9 Best Lawn Mower Battery AGM (November 2026)

The best AGM lawn mower batteries include the ExpertPower EXP12200 12V 20Ah for higher battery capacity, the Mighty Max Battery ML-U1-CCAHR -12 Volt for most riding mower starts, and the Mighty Max Battery YTZ14S -12 Volt 11.2 for compact battery spaces.

On this page (6 sections)

1. Which lawn mower battery AGM is best for most riding mowers?
2. How we compared the best lawn mower battery AGM picks
3. Best lawn mower battery AGM picks by use
4. What should you check before buying an AGM mower battery?
5. How do you install and maintain an AGM lawn mower battery?
6. What is the best lawn mower battery AGM for your mower?

The best lawn mower battery AGM for most riding mowers is the Mighty Max ML-U1-CCAHR, with 12V power, 320 CCA and a mower-focused U1 fit. Choose Energizer for 350 CCA, Honda for select electric-start models, or ExpertPower when higher amp-hour capacity matters more than a stated cranking figure.

AGM batteries are sealed lead-acid batteries that use absorbed glass mat construction. They are useful for mower owners who want a rechargeable battery without routine water filling, but fit still comes first.

We compared voltage, capacity, stated cranking output, dimensions, polarity, terminals and listed mower compatibility. Our score weighs specs, features and buyer feedback against what you're shopping for.

Use this guide with our best U1 lawn mower battery comparison if your mower uses the common U1 battery shape. If you own a specific brand, the guides to the best lawn mower battery for Husqvarna and best Honda lawn mower battery can narrow the fit.

Our picks at a glance

1. 1
   Best for higher battery capacity

   ExpertPower EXP12200 12V 20Ah

   9.7/10 our score

   See it on Amazon
2. 2
   Best for most riding mower starts

   Mighty Max Battery ML-U1-CCAHR -12 Volt

   9.6/10 our score

   See it on Amazon
3. 3
   Best for compact battery spaces

   Mighty Max Battery YTZ14S -12 Volt 11.2

   9.4/10 our score

   See it on Amazon

4. 4

   Westcap Power Equipment Honda 12V 2.8Ah Sealed Lead

   Best for select Honda electric-start mowers
   Check it
5. 5

   12V 13AH Battery

   Best for Ariens and Gravely replacements
   Check it
6. 6

   Energizer EN-U1-350-GEL

   Best for highest stated cranking output
   Check it
7. 7

   UPLUS YTZ14S Motorcycle AGM Replacement Battery Maintenance

   Best for listed Cub Cadet fits
   Check it
8. 8

   CUB CADET 490-280-F016 Battery AGM 7AHR CC

   Best for Cub Cadet CC30H owners
   Check it
9. 9

   Interstate Batteries SLA Battery 12V 35Ah AGM

   Best for larger capacity needs
   Check it

Which lawn mower battery AGM is best for most riding mowers?

The Mighty Max ML-U1-CCAHR is the strongest general pick for many riding mowers because it combines 12V power with 320 CCA and a listed fit across many larger mower engines.

Its U1 style format suits tractors and riding mowers that already use that tray shape. Owners do not need a narrow model specific replacement when the size and connections match.

The battery measures 7.75 x 5.11 x 6.25 in, so every measurement must match your mower. A unit that is too tall, wide or long can sit poorly and strain cables or hold down hardware.

NB terminals also need checking. Positive polarity on the left and negative on the right must align with the harness, and the cable ends must attach firmly.

The Energizer EN-U1-350-GEL has a higher stated 350 CCA, while the ExpertPower EXP12200 offers 20Ah without a stated CCA figure. The Mighty Max YTZ14S and UPLUS YTZ14S are compact alternatives, but they are not interchangeable with U1 batteries.

voltage, tray size, polarity and terminals should be checked together. The best pick matches the mower in all four areas.

How we compared the best lawn mower battery AGM picks

We gave the most weight to the details that decide whether a mower can start, fit and connect without harness changes.

