Using Redarc In-Vehicle BCDC Battery Charger to Charge Lithium Ion Battery

Updated 04/26/2018 | Published 04/25/2018

Question:

Where is the wire, suppling the +12V to the one o clock position on my Duramax 2500 7 way connection, feed from? I need 14.6v to fully recharge my RV Lithium Ion battery. How does a Redarc BCDC battery charger amplify 12.5V DC to 14.6V DC?

asked by: Russ S

Expert Reply:

The wire that is going to the 12V pin on your Silverado's 7-Way connector is connected to the truck's battery. You should be getting 12 volts of power at the this pin (1 o'clock position) on the connector.

The Redarc In-Vehicle BCDC Battery Charger # 331-BCDC1240D referenced in your question is a great option for charging your Lithium ion battery. When hooked up to the truck's battery or alternator, it will do a nice job of maintaining the battery's charge, but to actually charge it from a more depleted state, you will likely need to add a solar panel to the unit. When connected to a solar panel, the charger will automatically draw power from the panels first before tapping into the vehicle battery.

The Redarc Charger features an output voltage of 12V DC.

expert reply by: Chris R