Don’t Make This Mistake When Buying Marine Batteries

by | Nov 14, 2016 | Electrical

Owning a boat is a great way to get out on the water and enjoy some amazing times with friends, family or on your own. Having reliable batteries for the boat is going to be important to be able to start your boat whenever needed.

There are several important considerations to keep in mind when you buy marine batteries. If you have purchased a new boat using the same type of battery is always a good choice. However, if you buy a used boat don’t assume that the current battery is the best option. Go back to the engine manual or the original manufacturer to find out if the battery in the boat is the right option before buying a replacement.

Type of Battery

There are different types of marine batteries that are based on the type of boat and the type of battery needs. Some batteries are only needed to start the boat and then are called cranking or starting batteries. The batteries that are used for additional power on the boat are called deep-cycle batteries.

These are two different types of batteries. The cranking batteries deliver a sustained burst of power to turn the engine. The deep-cycle batteries have to have a long life to power the accessories or the trolling motors on the boats over long periods of time.

Look at the RC or reserve capacity rating on the existing battery. High RC ratings are deep-cycle batteries while higher Cranking Amps (CA or MCA) are for cranking batteries.

No Switching

These marine batteries have different designs. While it may be possible to use one for the other once or twice, the result will be a battery that doesn’t hold up. Cranking batteries won’t last to provide power for trolling and continual use and deep-cycle batteries can’t provide the boost of power to start the engine.

If you need help in choosing marine batteries, talk to the expert staff at Motor City Battery Company. To see our inventory, you can also visit us online at You can also connect them on Facebook for more updates.

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