• Voltage: Every pick here is a 12V battery or a 12V replacement, matching most mower starting systems in this group.
• Fit: Dimensions, model numbers, battery size and vehicle compatibility separate direct replacements from similar looking batteries.
• Starting output: Stated CCA matters for engines needing stronger starts on cold mornings or after storage.
• Capacity: Amp hours describe stored capacity, but do not replace correct fit or terminal layout.
• Terminals: NB, flag, bolt and F1/F2 connections are not interchangeable without the correct connector or adapter.
• Maintenance: Sealed AGM, SLA, VRLA and GEL designs reduce routine upkeep compared with batteries needing water checks.

Polarity matters because reversed cables can create a poor connection or damage electrical parts. Weight matters too, since the tray must keep a heavy battery still during vibration and normal mowing use.

A higher number alone does not make a battery the right choice. Specs only help when they line up with the machine in front of you.

Best lawn mower battery AGM picks by use

The best choice depends on your mower's tray and electrical requirements. The products below are listed from the highest score to the lowest, and each one solves a different fit or capacity problem.

1

ExpertPower EXP12200 12V 20Ah: Best for higher battery capacity

9.7/10Our score

• 12V
• 20Ah capacity
• AGM sealed lead acid
• NB terminals
• 7.1 x 6.6 x 3 in

The 20Ah capacity gives this sealed AGM battery a strong fit for equipment that needs more stored capacity than a small mower battery. Its NB terminals and compact dimensions still require a direct fit check.

See it on Amazon

Pros

• 20Ah capacity
• Maintenance-free AGM design
• Rechargeable

Cons

• No CCA figure in the supplied product data
• NB terminal fit must match

ExpertPower's EXP12200 stands out for its 20Ah capacity and 12V AGM sealed lead acid design. It measures 7.1 x 6.6 x 3 in with NB terminals, in a compact format for equipment that accepts it.

The rechargeable battery is maintenance free, so routine water upkeep is not part of normal ownership. Its sealed design suits standby or active duty use without regular electrolyte checks.

Listed uses include lawn mowers, UPS systems, generators, medical devices, wheelchairs and mobility scooters. That broad list shows compatibility, but mower fit still depends on tray size and terminal layout.

Capacity is higher than several compact mower and motorcycle style batteries here. Extra stored capacity can help equipment that draws power over time, although it does not prove stronger engine cranking.

No CCA figure is stated, so buyers focused on starting output should compare with a battery that publishes CCA. Clean connections, correct polarity and a secure tray fit remain essential.

Choose it when 20Ah capacity and sealed AGM construction are priorities. Measure the tray and confirm the NB terminal arrangement first.

2

Mighty Max Battery ML-U1-CCAHR -12 Volt: Best for most riding mower starts

9.6/10Our score

• 12V
• 320 CCA
• U1 mower fit
• SLA AGM
• NB terminals

This U1-style AGM battery combines 12V power with 320 CCA and a long list of riding mower matches. It is the clearest general choice when the mower accepts its size, polarity and NB terminals.

See it on Amazon

Pros

• 320 CCA
• Mower-focused compatibility
• Spill-proof AGM design

Cons

• No wire harness or mounting accessories
• Larger than compact motorcycle-style batteries

The ML-U1-CCAHR is the clearest all around mower choice because it combines 12V power with 320 CCA and listed fit for Craftsman, Cub Cadet, Husqvarna, Toro, John Deere, Ariens, Troy-Bilt and other riding mowers.

Its sealed SLA AGM design is spill proof and can be mounted in different positions. That flexibility helps when tray space and cable routing leave little room during installation.

It measures 7.75 x 5.11 x 6.25 in, with positive polarity on the left and negative on the right. Compare those details with the old battery, since a reversed or oversized unit will not work well.

The package includes battery and screws only, with no wire harness or mounting accessories. Existing mower hardware must therefore match the replacement.

Sealed construction reduces upkeep and resists vibration, while the high discharge rate and wide operating temperature range suit changing weather. It suits larger riding mowers, not compact trays needing a smaller YTZ14S body.

Pick it when U1 dimensions, polarity and NB terminals fit your machine. For a brand specific check, compare John Deere mower batteries.

3

Mighty Max Battery YTZ14S -12 Volt 11.2: Best for compact battery spaces

9.4/10Our score

• 12V
• 11.2Ah
• 230 CCA
• YTZ14S size
• Bolt terminal

The YTZ14S uses a compact body with 230 CCA, making it useful where a full U1 battery cannot fit. Confirm the mower's battery tray, polarity and bolt-terminal connection first.

