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Overhaul Your Deep Cycle Battery to Make It Run for Longer Periods

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Deep cycle batteries, also known as lead-acid batteries, are used mainly in recreational vehicles like a boat or camper. These batteries are perfect for circumstances where a machine requires a significant amount of energy for a little amount of time. In most cases, you will own a deep cycle battery of either six or twelve volts. Before overhauling or refurbishing your battery, it is crucial to determine the voltage of the battery you are using.

Surely, all types of batteries become dry or run out of life. They start losing their capability to recharge whenever it is required. Most people just buy a new one whenever such a situation occurs, but it is not always feasible to purchase a battery. There are many ways which can help refurbish a deep cycle battery so that it can get a new life and keep running for a longer period. Here is how you can service your dying deep cycle battery in just a few steps.

Refurbish a Deep Cycle Battery

Take Safety Measures

As battery ages with time, it ends up corroding. Before taking any step for cleaning the battery, make sure that you clean the white powder that might have appeared on the outer part of the battery. As this substance is toxic, it is crucial to wash it or clean it off before doing anything. Also, you must take great safety measures before you start working on a battery. Put on an apron or a thick cotton coat, plastic pair of gloves, disposable mask, and eye protection glasses before beginning the process.

Clean the Battery Thoroughly

Now once you are equipped with a protective covering, start the process by mixing a pound of baking soda in a gallon of water. It is essential because the soda makes the acid of the battery harmless. If your battery is extremely greasy and dirty, add some dish washing soap to the mixture as well.

Now separate the terminals of the battery with the help of two appropriately-sized wrenches. Once you remove the terminals, clean them and the clamps properly by using a toothbrush and the soap solution. After that, wipe down the entire battery and inspect it for possible damage or cracks. Next, dry the battery completely and lubricate the terminals with a commercial protection spray or even with petroleum jelly before attaching the clamps again.

Detach the Cell Covers of the Battery

Once you’ve cleaned the battery, you can start the primary process, which is refurbishing. Remove the battery cell covers with the help of a screwdriver; in this case, a needle-nose plier can work too. Make sure you’re wearing your protective clothing, especially the safety glasses, as each cell holds battery acid. The acid might eat through your clothes and burn your skin. Keep a rag with you during the whole process to wipe up the mess. Also, don’t let any dirt or debris enter the cells.

Fill the Cells with Distilled Water

Now fill the cells with distilled water completely. Don’t put a small amount of water in the cells as the oxygen and hydrogen left inside it might explode once sparked. Also, ensure that you’re using distilled water and not tap water. This is so because tap water is not as pure as distilled water. It contains minerals that can corrode the battery and affect its life.

To pour in the water, use either a small bottle or a funnel. Also, be careful while putting in the water. Don’t overfill any cell as the water that might spill out has been mixed with acid now. How much water you require for pouring in the battery depends on the level of acid and the size of your battery.

Get a Radiant Energy Battery Rejuvenator for Battery Plates

Filling the battery with water is not enough for refurbishing it because if it was unable to get charged with a conventional battery charger, it surely won’t start charging just after putting water in it. This is so because of the damage that is caused to the plates of the battery by being continually heated. To correct this issue, you need to have a radiant energy battery rejuvenator.

This rejuvenator can pulsate radiant energy through the plates of the battery and disintegrate the buildup of a sulfate. As the plates become free of sulfate, the deep cycle battery becomes rechargeable again. Also remember that if the plates are exceedingly inhibited, it might take many attempts of running the rejuvenator before the procedure is successful.

Test the Voltage of Your Deep Cycle Battery

Once your battery has been charged, examine how much charge it is holding by a digital voltmeter. After that, allow the battery to sit for some days and check it again. If your deep cycle battery is holding the same volts in both readings, it is ready to be used. Also, after you install it on your boat or motor, keep checking it to see if it’s holding up the same volts or not.


Refurbishing a deep cycle battery is an uncomplicated and straightforward procedure that only requires simple tools to be executed. You can get the entire job done with the help of a screwdriver, wrenches and, of course, protective gears, which you can find easily in shops or even online. Apart from that, you also require distilled water that is easily available at any pharmacy store. Other than that, there is no use of various specialized or complex tools for renewing your battery life.

The best thing about refurbishment is that you can get used batteries from your friends or family members who are discarding their dried up batteries because they no longer want to have them. Also, various shopkeepers also use refurbished drained batteries as they are available at a cheap cost and they can charge them anytime they want a new battery life.

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