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Why Is My RV Battery Draining While Plugged In?
I was excited to take my RV out for a weekend getaway. I plugged it into the campground’s electrical outlet, but the next morning, my battery was dead. I couldn’t figure out why. I had done everything, right?
The next day, I was talking to another camper who had been having the same problem. He told me that my RV battery might be draining because of a parasitic draw.
What Is a Parasitic Draw?
A parasitic draw is a small amount of electricity that is drawn from your RV battery even when everything is turned off. This can be caused by a variety of things, including:
- Bad wiring
- Malfunctioning appliances
- Clocks
- Radios
- Inverters
Even a small parasitic draw can drain your battery over time. If you’re not careful, you could end up with a dead battery and a ruined RV trip.
How to Find a Parasitic Draw
If you think your RV battery might be draining because of a parasitic draw, there are a few things you can do to find it.
- Turn off everything in your RV. This includes all appliances, lights, and clocks.
- Disconnect your RV from the electrical outlet.
- Wait 30 minutes.
- Connect a multimeter to your RV battery.
- Set the multimeter to DC volts.
- Touch the positive probe to the positive terminal of your battery.
- Touch the negative probe to the negative terminal of your battery.
If your multimeter reads anything other than 0 volts, you have a parasitic draw. The higher the voltage reading, the greater the parasitic draw.
How to Fix a Parasitic Draw
Once you’ve found a parasitic draw, you need to fix it. The best way to do this is to start by unplugging each appliance one at a time. If the parasitic draw goes away when you unplug an appliance, that appliance is the culprit.
Once you’ve found the appliance that’s causing the parasitic draw, you can either fix it or replace it. If you’re not sure how to fix the appliance, you can take it to an RV repair shop.
Tips for Preventing a Parasitic Draw
Here are a few tips for preventing a parasitic draw in your RV:
- Turn off everything in your RV when you’re not using it.
- Disconnect your RV from the electrical outlet when you’re not using it.
- Have your RV battery checked regularly by an RV repair shop.
- Install a battery disconnect switch. This will allow you to disconnect your RV battery from the rest of the electrical system when you’re not using it.
By following these tips, you can help prevent a parasitic draw in your RV and keep your battery charged.
FAQ on RV Battery Draining While Plugged In
Q: Why is my RV battery draining while plugged in?
A: A parasitic draw is a small amount of electricity that is drawn from your RV battery even when everything is turned off. This can be caused by a variety of things, including bad wiring, malfunctioning appliances, clocks, radios, and inverters.
Q: How can I find a parasitic draw?
A: To find a parasitic draw, you can turn off everything in your RV, disconnect it from the electrical outlet, wait 30 minutes, and then connect a multimeter to your RV battery. If the multimeter reads anything other than 0 volts, you have a parasitic draw.
Q: How can I fix a parasitic draw?
A: To fix a parasitic draw, you can start by unplugging each appliance one at a time. If the parasitic draw goes away when you unplug an appliance, that appliance is the culprit. Once you’ve found the appliance that’s causing the parasitic draw, you can either fix it or replace it.
Q: How can I prevent a parasitic draw?
A: To prevent a parasitic draw, you can turn off everything in your RV when you’re not using it, disconnect your RV from the electrical outlet when you’re not using it, have your RV battery checked regularly by an RV repair shop, and install a battery disconnect switch.
Conclusion
If you’re having problems with your RV battery draining while plugged in, it’s important to find and fix the parasitic draw. By following the tips and advice in this article, you can help prevent a parasitic draw and keep your RV battery charged.
Are you interested in learning more about RV batteries? If so, please leave a comment below and I’ll be happy to answer your questions.
Image: camperlife.co
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