See it on Amazon

Pros

• Compact dimensions
• 230 CCA
• Maintenance-free AGM design

Cons

• Lower capacity than the 20Ah pick
• No wire harness or mounting accessories

The Mighty Max YTZ14S is a compact 12V AGM option with 230 CCA and 11.2Ah capacity. Its 6 x 3.44 x 4.38 in dimensions are much smaller than the U1 style batteries, which can help when the mower has a short or narrow battery tray.

It uses a bolt terminal and has positive polarity on the left and negative on the right. Those connection details matter in a small compartment, where limited space can make a mismatched cable hard to route or secure.

The battery is rechargeable, maintenance free and described as suitable for ATV use, so mower compatibility must be confirmed rather than assumed. A powersports size battery can work in a mower only when the tray, terminals and starting needs all line up.

The smaller body can be an advantage in tight spaces, but it also means less capacity than the ExpertPower and Interstate options. Owners should not expect a compact unit to match the stored power of a larger battery.

The package includes the battery and screws, with no wire harness or mounting accessories. Existing hardware must therefore fit the bolt terminal and hold the battery firmly against movement.

Sealed AGM construction helps with spill resistance and low upkeep, which suits equipment that may tilt or vibrate. Still, the battery should be mounted securely and kept clean at the terminals.

Choose it for a compact battery compartment that specifically accepts YTZ14S dimensions and terminals.

4

Westcap Power Equipment Honda 12V 2.8Ah Sealed Lead: Best for select Honda electric-start mowers

9.3/10Our score

• 12V
• 2.8Ah sealed lead acid
• AGM design
• F1/F2 terminal compatibility
• Honda HRN, HRR and HRX fit

This compact AGM replacement is designed for select Honda electric-start lawn mowers, including listed HRN216, HRR216K9/K10/K11 and HRX217K5/K6 models. Its small size and F1/F2 terminal compatibility are the key fit points.

See it on Amazon

Pros

• Honda model-specific fit
• Compact body
• Maintenance-free AGM design

Cons

• Only 2.8Ah capacity
• Not a universal riding mower battery

Westcap's Honda replacement is made for select electric start Honda lawn mowers, including HRN216, HRR216K9/K10/K11 and HRX217K5/K6 series. It uses a 12V, 2.8Ah sealed AGM design in a compact 4.02 x 1.89 x 2.58 in body.

The small size makes it a practical choice for walk behind mowers where space is limited. At about 2 pounds, it is also light enough to handle easily during seasonal storage and tray checks.

The F2 terminal is 0.250 in wide, with F1 adapter compatibility. That terminal detail matters because a small battery can still fail to connect if the mower uses another arrangement or a cable that cannot sit flat.

This is a model specific replacement, not a general substitute for a riding mower U1 battery. The limited capacity also means it should be matched to the original Honda part rather than chosen for extra power.

Check the mower model and original part number before choosing it, especially the listed Honda numbers for HRN, HRR and HRX machines. A direct match reduces the risk of size or connector problems.

Maintenance free AGM construction keeps ownership simple, with no routine water filling needed. Clean terminals and a snug fit in the small tray will help the electric start work consistently.

Pick it for a listed Honda electric start fit where the compact dimensions and F1/F2 connection match.

5

12V 13AH Battery: Best for Ariens and Gravely replacements

8.9/10Our score

• 12V
• 13Ah
• AGM VRLA
• Nut and bolt terminals
• 5.94 x 3.86 x 3.66 in

This 13Ah AGM battery targets lawn and garden replacements using large nut and bolt terminals. It directly replaces listed Ariens, Gravely and Briggs & Stratton battery numbers, subject to a model and terminal check.

See it on Amazon

Pros

• 13Ah capacity
• AGM maintenance-free design
• Nut and bolt terminals

Cons

• Compatibility centers on listed replacement numbers
• No CCA figure in the supplied product data

Battery Source's 12V 13Ah battery uses AGM VRLA construction and nut and bolt terminals. It measures 5.94 x 3.86 x 3.66 in and is designed to replace listed Ariens, Gravely and Briggs & Stratton 12V 13Ah battery numbers.

The 13Ah capacity sits between the smaller YTZ14S batteries and the larger ExpertPower and Interstate choices. That middle position can suit lawn and garden equipment that needs more stored capacity than a compact powersports unit.

