Best Rechargeable Batteries For Lawn Mowers: 12V and Cordless Picks

#1 · Best Overall

1. UPLUS U1 Riding Battery

• Voltage: 12 V
• Dimensions: 4.92 x 7.68 x 6.93 in
• Battery Capacity: 320 milliamp hours
• Warranty Description: 15 months

Best for: U1 riding-mower starter.

Why it ranks #1: A mower-specific U1 AGM battery with 12V, 330 CCA, stated 25Ah capacity, maintenance-free construction, and clearly listed dimensions and terminal polarity.

The UPLUS U1 combines a stated 12-volt output with 330 CCA for garden-tractor and riding-mower starting needs. Its sealed AGM construction is maintenance-free, with no water checks, spills, or leaks listed, making it a straightforward option for owners replacing a conventional U1 mower battery.

The 330-CCA rating is the most relevant starting specification, while the 12-volt output identifies its electrical class. UPLUS describes the AGM battery as sealed and maintenance-free, avoiding routine water checks and helping contain electrolyte. Its stated 7.68-by-4.92-by-6.93-inch dimensions and left-positive, right-negative terminals give buyers concrete installation details to compare with the existing battery. The product also calls for monthly visual inspections and occasional terminal cleaning, so maintenance is reduced rather than eliminated entirely.

Skip it if you want to avoid even periodic inspection and terminal cleaning; this battery’s care guidance calls for both.

This suits riding-mower and garden-tractor owners seeking a 12-volt U1 AGM battery with 330 CCA and stated terminal orientation. Compare its dimensions and polarity, and follow the listed inspection and cleaning guidance.

Listed on Amazon as: UPLUS U1 Riding Lawn Mower Battery, 12V 330CCA for Garden Tractors

#2 · Highest Cranking

2. Energizer EN-U1-350-GEL

• Voltage: 12 V
• Dimensions: 7.74"D x 5.13"W x 6.92"H
• Warranty Description: 1 Year Manufacturers Warranty

Best for: Deep-cycle tractor starting.

Why it ranks #2: Its U1-format 12V battery lists 350 CCA and GEL deep-cycle technology, making it a strong starting-battery option for tractors and lawn mowers.

With 350 cold-cranking amps and GEL technology, the Energizer EN-U1-350-GEL combines a strong stated starting figure with a battery chemistry advertised for longer cycle life than standard batteries. Its 12-volt output makes it an option for compatible tractors, lawn mowers, and other listed utility equipment.

The 350-CCA rating addresses starting demand, while GEL technology is described as supporting longer cycle life than standard batteries, a useful combination for lawn and garden equipment that sees repeated seasonal use. Energizer also describes the battery as suited to mobility and utility equipment. At 7.74 by 5.13 by 6.92 inches, its published dimensions help assess placement in a mower battery compartment. Compatibility should be checked against the equipment’s own battery requirements.

Skip it if you need a stated amp-hour figure to compare stored capacity; this listing gives voltage and CCA but no capacity number.

Choose this Energizer for a compatible tractor or mower where 350 CCA and GEL cycle-life claims are priorities. Its listed dimensions and 12-volt rating help narrow fit, but the supplied specifications do not provide amp-hour capacity.

Listed on Amazon as: Energizer EN-U1-350-GEL, 12 Volt 350 CCA, Long Lasting Sealed Lead Acid AGM Rechargeable Battery Ideal For Use In Tractors, Lawn Mowers, and more

#3 · Broad Mower Fit

3. MARXON U1-330 Battery

• Warranty Description: 15 MONTH

Best for: U1 tractor battery replacement.

Why it ranks #3: The 12V U1 battery is listed for riding mowers, lawn tractors, and garden tractors, and its product title specifies 330 CCA.

The MARXON U1-330 is identified for riding mowers, lawn tractors, and garden tractors, making its stated 12V and 330CCA format a direct fit category for many small-engine applications. Included screw-and-nut hardware gives buyers terminal fastening components alongside the battery.

