While many press mowers are pull-started, a few walk-behind and nearly all self-propelled, riding lawn mowers feature electrical beginning, which makes it easier to begin their larger engines. Much like batteries in cars and trucks and also vehicles, the lawn mower battery makes this benefit feasible. With appropriate usage as well as upkeep, a typical battery may last 3 or four years, perhaps longer in a warmer climate. Still, it will eventually corrode or sulfate, progressively suffering reduced power result, the capability to keep a cost as well as the capability to begin.

After that, the starter solenoid might not also click when it comes time to trim the grass, which suggests you’ll require to change your mower battery. Luckily, most lawn mower batteries fall into the 12 V Group U1 layout, standardized by BCI (Battery Council International), yet they aren’t just the same. There are two primary qualities that you require matching up to guarantee the mower starts and charges accurately: incurable position and cranking amps.


Group U1 mower batteries can be found in 2 selections, U1L as well as U1R, which refer to terminal placement. Group U1L lawn mower batteries feature the favorable (+) incurable near the left edge, on top of the battery, while Team U1R batteries feature the positive terminal near the appropriate edge.

While the internal construction of U1L, as well as U1R batteries, equals, the incurable position is critical to the battery’s installment as well as connection to the mower’s electrical system. Mounting a U1L battery in a lawn mower that requires a U1R battery may be difficult, as the cables might not get to the terminals, as well as “stretching” the battery cable might bring about chafed insulation and a harmful short circuit problem. Select a battery designed to fit the mower concerned.


Larger engines are tougher to transform, which makes battery result one more important consider picking a new battery. Battery output is gauged in CCA (cold-cranking amps), which describes the quantity of current the battery can provide in 30 secs at 0 levels F, without dropping listed below 7.2 V. Select a brand-new battery with at the very least the specified CCA required by the lawn mower manufacturer.

Picking a mower battery with as well reduced CCA may not start the engine whatsoever, or, if it can begin the engine, it may ill-use the battery’s very own building and construction and use it out quicker. On the other hand, a battery with a greater CCA will certainly have no problems starting a smaller-sized engine, yet it will not offer any added advantages.

Picking the appropriate power ranking for your battery is necessary to keep your machine running efficiently– as well as your grass trimmed to excellence– for many years to find.

Take a look at every one of the batteries readily available on NAPA Online or count on one of our 17,000 NAPA AutoCare places for regular repair and maintenance. To learn more on selecting the ideal mower battery, chat with an educated specialist at your local NAPA VEHICLE COMPONENTS shop.

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