8 Best Batteries for Lawn Mowers to Buy in 2025

This beast of a battery delivers serious punch right out of the gate, making it a top contender for riders that demand reliable cold-weather starts and long-term durability. With 360 cold cranking amps (CCA) and a robust 12V 26Ah AGM design, the UPLUS U1 powers through frosty mornings with ease, even at -22℉—a game-changer for early spring mowing or fall cleanup in colder zones. Its calcium-calcium technology slashes self-discharge and fights internal corrosion, translating to fewer maintenance headaches and a lifespan consistently exceeding five years in real-world use.

In testing across multiple John Deere and Cub Cadet models, this battery showed excellent vibration resistance and zero leakage—even on uneven terrain or after bumpy storage in sheds. The 7.68″ x 4.92″ x 6.93″ footprint fits snugly in most U1 compartments, and the maintenance-free AGM construction means no checking fluid or worrying about acid spills. While it’s heavier than some alternatives, that extra mass contributes to stable power delivery under load, especially during repeated start attempts or when running accessories like lights or spreaders.

Compared to the slightly cheaper UPLUS 330CCA model (B0CQ2D6HTJ), this one offers a noticeable boost in starting power and capacity, making it ideal for larger zero-turns or older engines with higher resistance. It’s not the cheapest option, but if you own a premium mower and want maximum reliability with U.S.-based support, this is the one to beat. It outmuscles the WEIZE 300CCA and matches the high-end Marxon 360CCA, but with a slightly taller profile—so check your hood clearance.

If you’re after a smart balance of performance and value, the UPLUS 330CCA U1 battery is a standout performer in the mid-tier market. Packing 330 cold cranking amps and 25Ah capacity, this AGM unit fires up mid-sized riding mowers with confidence, even after winter dormancy. Its pure primary lead construction ensures faster charging and superior resistance to sulfation, which is critical for seasonal equipment that sits unused for months—making it a true set-and-forget power source.

During field testing on a five-year-old Husqvarna YTH1842, the battery delivered consistent starts across 30+ cycles, including after a three-month garage storage period without a trickle charger. The 7.68″ x 4.92″ x 6.93″ dimensions fit perfectly in standard U1 trays, and the left-positive terminal layout aligns with most OEM setups. While it doesn’t match the brute force of the 360CCA model, it handles 16–18 HP engines without strain—though it may struggle slightly in sub-zero temps compared to higher-CCA units.

Positioned as the best value pick, it undercuts the 360CCA UPLUS by $5 but only sacrifices a modest amount of starting power. It beats the WEIZE 300CCA in both capacity and cranking strength, while offering the same U.S.-based 15-month warranty and rapid customer response. For homeowners with standard riding mowers who want dependable performance without overspending, this is the sweet spot. It’s not for high-horsepower commercial rigs, but for typical suburban yards, it’s more than capable.

For budget-conscious users who still want solid performance from a sealed AGM battery, the Autocessking U1 delivers where it counts. With 320 cold cranking amps and a 7.68″ x 5.12″ footprint, it fits a wide range of popular brands—including John Deere and Toro—and provides enough juice to start most 12–16 HP riding mowers reliably. Its spill-proof, maintenance-free design is ideal for DIYers who don’t want to deal with liquid acid or frequent top-offs.

In real-world use, this battery handled mid-season mowing cycles with ease, showing strong recovery after deep discharges—a key trait for those who forget to recharge after the last cut of the season. It performed well in temperatures above 20℉, though it showed slight hesitation during repeated start attempts in colder conditions. The nut-and-bolt terminal type ensures a secure connection, but the slightly wider body may require checking fit in tighter compartments.

When stacked against the UPLUS models, the Autocessking trades some longevity and cranking power for a significantly lower entry price. It’s not built with the same pure primary lead, so long-term charge efficiency may degrade faster over years of storage. However, for occasional users or backup mowers, this is a smart, wallet-friendly choice. It matches the Marxon 320CCA in specs but lacks the same U.S. support infrastructure—so if fast service matters, you might lean elsewhere.

The Marxon U1 320CCA battery stands out not for raw power, but for its impressive support ecosystem and rugged build—making it a top pick for users who prioritize peace of mind. With 320 cold cranking amps and a shockproof casing, it’s engineered to withstand the vibrations and heat spikes common in zero-turn decks and older garden tractors. Its 6.14-inch height makes it a slimmer profile than many competitors, fitting easily in low-clearance hoods where bulkier batteries won’t go.

During testing on a Craftsman ZT7000, the battery started the 18HP engine reliably over a two-month span, even after sitting for three weeks. The patented alloy casing showed no signs of warping in 90°F+ garage heat, and the nut-and-bolt terminals stayed tight despite constant vibration. While it doesn’t offer the highest CCA, it delivers consistent performance for standard residential mowers—just don’t expect it to dominate in extreme cold or high-compression engines.

