Everything in an RV, including the lights and the appliances, is operational only through a charged RV battery. You may have to charge the battery a few times if you take your RV out on a regular basis. If you know how to charge your RV battery, you can be sure you'll have the power to enjoy all the perks of your recreational vehicle.
Steps
Google images Step 1 Turn off your RV and make sure you set the emergency brake.Turn off your RV and make sure you set the emergency brake. This will prevent unintentional injury.
Google images Step 2 Locate the RV battery.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.
Google images Step 3 Remove the battery cables from the battery using a wrench.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).
Google images Step 4 Clean the connections on the battery from any corrosive substance.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.Google images Step 4 Clean the connections on the battery from any corrosive substance.
Apply the paste to the connections on the battery.Google images Step 4 Clean the connections on the battery from any corrosive substance.
Use a wire brush to scrub off the corrosive material.Google images Step 4 Clean the connections on the battery from any corrosive substance.
Wipe the paste off with clean water and a rag.Google images Step 4 Clean the connections on the battery from any corrosive substance.
Apply petroleum jelly to the terminals to prevent further corrosion.Google images Step 4 Clean the connections on the battery from any corrosive substance.
Google images Step 5 Open the fill cap on the top of the battery to see whether the distilled water level is low.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.
Google images Step 6 Attach the RV battery charger to the battery.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.
Google images Step 7 Plug in the charger and turn it on.Plug in the charger and turn it on.
Google images Step 8 Allow the charger to charge the RV battery completely.Allow the charger to charge the RV battery completely. The indicator light will come on when the charger finishes.
Google images Step 9 Unplug the charger and remove the connections.Unplug the charger and remove the connections.
Google images Step 10 Reconnect the battery.Reconnect the battery. First, replace the positive cable and tighten it with the wrench. Then reattach and tighten the negative side.
Google images Step 11 Charge the other batteries in the same way if your RV has more than one battery.Charge the other batteries in the same way if your RV has more than one battery.
Google images Step 12 Take extra precaution not to cross group house & chassis battery systems as you could blow a charger inverter.Take extra precaution not to cross group house & chassis battery systems as you could blow a charger inverter.Example.jpg]]
Video
Warnings
Be careful not to get any of the battery acid on your skin. It will burn. If you do get acid on your skin, wash it off with a mixture of water and baking soda. Thanks Helpful 4 Not Helpful 3
Do not allow the baking soda to leak into the vent holes in the battery, or it will lessen the life of the battery. Thanks Helpful 4 Not Helpful 6
Do not attempt to charge the RV battery with the RV running. Thanks Helpful 3 Not Helpful 5
Do not remove the battery cables without wearing heavy gloves, or you could get a shock. Thanks Helpful 3 Not Helpful 5
You must remove the positive cable first. Removing it last could cause a spark. Thanks Helpful 1 Not Helpful 21
Only use distilled water in the battery. If you use tap water, it could cause contaminants to enter the battery, negatively affecting the performance of the battery. Thanks Helpful 0 Not Helpful 0
Things You'll Need
Wrench
Heavy gloves
2 - 3 tablespoons (30 - 45 milliliters) baking soda