Its U1 designation and 330CCA listing point toward riding-mower and garden-tractor starting applications, while the 12V specification identifies the electrical class. MARXON lists compatibility with yard mowers, ride-on lawnmowers, and lawn tractors, giving users several relevant equipment categories to consider. The included battery screw and nut can support terminal attachment, but buyers still need to compare the battery’s physical and terminal requirements with their machine before installation; no dimensions are supplied in the provided details.

Skip it if you need published dimensions before assessing a tight battery compartment; UPLUS 330-u1 lists its dimensions and terminal polarity.

This is aimed at owners of compatible riding mowers, lawn tractors, and garden tractors seeking a U1-format 12V, 330CCA battery. The included fastening hardware is useful, but the supplied details omit dimensions.

Listed on Amazon as: MARXON U1 Riding Lawn Mower Battery Garden Tractors Battery 12V 330CCA

#4 · Left-Positive Terminals

4. Mighty Max ML-U1-CCAHR

• Voltage: 12 V
• Dimensions: 7.75 x 5.11 x 6.25 in
• Battery Capacity: 320 amp hours
• Warranty Description: 1 Year Manufacturer

Best for: U1 high-cranking replacement.

Why it ranks #4: This 12V SLA AGM mower-compatible battery provides 320 CCA, with listed dimensions and left-positive, right-negative terminal polarity.

A 320-CCA rating gives the Mighty Max ML-U1-CCAHR a clear role in lawn equipment that needs a 12-volt starting battery. Its sealed AGM construction is spill-proof, while the listed Craftsman 25780 compatibility makes it a specific option for owners of that mower.

The 12-volt, 320-CCA specification is the key fit for a compatible mower starter, and the AGM design is sealed and spill-proof for less concern about leaks during installation or use. Mighty Max also lists wide operating temperatures and deep-discharge recovery, useful traits for equipment that may sit between mowing sessions. Check the stated 7.75-by-5.11-by-6.25-inch dimensions and left-positive, right-negative polarity. The package includes the battery and screws, but no wiring harness or mounting accessories.

Skip it if you need a complete wiring-and-mounting kit; this listing includes only the battery and screws, not those accessories.

This suits a Craftsman 25780 owner seeking a 12-volt, 320-CCA AGM replacement with stated polarity and compact dimensions. It is not a complete installation kit, so account for the separately needed harness or mounting parts.

Listed on Amazon as: ML-U1-CCAHR -12 Volt, 320 CCA, Nut and Bolt (NB) Terminal, Rechargeable SLA AGM High Rate Series Battery

#5

5. Greenworks 60V Battery

• Voltage: 60 V
• Dimensions: 4.66 x 3.28 x 6.8 in
• Battery Capacity: 4
• Warranty Description: 3 year warranty

Best for: Greenworks 60V tool battery.

Why it ranks #5: A 4.0Ah cordless pack explicitly compatible with Greenworks 60V lawn mowers and other tools; its onboard fuel indicator shows remaining power.

Greenworks’ 60V, 4.0Ah high-current battery supplies fade-free power and an onboard fuel indicator for users of compatible Greenworks tools. Its listed compatibility spans more than 75 Greenworks 60V tools, including lawn mowers, so owners can check remaining power and move the pack across their system.

The 4.0Ah high-current specification and fade-free power claim are aimed at supporting compatible 60V tools through their work, while the onboard indicator gives a quick reference to remaining charge. Greenworks lists compatibility with more than 75 60V tools, including mowers, trimmers, and blowers, enabling battery sharing across that ecosystem. The supplied description says it charges in 75 minutes using a Greenworks charger. It remains specific to Greenworks 60V equipment, rather than a universal mower battery.

Skip it if you own Wild Badger Power 40V tools; its WB40V4.0AHB is listed for that separate platform.

Greenworks 60V owners seeking a shared battery for compatible mowers and other tools will value the indicator and broad system compatibility. The 75-minute charging statement specifies a Greenworks charger, and the pack is not for other voltage platforms.

Listed on Amazon as: Greenworks 60V 4.0AH High Current (HC) Battery | Provides Fade-Free Power for Maximum Performance | Compatible with 75+ 60V Greenworks Tools

#6

6. Azonpower Kobalt 40V Kit

• Warranty Description: 2Year

Best for: Kobalt 40V replacement kit.

