It will then power off and restart with the correct charging parameters. Now you can either press the two buttons again or let the unit sit for 30 seconds to restart it. Press and hold the two buttons for two seconds for the third and final time. Press and hold the two buttons for two seconds. Now the “Conditioning” and “Float” LED will illuminate. Two LEDs at the top of the unit should now be flashing, the “Bulk/Boost” and “Float” LEDs. Press and hold the two buttons again for 2 seconds to select this setting. Use the two buttons to move the LEDs so that they are illuminating 13.4 V and 13.8 V. As before, use the two buttons to move the LEDs so that they are illuminating 13.4 V and 13.8 V. The “Conditioning” LED will now be flashing. Press and hold the two buttons again for 2 seconds to select this setting.Ī LED at the top of the unit will be blinking over “Bulk/Boost.” Use the two buttons to move the LEDs so that both the 14.2 V and 14.6 V are illuminated. Then use the left or right button to move the LED up to the “Custom” position. Once the charger is fully powered on press both of the buttons, “SETUP” and “SELECT”, for 10-12 seconds (10-12 flashes). Run a negative cable from the negative terminal of the starting battery to the “NEG-” terminal of the battery charger.īring a cable from the positive terminal of your house battery and connect it to the “OUT +” of the battery charger.ĭouble check that you have made all of the correct connections and then start the vehicle and the unit will power on. Run a positive cable from the positive terminal of the starter battery to the “IN+” terminal of the battery charger. We used a 6 AWG cable throughout our installation. Take unit out of box and remove lower front red face plate to expose the input terminals.Ĭonnect the negative terminal of the house batteries to the negative terminal of the starter battery with a 6 or 8 AWG cable. Here is a step by step guide on setting this unit up with Battle Born Batteries!īefore starting this installation, make sure that your vehicle is powered off. Sterling accomplished this by creating a charger that takes power from the starter battery, regulates the voltage and current, then sends it to the battery bank. The battery to battery charger made by Sterling Power solves a huge issue that many of us have: charging your battery bank off of your cars alternator.