standalone and does not require any wiring to the OEM harness. It has sophisticated internal circuitry that constantly monitors voltage on both batteries and makes auto-switching decision based on voltage levels. Anytime the voltage is above 13.2V, the batteries are combined. When voltage drops below 12.7V, the batteries are isolated. Once the Main battery has been recharged to >13.2V, the batteries are re-combined so that the Aux battery can be recharged.

Advantages of this system are that it is entirely standalone and requires no attachment to the vehicles OEM wiring harness. It also prioritizes charging to the Main battery first, and never charges more than 1 battery at a time, lightening alternator load.

The module includes on-board LED status indicator, as well as provisions for an in-cab LED and manual override features.

The Benchmark Designs JK Stage 3 Dual Battery System is the most superior kit available and is also the easiest to install.