Why Is My RV’s Converter Not Charging The Battery?

How would camping feel like without travel trailers? Of course, the entire experience would sound unbearable. They help bring the home experience out there in the wild or while cruising along those dusty roads.

For an RV to make all this happen, it requires power, and that comes from the battery or electric source. Therefore, the state of your RV battery is crucial, unless you don’t mind spending your life in the dark while out there. The battery needs a converter to help with the charging.

What if you find out that the converter isn’t charging the battery? Cases of converters not charging the battery are common. They can be as a result of many factors, which include:

1. Lose connection
2. Dead Battery
3. Faulty converter

What Is a Battery Converter By the Way?

Within time, your RV battery is likely to run empty. What happens when it’s empty? Some charging will be required, and that’s where a converter comes in the picture. As its name suggests, a converter is an electrical device that turns the 110 volt AC from the electrical supply to 12 volt DC power that the battery requires. Without the device, therefore, it means that your battery will run empty.

Where Should You Check if You Realize that Your Converter Isn’t Charging?

1. Lose/Poor Connections

The connection is everything when it comes to topping up your RV’s Battery. On one occasion or another, your battery may fail to charge because of loose wiring. Say, for instance, the converter’s cables may be broken.

Therefore, whenever you encounter a problem with the converter not charging, you should start by checking that the cables are ok. You can test to see if the cables are passing the electricity from the power supply.

If you notice a problem with the cables, it’s recommended that you replace them instantly. Also, misconnecting the wires can see the converter fail to top up your battery.

Therefore, whenever you are faced with this problem, check to confirm if the terminals are connected correctly. You must know that such an error can lead to significant damages on your battery, if not corrected.

2. Dead Battery

Everything has the beginning and the end. Your RV’s Battery, for instance, has a lifespan. The life of your battery is dependent on many factors, among them model and design. Also, the life of your battery may be affected by how well you take care of the cell.

Therefore, if you take good care of the battery, it’s likely to serve you as per the description. But, in the end, the battery will reach its climax and hence the need for a replacement.

Hence, your battery not charging may be a sign that your battery has already reached its climax. It should act as an indication that you need to start shopping for a replacement.

But, before you conclude that the battery is dead, you will need to confirm. You can begin by testing the state of the cell. Maybe, the battery is empty. In such a state, bringing it to life using a converter can be challenging and even take time.

Also, you can inspect the battery for leakages. Often, the RV batteries tend to be neglected based on the fact that the vehicles or trailers are used seasonally.

As a result, the battery may develop cracks or even broken terminals. You should check for such signs as they can tell you if it’s time to call in for another cell. If you find out that it’s the battery that has a problem, don’t hesitate to ask for a new one.

3. Faulty Converter

On many occasions, it’s usually the converter that has a problem when it comes to charging. With a defective converter, it means that the battery won’t receive any power. When it comes to working around the converter, there is a step-by-step guide on how to pinpoint the problem. It’s as follows:

i. Check the fan. When charging the battery, the converter is prone to getting hot. It’s at this point that the fan comes in handy. A fan is the part of the converter that helps prevent the component from overheating. The fan is customized to turn on and off based on the device’s internal temperature.

If the fan doesn’t operate well, it means that you’re going to have a problem with your converter. You are likely to experience cases of overheating, and that can see charging affected as the converter will stop functioning.

You must, therefore, check the fan to ensure that it’s in its best state. In some instances, the problem isn’t with the fan, but the temperature sensors. You can go ahead and test the sensors to see if they are at fault.

ii. Test the circuit breakers. Another way to test your converter is by examining the circuit breakers within the RV. You will need to keep the main breaker on and switch off the mini breakers to perform the test.

If the living room area was the one affected, you can open and close the breaker. If you realize that the lights don’t return, then you can tell immediately that the problem isn’t the breaker, but the converter or fuses.

iii. Inspect the fuses. Fuses are tiny electrical components found in between the electrical wiring. Fuses are designed to break whenever there is an electrical short or surge. They are meant to prevent your appliance from damaging or burning.

You can, therefore, start by inspecting every fuse within the RV. A burned fuse can be the one hindering your electrical system from functioning. If you notice a broken fuse, don’t hesitate to replace it right away.

iv. Test the diodes. Diodes are electrical components that ensure current is flowing in one direction. The diodes prevent the current from damaging your batteries or your generator. Your converter may be failing to perform because of a faulty diode.

Unfortunately, they are difficult to test even with the help of a pro. Therefore, if you realize that the diodes are the issue, the best solution is to replace the converter.


Keeping your RV’s Battery charged is important because the battery is needed to perform various duties within the vehicle. However, in some instances, the battery may go empty, leaving you in darkness.

Listed in this article are some of the reasons as to why the converter may fail to charge up your battery. Read through the entire piece to understand which problem may be affecting your RV. With the info, you will know what to do if you encounter the issue.

1. How to Tell If Your RV Converter Is Bad – Camper Smarts
2. How To Test An RV Converter In 6 Quick Steps – Crush the Road