How to Charge RV Battery while Driving?

If you own an RV, you need to know its features and understand its mechanisms and how it works. Also, you should know how to charge the battery while driving and take advantage of it. In this article, you will find out about the effective ways you can follow to charge the battery successfully, even while driving.

Road trips and camping using an RV are fun activities for adventure seekers. While driving, you might suddenly stop somewhere because your batteries are dead. If that happens, it would be unfortunate for you if you are new to driving an RV, not knowing how to recharge the battery. So, make sure to follow the proper way of how to charge it to go on your road trip and enjoy the ride.

Also, find out through this article about some other ways you can do to charge the batteries. Charging the batteries is not only connecting it to an electric outlet. If you want to keep your RV battery even for a decade, what should you do?

Read more: Best deep cycle battery for RV

How does the RV battery charge?

You can choose how you can charge the batteries. Through an electric outlet, connect your RV battery, and it will automatically charge. Another way to charge the battery is to allow the motor or generator of your vehicle to run. Keep in mind that charging your RV battery is not only through a converter, generator, or alternator.


You can also charge it directly through solar power or wind power. Plugin the rig to confirm that the batteries are charging. You can check the monitor of the battery to confirm it. And the use of a voltmeter will also help you monitor the voltage.

Note that you can keep your motorhome plugged in for a long time. However, it will drain the water levels of the battery quickly. You can avoid it by checking the batteries often. And if you want your RV battery to have a longer lifespan, make sure to charge it regularly.

While your RV battery is charging, check it often to prevent it from being static. Some of the things you should keep in mind include the following:

  1. Turn off the disconnect switch.Whenever you don’t use the battery of your motorhome, make sure to turn off the disconnect switch. The clocks, stereos, and other parasitic loads lead to your RV battery’s discharge.
  2. Prevent battery sulfation.You can notice this battery condition when you don’t immediately charge it whenever it reaches 80% and when it goes below 10.5V. If you want to save the battery from sulfation, make sure to charge it quickly once it reaches the limit.
  3. Overcharging will damage the batteries.Batteries need replacement when it is damaged. Overcharging is among the main reasons. So, regular monitoring of the batteries is necessary to avoid overcharging them.
  4. Keep the batteries away from hot temperatures.Aside from overcharging the batteries, the hot temperature is also among the main reasons why your RV battery no longer works. You can check its electrolyte levels and add water if necessary.
Note: Your appliances and devices can function because of the batteries. And you can extend your RV’s battery life through proper charging and regular maintenance.

Does RV battery charge while driving?

Every battery has a limit. Since your appliances use electric power, it will soon drain the battery. It may be durable, but proper maintenance is necessary if you want to use it for more than a decade. When you notice that the battery starts to drain, how will you charge it?

You can successfully charge the battery even while driving, but make sure to carry the necessary items. It includes Voltage Controlled Relay (VCR), plugs, and cables. The cables should be of high quality and with high amperage capacity.


Check the following steps or methods that you should do to charge your RV battery while driving. Note that the charging can only be successful if you follow the steps carefully.

  • obtain-a-voltage-controlled-relay
    Obtain a Voltage Controlled Relay (VCR).
    The device works like an automatic switch. Make sure to organize its connections. When the RV’s engine is on, the relay automatically opens. But the batteries will lose connection when the engine is off. Since the batteries are disconnected, the voltage automatically resets the voltage and saves energy.
  • plugs-cables-connect-battery
    Use the plugs and cables to connect the battery.
    High-quality plugs and cables ensure that the charging process will run smoothly without any problem. Also, you have to build a secure connection between the batteries. If the connection is unstable, your RV battery will drain quickly.
Note: When you charge the battery while driving, make sure to eliminate or prevent fire hazards. You can do that by attaching a circuit breaker and through the use of rubber boots slip. Avoid overcharging the battery as you drive your RV.

How Long will RV battery last?

When do you usually use the batteries? Some use it only when they go on a trip, while others use them often. Whether you use the batteries only once a week or every day, you should know how long it can last.

If you can extend your RV’s battery life, it is for your advantage. So, check the batteries to know if you need to charge it immediately or not.

The batteries are indispensable to run the appliances and other devices in your motorhome. So, if you maintain your batteries, you can use it for up to 6 years or more. RV batteries have different types, and you can decide what to use for your vehicle.

Does your motorhome use deep cycle batteries or Lithium-Ion batteries? Whatever type of batteries you choose for your RV, keep in mind that maintaining them is necessary. It can last for at least 10 years as long as you care for it.

Note: When you notice that the battery has reached 45%, recharge it quickly. You can avoid replacing the battery soon if you follow this tip.

1 Comment

  • lig tv says:

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