Most modern motorcycles require a motorcycle battery to power their electrical systems. Currently, there are two main types available on the market: the conventional type and the maintenance free type. Although they are an often overlooked component, knowing the differences between the two types of batteries can help you better understand your specific maintenance needs and costs.

The conventional type of battery consists of flooded electrolyte and cell-accessible construction. Although they are less expensive than maintenance-free batteries, they do require more attention. Due to the electrolysis and evaporation process, water loss is normal and therefore periodic addition of distilled water is required. If the battery water level falls below the minimum fill line, the battery can be permanently damaged as the lead plates are exposed to air. For this reason, it is important to keep water levels above the minimum fill lines.

With a maintenance free battery, on the other hand, water loss is eliminated as the unit is designed to remain permanently sealed once it is filled with acid. Although it is slightly more expensive than conventional batteries, it is currently popular with many motorcycle enthusiasts. Because the battery unit is completely sealed, all the acid is absorbed in the special plates and separators; there’s no need to worry about acid leaks or refilling the battery with distilled water. Even after months of normal use, there would be enough electrolytes to keep the plates covered due to the number of independent electrolytes sitting on top of the plates.

Knowing the difference between the two types of batteries can help the rider make a better decision about which type of motorcycle battery to use for their bike and maintenance habits. Either way, proper battery maintenance will help ensure long-term use and can save money in the long run.