FTC Disclosure: I get commissions for purchases made through some of the links in this article for more information, visit our Advertising Disclosure Page.

LEARN HOW TO RUN 2 RV A/Cs ON A 30 AMP CONNECTION

Subscribe to the free Everything About RVing Gazette Newsletter


Charging RV Batteries 

Is your RV battery fully charged? Learn how to check

Good Sam members enjoy instant discounts on fuel. Join Today!

Charging RV Batteries

By FMCA and the “RV Doctor” Gary Bunzer

About RV Batteries

Batteries used in RVs are lead acid batteries, which means they have several cells connected in series. Lead acid batteries do not physically make electricity; instead, they store electricity. The size of the lead plates and the amount of electrolyte the battery contains determines the amount of charge a battery can store.

Batteries are the heart of any RV. They provide power for lighting, fans, water pumps, and other 12-volt accessories. Eventually, though, batteries discharge. How long they hold a charge depends on how much they’ve been used and their condition. Boondocking, in particular, places demands on batteries and requires a bit of power management to ensure they retain their charge long enough to allow plenty of use between recharge cycles. 

How to Tell When a Lead-Acid Battery Is Fully Charged

1. Monitor the specific gravity of the electrolyte in each cell as the battery accepts the current from the charger. 

2. As the battery charges, the specific gravity will continue to rise in each cell. At some point, the specific gravity will stop its ascent and remain stable at one reading (hopefully around 1.260). 

3. When the specific gravity remains at its highest reading (regardless of the value of that reading) for a period of two to three hours, the battery is fully charged. It simply cannot accept any more current. 

Note: If it plateaus at a much lower reading than 1.260, further troubleshooting is in order; it may be time to replace that battery.

Further Reading

Inexpensive digital voltmeters can help RVers avoid costly repairs. A DC meter indicates whether the RV batteries are properly charged, and such information can prolong battery life. Read more about these devices: https://familyrvingmag.com/2018/03/01/rv-voltmeter-installation/

Good Sam Travel Assist

An important safety note: Whenever you’re working with RV batteries, make sure to wear gloves and safety glasses to prevent injury.

This information is for educational purposes. FMCA shall not be responsible nor retain liability for RVer’s use of the provided information. Prior to making any RV service decision, you are advised to consult with an RV professional. Learn more about FMCA at www.fmca.com.

You might like these

  • 10 Important RV Fuel Saving Tips

    Here is a list of the 10 best RV fuel saving tips to help stretch your RVing travel budget

  • Maintaining Your RVs Exterior

    Take pride in your home on wheels! Read these tips from FMCA and the “RV Doctor” Gary Bunzer to keep your RVs exterior looking its best

  • RV Tips for Holding Tanks

    Here are some great RV tips on how to dump and maintain your RV's holding tanks. These tips will keep you out of messy situations.


Get Your Article Published on Everything About RVing

If you have written an article about RVing, Camping or the Great Outdoors and you would like us to publish it on Everything-About-RVing.com, please visit our Submit An Article Page.

Do you have any suggestions or comments on this topic?  You can add them to this page by using the comments section located near the bottom of this page.

LEARN HOW TO RUN 2 RV A/Cs ON A 30 AMP CONNECTION

Way Interglobal
Shop Best Prices on RV Fridges, Kitchen Appliances, Griddles, Stoves, Gas Ranges, Fireplaces at Way Interglobal Today!

Get Your Article Published on Everything About RVing

If you have written an article about RVing, Camping or the Great Outdoors and you would like us to publish it on Everything-About-RVing.com, please visit our Submit An Article Page.

Comments

Do you have a comment on this topic? You can leave your comment in the box below.

Recent Articles

  1. 5 Ideal RVing Dog Breeds

    Are you looking for the perfect canine addition to your RVing family? Here are 5 ideal RVing dog breeds

    Read More

  2. Where Can We Get New Decals For Our RV?

    We purchased a Dutchmen Denali in 9-07. It had been on the dealer's lot since late 2006, in Las Vegas. Three months ago, we noticed on the front of the

    Read More

  3. New to the RV World? Invest in These Important RV Accessories

    Are you new to the RV World? You need to get these important RV Accessories

    Read More

  4. Otter Lake Camp Resort

    Editor's Note This story was submitted on our What Is Your Favorite RVing Or Camping Destination Page Otter Lake is a fun, relaxing family getaway. The

    Read More

  5. Eliminating RV Sewage Smell

    This story was submitted on our RVing Tips And Tricks Page I'm a professional motorcoach driver. (Tour bus) We do use the blue enzyme packets that are

    Read More

Fill out the form below to receive The Free
Everything About RVing Gazette
Newsletter

LEARN HOW TO RUN 2 RV A/Cs ON A 30 AMP CONNECTION

Return To The RV Lifestyles Articles Page