Why it ranks #6: A 6.0Ah replacement kit for Kobalt 40V tools, including lawn mowers, and it includes a charger for a ready-to-use platform replacement.

The Azonpower kit pairs a replacement 6.0Ah Kobalt-compatible 40V battery with a fast charger, supplying both a pack and charging hardware for the listed tool system. Its compatibility covers Kobalt 40V cordless tools, including mowers, trimmers, and blowers, making it a practical system-specific replacement.

A 6.0Ah capacity gives Kobalt 40V tool owners a replacement pack, while the included fast charger means the kit covers charging as well as battery replacement. The listing names Kobalt cordless lawn mowers, trimmers, and blowers among compatible equipment, and supplies an extensive set of model references for the 40V line. That system-specific scope can simplify replacing a worn pack, but it is not a general-purpose battery for unrelated mower platforms.

Skip it if you do not own compatible Kobalt 40V tools; Greenworks LB604 serves the separate Greenworks 60V system.

Kobalt 40V tool owners needing a replacement pack and charger in one kit are the intended buyers. Check the listed model compatibility for your equipment; the 40V Kobalt system boundary rules out other platforms.

Listed on Amazon as: Replacement 6.0Ah Kobalt 40V Battery and Charger for KB-540-06/KB440-06/KB240-06 Series | Compatible with 40 Volt Max Kobalt Cordless Power Tools | Fast Charging

#7

7. Wild Badger Power 40V Battery

• Voltage: 40 V
• Dimensions: 7 x 4 x 4 in
• Battery Capacity: 4 amp hours
• Warranty Description: 3 Year

Best for: Wild Badger 40V tool users.

Why it ranks #7: The 4.0Ah, 40V lithium-ion pack is specified for lawn mowers and other Wild Badger 40V tools, with an LED battery-status display.

A 40V, 4.0Ah lithium-ion pack gives Wild Badger Power tool owners a shared battery for listed mowers, trimmers, blowers, and other equipment. Its LED indicators show charging progress, and the stated quick-install design supports swapping the pack between compatible tools without a complicated changeover.

The 4.0Ah capacity and 40V platform provide a replacement battery for the brand’s listed cordless tools, including lawn mowers, string trimmers, and leaf blowers. The quick-install feature supports moving the pack between tools as the job changes, while LED lights make charging progress visible at a glance. This flexibility is useful within the Wild Badger 40V system, but it does not make the battery compatible with unrelated mower brands or conventional 12-volt starters.

Skip it if you use Greenworks 60V equipment; the Greenworks LB604 is listed for that separate tool platform.

This fits Wild Badger Power 40V owners who want one removable pack for compatible mowers and other listed tools. Keep the 40V ecosystem boundary in mind; it is not a conventional riding-mower starter battery.

Listed on Amazon as: Wild Badger Power WB40V4.0AHB 40 Volt 4.0Ah Lithium-Ion Battery, Blue – High-Capacity Power for 40V Tools, Compatible with String Trimmers, Leaf Blowers, Lawn Mowers & More

#8

8. WORX PowerShare Pro 4.0Ah

• Voltage: 20 V
• Dimensions: 4.6 x 3 x 2.6 in
• Battery Capacity: 4 amp hours
• Warranty Description: 3 Year

Best for: WORX tool-system spares.

Why it ranks #8: These 20V packs work with WORX 20V and 40V cordless tools and outdoor equipment, but the listing does not identify a specific mower model.

Two 4.0Ah PowerShare Pro batteries provide a ready pair of rechargeable packs for users of WORX cordless outdoor equipment. Each is a 20-volt battery, and WORX states that 4.0Ah models offer twice the runtime of its 2.0Ah batteries, helping reduce interruptions for compatible tool users.

