Amp Hours (Ah)ĭeep cycle batteries, which are designed to provide ongoing power and are often discharged at least 50 percent on a regular basis, are typically rated in terms of amp-hours (Ah) instead of CCAs. A battery with a high CCA like the Mighty Max ML-U1-CCAHR-our top pick-stand up well to the cold for powerful energy no matter when you choose to mow. While it is unlikely that you would be using a lawn mower on frigid days, this can give you a sense of how powerful (and reliable) the battery may be.Ī battery with a too-low CCA rating may not provide sufficient current to start your mower. Specifically, this clarifies the current, measured in amps, that the battery can achieve in 30 seconds at 0 degrees Fahrenheit. Battery Rating Cold-Cranking Amps (CCA)ĬCA is a rating that tells you how much current a fully-charged battery can deliver in cold temperatures. Lithium, or lithium-ion batteries are growing in popularity for their efficiency, high energy storage, and performance in cold and hot temperatures. Gel batteries excel at resisting shock and can be mounted in any position, plus they’re considered maintenance-free because there’s no need to add water the downside is that they’re susceptible to overheating. There are also rechargeable absorbent glass mat (AGM) batteries, which last longer but cost more up front. The most common, with a long track record of safety, are rechargeable sealed lead acid (SLA) batteries. There are several types of batteries used in lawn mowers and other small electric vehicles. For the rest of the buyers in the market for lawn mower batteries, keep the following in mind. If your mower takes a battery that deviates outside of that standard voltage or size range, your options for replacements are more limited in that case, we suggest consulting your mower’s manufacturer. Most riding mower batteries have the same common voltage-12 volts-and the majority also have similar dimensions, falling within an inch or two of standard format in terms of height, width, and length.
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