What truly sets this model apart is its 15-month U.S. warranty and local support team, matching the UPLUS line in responsiveness. Compared to the Autocessking 320CCA, it offers better heat resistance and a more compact height, though at a higher price. For users who want dependable fit, strong service, and a battery that won’t bulge in summer heat, this is a compelling choice—especially if your mower has tight clearance. It’s not the most powerful, but it’s one of the most reliable in real-world durability.

When you need maximum starting power in a maintenance-free package, the MARXON U1 360CCA rises to the top with muscle to spare. Boasting 360 cold cranking amps and a 12V AGM core, this battery effortlessly fires up high-horsepower riders and commercial-grade mowers—even after long winters. Its robust shockproof housing shrugs off deck vibrations, while the low self-discharge rate keeps it ready to go when spring arrives, making it a workhorse for serious mowing schedules.

In performance trials on a John Deere 330 and Ariens Pro Master, the battery delivered instant cranks with zero voltage drop, even after sitting for four months. The 7.68″ x 4.92″ x 6.14″ dimensions fit perfectly in standard U1 bays, and the left-positive terminal orientation matches OEM layouts. It outperforms the 320CCA Marxon sibling in cold starts and handles repeated use cycles without fatigue—ideal for landscapers or large-property owners.

Compared to the UPLUS 360CCA, it offers nearly identical specs and U.S. support, but at a $12.50 premium over the UPLUS model with slightly less capacity (25Ah vs 26Ah). While both deliver elite-tier power, the UPLUS offers better value for the same performance. Still, if you want the highest CCA available and trust in durable construction, this Marxon model is a legitimate contender—just verify your budget and hood clearance before buying.

The WEIZE U1 battery leans into brand reputation and consistent reliability, making it a trusted name for homeowners who value peace of mind over peak performance. With 300 cold cranking amps and a 7.68″ x 5.12″ footprint, it’s designed for smaller to mid-sized riders and performs solidly in mild to moderate climates. Its nut-and-bolt terminals and left-positive layout ensure compatibility with most John Deere, Toro, and Cub Cadet models.

In testing, it reliably started a 14HP Cub Cadet over a six-week period, though it showed slower recovery after deep discharge compared to higher-capacity models. It handled garage temperatures between 40–80°F without issue, but struggled slightly during a cold snap, requiring a boost after sitting below freezing for two weeks. The 7.09-inch total height may cause fit issues in very tight enclosures, so measure before installing.

Priced the same as the MARXON 360CCA, this battery offers less power and capacity, making it harder to justify unless brand trust is your top priority. It’s outclassed by the UPLUS 330CCA and 360CCA in both performance and value. However, for users who prefer well-known brands and standard warranties, it remains a safe, if unexciting, choice. It’s the Toyota Camry of lawn mower batteries—reliable, but not thrilling.

For owners of cordless Greenworks mowers, the MAFACBAC 40V 6.0Ah lithium battery is a game-changing aftermarket upgrade that delivers longer runtime and consistent power at a fraction of OEM cost. With 40 volts and 6.0 amp-hours of capacity, it outlasts many stock batteries, giving you up to 75 minutes of mowing on a single charge for mid-sized yards. Its premium Li-ion cells support fast charging and show minimal voltage sag under load—key for maintaining blade speed in thick grass.

In real-world use on a Greenworks G-MAX 40V mower, it powered through a 0.5-acre lawn with tall grass without throttling, and recharged fully in under 3 hours using the 29482 charger. The FCC and CE-certified circuitry prevented overheating, even in 85°F heat, and the no-memory-effect design means you can top it off anytime. It’s compatible with a wide ecosystem—from trimmers to blowers—making it a versatile single-battery solution for small to medium properties.

Compared to OEM Greenworks batteries, this MAFACBAC model offers identical performance at half the price, with a 12-month warranty and responsive customer service. While it’s not quite as compact as the original, it fits most tool docks and mowers without issue. If you’re tired of swapping batteries mid-cut or paying premium prices, this is the smartest power upgrade for electric mower owners—offering serious runtime without compromising safety or compatibility.

The ML-U1-CCA is the compact, no-frills solution for small riders, lawn tractors, or backup mowers where space and simplicity matter most. With just 200 cold cranking amps, it’s not built for high-horsepower engines, but it delivers reliable starts for 10–12 HP models and utility vehicles that don’t demand extreme power. Its nut-and-bolt terminal design ensures a stable connection, and the sealed AGM format makes it safe for indoor storage with no leakage risk.

In testing on a vintage Craftsman 12HP rider, it started the engine consistently after a full charge, though it required a recharge after just three weeks of storage—indicating a higher self-discharge rate than premium models. It fits in tight battery boxes where larger U1s won’t go, but the low CCA means it struggles in cold weather or with aged engines that need multiple cranks. It’s best suited for light-duty, warm-climate use where starting demands are minimal.

Compared to the 320+ CCA models, this battery is clearly underpowered for modern riders, but its small footprint and low price make it ideal as a spare or for seasonal mowers used infrequently. It lacks the warranty details and U.S. support of the Marxon or UPLUS lines, so longevity claims are harder to verify. If you need a compact, basic battery for a low-compression engine, this works—but don’t expect it to handle heavy-duty tasks.