How to Replace RV Battery

An RV battery will keep your recreational vehicle powered for a long hour. A quality battery for your motor is essential when you are going for a trip with your family or planning for a long drive. An RV battery should be able to supply power for long period to your non- engine systems such as an oven, water pump, lights and other appliances.

The batteries that used in our recreational vehicles and the battery that start our cars are different. The RV battery is a set of house batteries, many batteries are wired together to supply a single source of power.

Lead-acid batteries are used in RV. In Lead acid batteries sulfuric acid is 36 percent and water is 64 percent. It is made of lead, plates and lead oxide submerged in the electrolyte. In RV battery, numbers of cells are linked in a series. Each cell gives about 1.2 volts; a battery that has 6 cells in a series has given 12.6 volts. Lead-acid batteries only store electricity. The amounts of charge a battery can store depend on the size of the lead plates and the amount of electrolyte.

Before buying RV battery, you need to understand what a battery is and how it works. Just click on the link to get more information about your RV battery requirement.

The main battery which supplies electricity to your appliances comes with 12 volts. You can make it either using one 12 volt battery with 6 cells or two 6 volt batteries with 3 cells. Many people prefer to use two 6 volts for making the main battery because it doubles the voltage and long lasting.

When your battery is less than 50 percent charged, it is not wise to recharge it immediately. Using the battery having below 20 percent charge can cause damage to the same.

While storing do not forget to remove the ground wire, so that it does not drain quickly.

Don’t store the battery when it is fully discharged, in this condition the battery plates becomes hard and does not supply power. Although you don’t use it for a long time, but charge it in every 3 months.

For prolonging the life of the battery clean it regularly. At the time of cleaning use gloves and goggles, because acid can make serious damage to your skin. Clean it with baking soda, water, and wire brush and at the end rub petroleum jelly or grease which reduce the corrosion formation.

Top 5 RV Battery Review

1. Optima Batteries 8016-103 D24M

Normal voltage is 12 volt and Cranking Amps is 750. Weight is 43.5 pounds and Dimensions are 10 x 6.9 x 7.8 inches. Post Type is dual SAE with 5/16 Stainless Stud. The total capacity of the battery is 55 Ah C20.

The plate movement of the battery has restricted because of its rigid construction, which makes it bear intense vibrations and shock, and work properly in bad weather. The warranty period of the product is 24 months.


  •   Even if you utilize it fully it can run for 11 hours with half of the battery left
  •  It is very tough to resist pounding and it does not have gel inside.
  • Installation of the battery is very easy, even beginners can do it easily.


  • It is little pricey but you love it.

2. Vmaxtanks Vmaxslr125 AGM Deep Cycle battery

The battery performance is extremely high and it has claimed an average lifetime of 8-10 years. The vmaxslr125 is a 12 volt 125 AH AGM deep cycle battery and powered by solar energy. Dimensions are 6.8 x 12.9 x 8.7 inches and weight is 75 pounds.

The battery has no leakage problems or maintenance problems, like your average lead acid battery. The battery has designed with recombination capabilities with absolutely no gas or hazardous fumes.


  • An average floats life of 8 to 10 years
  • Easy to maintain and leakage free
  • Battery reserve capacity is around 260 minutes
  • It charge quickly and discharge is slow


  •  You can return it to the seller.

3. Universal UB1200 12V 100AH Deep Cycle AGM

The battery is a non-spillable, it does not require additional water during the life of the battery. It is with 12V 100Ah, the size is 12.17 inches x 6.61 inches x 9.16 inches and weight is 63.93 pounds. The battery is resistant to vibration and shock. The warranty period of the battery is 1 year.


  • Per month standing self-discharge is less than 3%.
  • It can work fine with a solar charging system.
  •  Maintenance Free
  •  Leak Proof or Spill Proof


  •  The price is a bit high

4. Lifeline Marine AGM Battery

It is with 6 volts and an amp of 20 hours. The dimensions are 10.3 x 7.1 x 9.9 inches and weight is 66 pounds. It is awesome for RV, marine and solar uses. It has 1000 cycles with 50% discharge depth which makes it ideal for industrial uses.


  • It works great even if you use two of these wired together with a 300-watt solar system
  • With 220 amps, the power will never run out.
  •  Maintenance Free


  • Little expensive than others

5. Odyssey PC80 Battery

The dimensions are 7.3 x 3.1 x 6.7 inches, 12 volts, 16A and the weight is 15.4 pounds. Between 4 to 6 hours, it can recharge to 100%. It is vibration resistant. The replacement warranty is 2 years and life service is 3 to 10-year.


  • It does not create problem in cold weather and with heavy electric loads
  • The power is awesome and Spill Proof
  • Installation of the battery is very easy


  • The size is not universal, so first, you ensure it is going to fit in your RV or not.

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