If they don't, one may have issues connecting the new battery. When buying a new battery, be sure that the terminals and the orientation of the new battery match the terminal type and orientation of the old battery. Terminal Position and Typeīatteries come with different terminal types and with different terminal orientations. Since AGM and Gel-Cell batteries are spill-proof and maintenance-free batteries, they are recommended models for lawn mowers, lawn tractors, power generators, etc. Lead-acid batteries differ in design and can be wet/flooded, enhanced wet/flooded, Absorbent Glass Mat (AGM), and Gel-Cell batteries.
When compared with lithium batteries, lead-acid batteries are much heavier, have issues with capacity decrease when being discharged with strong currents, don't support a large number of charging/discharging cycles, etc.īut, as starting batteries, lead-acid batteries are very reliable, robust, and very tolerant to charging conditions, and they are mostly cheaper than lithium batteries. Thanks to the built-in BMS, lithium batteries can be recharged using onboard alternators and often using older style lead-acid battery chargers (model dependent), but they should NOT be recharged using modern intelligent lead-acid battery chargers - such chargers can even damage the BMS system and void the lithium battery warranty.Īlthough lithium starting batteries are several times lighter than lead-acid batteries, weight savings for lawn mowers and tractors, and other similar vehicles and garden tools and appliances are not worth the price difference and potential complications.
Lithium batteries, even Lithium Iron Phosphate (LiFePO 4) batteries, are rather sensitive power sources that feature Battery Management Systems (BMS) that make their use much safer since BMS protects the battery from unwanted events like overcharge, over-discharge, over-current, short-circuit, over-temperature, etc. There are basically two types of batteries used as starting batteries - lithium and lead-acid batteries. Since most manufacturers tend to move to 12V electric systems, in this article, we are going to discuss only 12V batteries.
Most riding lawn mowers use 12V batteries, but there are also some models, especially smaller ones, that use 6V batteries. When looking for a lawn mower battery replacement, there are a few things to consider first: Battery Voltage: Is a riding lawn mower battery a 12-volt battery? The size of the internal combustion engines found in power generators, lawn mowers, and tractors vary from just 2-3 HPs to large 30-40 HP gas engines powering large riding lawn mowers.Īnd because of that, starting batteries used in such vehicles and devices vary from small batteries being able to provide a few dozen of CCA Amps to larger batteries being able to crank even a smaller car.
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Most of such vehicles, tools, and appliances also feature a manual recoil starting system, but it is much more convenient to press the button or turn the key and start the engine - just like in cars. Riding lawn mowers, lawn tractors, power generators, and other tools and appliances are commonly powered by internal combustion engines, which use small rechargeable batteries for starting. Most Common Lawn Mower Starting Battery Sizes
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How to Charge Lawn Mower and Tractor Batteries Intro to Lawn Mower, Lawn Tractor, and Garden Starting Batteries When looking for a new battery, one must pay attention to several details in order to get the right battery that will serve well for years ahead. Best Lawn Mower and Tractor Batteries - Types, Sizes, and ReplacementsĪ lawn mower, tractor, and garden starting batteries are used for starting/cranking internal combustion engines and sometimes for powering other electric loads, including lights, smaller winches, various pumps, and similar devices.
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