The two-pack is useful when a compatible WORX tool user wants a second charged battery available while the other is in use. The 4.0Ah capacity is stated to deliver twice the runtime of 2.0Ah batteries, while 360-degree cell protection is intended to increase security against vibration and impact. Compatibility spans WORX 20V and 40V cordless tools and outdoor equipment, but this is a tool battery pack, not a universal mower starter battery.

Skip it if you need a conventional 12-volt riding-mower starter battery; the Mighty Max ML-U1-CCAHR is listed at 12 volts and 320 CCA.

This is for WORX cordless outdoor-tool owners who want two 4.0Ah packs and cross-compatibility across listed 20V and 40V equipment. It is not a drop-in replacement for a conventional 12-volt riding-mower battery.

Listed on Amazon as: WORX 20V 4.0Ah Lithium-ion Battery 2 pcs, WA3674.J2

#9

9. LawnMaster MX24V Battery

• Voltage: 24 V
• Dimensions: 5.04 x 3.46 x 3.27 in
• Battery Capacity: 4 amp hours
• Warranty Description: 1 year

Best for: LawnMaster shared-system pack.

Why it ranks #9: The 24V, 4.0Ah battery fits LawnMaster and Vacmaster 24V and 48V products and has an LED indicator, though mower fit is not specifically stated.

A shared 24V and 48V compatibility claim makes the LawnMaster MX24V 4.0Ah battery useful across listed LawnMaster and Vacmaster products. Its LED power indicator shows battery status, while the ability to recharge fully or partially without capacity loss supports flexible charging between outdoor jobs.

The 4.0Ah capacity and compatibility with LawnMaster and Vacmaster 24V and 48V products let owners use one battery platform across supported equipment. An LED power indicator provides a quick status check before heading out, while the stated no-capacity-loss feature supports topping up after shorter jobs instead of waiting for a full discharge. Overheat, overvoltage, short-circuit, and overcurrent protections are listed. This is a system battery, so its usefulness depends on owning compatible tools.

Skip it if you use another battery platform; Wild Badger Power WB40V4.0AHB is listed for its own 40V tool system instead.

This suits owners of compatible LawnMaster or Vacmaster 24V/48V equipment who value status visibility and flexible charging. Its ecosystem compatibility is the deciding boundary; it is not a universal lawn-mower starting battery.

Listed on Amazon as: LawnMaster MX24V 4.0Ah Battery – Compatible and Vacmaster 24V/48V Cordless Products 24LB4005-CN

#10

10. ExpertPower EXP12200

• Voltage: 12 V
• Dimensions: 7.1 x 6.6 x 3 in
• Battery Capacity: 20 amp hours
• Warranty Description: 90-Day Money Back Guarantee / 1-Year Limited…

Best for: Maintenance-free AGM utility.

Why it ranks #10: This 12V, 20Ah AGM battery is listed for lawn mowers among many uses, but its dimensions and details do not establish fit as a mower starter replacement.

A 20Ah capacity and spill-resistant AGM construction give the ExpertPower EXP12200 a broad utility role across equipment including lawn mowers, generators, and UPS systems. Its sealed design needs no routine upkeep, making it relevant for owners who want a rechargeable battery for standby or active-duty applications.

The 12-volt, 20Ah specification provides a concrete capacity figure, while the AGM design immobilizes the electrolyte in a fiberglass mat and is described as spill-proof. That sealed, maintenance-free construction can simplify use in equipment that is stored between jobs, and the product is listed for lawn mowers alongside generators, mobility devices, and UPS units. Its 7.1-by-6.6-by-3-inch dimensions and 12.2-pound listed battery weight are useful checks before choosing a mounting location.

Skip it if you require a published CCA figure for a mower starter; Energizer EN-U1-350-GEL lists 350 CCA.

This fits buyers seeking a sealed 12-volt AGM battery for a broad range of standby or active-duty uses, including listed mower applications. Consider its 20Ah capacity and dimensions, and note that no CCA figure is provided.

Listed on Amazon as: ExpertPower EXP12200 12V 20Ah – SLA Rechargeable 12V Battery for Ride on Toys, UPS, Lawn Mower, Generator, Medical Devices, Wheelchair, Mobility Scooter Battery Replacement 12 Volt AGM