AGM construction keeps the battery maintenance free for normal use, with sealed construction that resists spills. Nut and bolt terminals also give a secure connection when they match the mower cables and hardware.

Its strongest point is replacement number matching for Ariens and Gravely models. If your mower uses a different battery size or terminal style, the capacity alone does not make it a safe substitute.

The included warranty coverage adds some peace of mind, but fit remains the main decision. Measure the tray, check the terminal position and confirm the original battery number before ordering.

Setup should be simple when the match is correct, since no water topping is required. Keep the battery secured and the terminals tight so vibration does not loosen the connection over time.

Choose it for Ariens or Gravely mower replacements when the original battery number, dimensions and nut and bolt terminals match.

6

Energizer EN-U1-350-GEL: Best for highest stated cranking output

8.7/10Our score

• 12V
• 350 CCA
• GEL technology
• Nut and bolt terminals
• 7.74 x 5.13 x 6.92 in

Energizer gives this 12V battery a stated 350 CCA, the highest cranking figure in this group. Its U1-style dimensions and nut and bolt terminals make tray and connector checks essential.

See it on Amazon

Pros

• 350 CCA
• GEL technology
• Flexible mounting position

Cons

• No wire harness or mounting accessories
• Larger body than compact YTZ14S options

The Energizer EN-U1-350-GEL has the highest stated cranking output here at 350 CCA. It is a 12V sealed lead acid battery with GEL technology, nut and bolt terminals and dimensions of 7.74 x 5.13 x 6.92 in.

That CCA figure may suit owners whose mower needs strong starting power, especially after storage or in cooler weather. Published cranking output is easier to compare than capacity alone, although fit must still come first.

Energizer describes it as usable in any position except upside down. The battery is intended for tractors, lawn mowers and other equipment, but the mower tray and connector still need to match the stated size and terminal type.

The GEL design is described as supporting deep cycle performance and longer cycle life than standard options. That can be useful for equipment that charges and discharges repeatedly, rather than only starting an engine.

The package includes the battery only. It does not include a wire harness or mounting accessories, so check whether your existing hardware can secure it and connect the nut and bolt terminals properly.

Quality construction is another focus, with resistance to vibration and shock for outdoor use. A secure tray fit remains important, since movement can damage cables and reduce connection quality.

Pick it for the highest stated CCA when its U1 style dimensions and nut and bolt connection fit your mower.

7

UPLUS YTZ14S Motorcycle AGM Replacement Battery Maintenance: Best for listed Cub Cadet fits

8.5/10Our score

• 12V
• 11.2Ah
• 210 CCA
• YTZ14S size
• PP material

This YTZ14S AGM battery is aimed at listed Cub Cadet XT and ZTX mower models and provides 210 CCA. Its compact body and stated PP construction suit buyers matching a specific tray and replacement number.

See it on Amazon

Pros

• Listed Cub Cadet compatibility
• 210 CCA
• Maintenance-free AGM design

Cons

• Vehicle-specific fit
• Lower CCA than the other high-output picks

UPLUS's YTZ14S replacement provides 12V, 11.2Ah capacity and 210 CCA in a compact AGM body. Listed models include Cub Cadet; see more Cub Cadet mower battery replacements for additional fit options.

It measures 5.91 x 3.46 x 4.33 in and uses PP material, described as more heat resistant than traditional ABS. That may suit equipment running warm under a hood or cover.

Listed matches include several Cub Cadet XT1 and ZTX models, and it replaces 725P17335 and 725-17335. Those details make it a targeted replacement, not a universal battery.

Maintenance free sealed AGM construction needs no acid or water and helps resist spills. That is useful in a compact compartment where leaks could be hard to clean.

Confirm polarity, tray size and original part number before ordering, since YTZ14S is not a U1 battery. Its 210 CCA is lower than the larger U1 picks, so starting needs should be checked carefully.

Choose it for listed Cub Cadet fits using YTZ14S size and the 210 CCA range. Others should seek a battery built around their tray size.

