How to Charge Your RV Battery

Turn off your RV and make sure you set the emergency brake. This will prevent unintentional injury.

Locate the RV battery. You could have more than one battery, depending on the size of your RV. The battery location can vary from one RV model to the next.

Remove the battery cables from the battery using a wrench. Wear heavy gloves when removing the cables and always remove the black cable (the negative side) first before removing the red cable (positive side).

Clean the connections on the battery from any corrosive substance. Mix 2 to 3 tablespoons (30 to 45 milliliters) baking soda with enough water to make a paste.1170900 4B1.jpg Apply the paste to the connections on the battery.1170900 4B2.jpg Use a wire brush to scrub off the corrosive material.1170900 4B3.jpg Wipe the paste off with clean water and a rag.1170900 4B4.jpg Apply petroleum jelly to the terminals to prevent further corrosion.1170900 4B5.jpg

Open the fill cap on the top of the battery to see whether the distilled water level is low. If it is low, pour distilled water into the battery using a funnel. Fill up to the fill line.

Attach the RV battery charger to the battery. Connect the positive side to the red connection first and then attach the negative side of the battery with the black connection or clamp the black connection to a metal piece to ground it.

Plug in the charger and turn it on.

Allow the charger to charge the RV battery completely. The indicator light will come on when the charger finishes.

Unplug the charger and remove the connections.

Reconnect the battery. First, replace the positive cable and tighten it with the wrench. Then reattach and tighten the negative side.

Charge the other batteries in the same way if your RV has more than one battery.

Take extra precaution not to cross group house & chassis battery systems as you could blow a charger inverter.Example.jpg]]