Monthly Archives: March 2014

How to Maintain & Recycle Deep-Cycle Batteries


Deep-Cycle battery failures are often not the fault of the batteries themselves. They do need to be attended to every once in a while. However, if they are properly maintained, they should last a very long time. The most important thing to remember about deep-cycle batteries is to buy a high quality one. A good one should last about 5 to 15 years. A low quality battery will only last about half that time.

Deep-cycle battery maintenance should be done very carefully because they contain lead-acid, which can cause serious burns. Wear safety glasses and rubber gloves when working with them. It’s advisable to fill a plastic bottle with baking soda (sodium bicarbonate) and water. This can be used to neutralize any battery acid spills that might occur during the maintenance procedure.

Corrosion is one of the most common nuisances concerning deep-cycle battery maintenance. Apply a coat of sealant that does not harden to all the metal parts of the battery including the terminals, nuts and bolts. Although there are products sold specifically for this purpose, regular petroleum jelly (Vaseline) is a good enough choice. It will not get in the way of the electrical currents. Just spread on a thin layer using your fingers. Once corrosion sets in, it’s hard to stop.

If you find that wires are exposed at any terminal, use heat shrink tubing with adherent lining to seal it, and make sure it’s airtight. You can also use shrink tape that is capable of being submerged in water.

Deep-cycle batteries should be rinsed about twice a year. This helps to cut down on build-up of dust along with acid spills and splatters. This can be done outside in a safe area like a parking lot, driveway or over a floor drain. Rinsing the battery is also a further measure to avoid corrosion and keep stray currents from robbing the battery of energy.

When the battery is ready to be recycled, it’s important to check the laws in your particular state to find out about regulations. In most states, you can simply take it to lead-acid battery retailer or wholesaler. If the location sells those same types of batteries, they must accept it for recycling. They must also accept the same number of that kind of battery that they have sold. You can also take it to an authorized recycling center.

Visit us at General Power Batteries, we are located at 970 S. Campbell Ave., Tucson. We would love to answer any of your questions. Offering great services and high quality batteries to our valued customers is our top priority.