8

CUB CADET 490-280-F016 Battery AGM 7AHR CC: Best for Cub Cadet CC30H owners

8.2/10Our score

• AGM battery
• 7Ah
• OEM part 490-280-F016
• Fits CC30H Hydro Mini Rider

This genuine Cub Cadet AGM battery is matched to the CC30H Hydro Mini Rider and replaces listed prior part numbers. It makes sense when the original equipment part number and mower model match.

See it on Amazon

Pros

• OEM Cub Cadet part
• 7Ah capacity
• Specific CC30H fit

Cons

• Narrow model compatibility
• No CCA figure in the supplied product data

The CUB CADET 490-280-F016 is a genuine AGM replacement for the CC30H Hydro Mini Rider. It replaces prior part numbers 725P17136, 725-17136 and 490-280-Y016, with a stated 7Ah capacity.

This battery makes the most sense when your mower manual or original battery shows one of those part numbers. Cub Cadet recommends checking the original equipment owner's manual to verify compatibility before purchase.

Its model specific design is its main advantage, while its narrow fit limits use outside the listed CC30H mower. Owners of other Cub Cadet tractors should not assume this battery will fit their tray or connector.

The supplied product data does not state a CCA figure, so part number matching matters more than comparing cranking numbers. A genuine part can still be the wrong choice if the model code on your mower does not match.

At 6.5 pounds, the battery is manageable to lift and install in a mini rider. Secure mounting and correct polarity remain important, even with a direct factory replacement.

AGM construction supports sealed, maintenance free use for normal mower ownership. That means no routine water filling, but terminals should still be kept clean and tight.

Choose it for Cub Cadet CC30H owners who need the matching OEM battery part.

9

Interstate Batteries SLA Battery 12V 35Ah AGM: Best for larger capacity needs

8.0/10Our score

• 12V
• 35Ah
• AGM VRLA
• Flag terminal
• 7.76 x 5.16 x 6.26 in

The 35Ah capacity is the largest in this group, but its flag terminal and 22.1 lb weight make fit more important than capacity alone. Interstate also identifies lawn mowers among its replacement uses.

See it on Amazon

Pros

• 35Ah capacity
• AGM and VRLA design
• Rechargeable

Cons

• Heaviest option here
• Flag terminal may not match a mower harness

Interstate's SLA1155 offers 35Ah capacity, the largest rating in this comparison. It is a 12V rechargeable AGM VRLA battery with a flag terminal and dimensions of 7.76 x 5.16 x 6.26 in.

The battery weighs 22.1 lb, making it much heavier than the compact mower and motorcycle style options. That weight can be a practical issue during installation, especially in a low or awkward battery compartment.

Interstate identifies lawn mowers, UPS backup power, emergency lighting, solar power and medical devices among its replacement uses. This broad range shows flexibility, but mower fit still depends on tray size and the flag terminal connection.

The flag terminal is the key connection detail. A high amp hour rating cannot compensate for a terminal that does not match the mower harness or adapter, and forcing a connection can create a weak joint.

Sealed AGM and VRLA construction helps prevent spills and reduces routine upkeep. The battery is rechargeable and maintenance free, which suits equipment that may sit unused between periods of regular work.

Owners should check the hold down hardware as well, since a heavy battery needs to stay still during vibration. A loose fit can damage terminals and lead to unreliable starting over time.

Pick it for larger capacity needs when your mower accepts the flag terminal, dimensions and added weight.

What should you check before buying an AGM mower battery?

Check voltage, dimensions, polarity, terminals and the mower's required starting output before choosing an AGM battery. Match the replacement to the original battery or the mower manual, not just to a similar product name.

How do you match lawn mower battery size?

Measure the battery tray's length, width and height, then compare those measurements with the replacement. Leave room for the cables and any hold-down hardware, and confirm the battery can sit securely without pressing against the hood or nearby components.

The U1-style Mighty Max ML-U1-CCAHR and Energizer EN-U1-350-GEL are much larger than the YTZ14S batteries. The Honda replacement is smaller still, so these groups should not be treated as interchangeable.

Why do CCA and amp-hours mean different things?

CCA describes starting output, while amp-hours describe stored capacity. A mower that needs strong engine cranking may benefit from a battery with a clearly stated CCA rating, but the battery must still fit and connect correctly.

The Energizer lists 350 CCA, the Mighty Max U1 lists 320 CCA, and the Mighty Max YTZ14S lists 230 CCA. ExpertPower lists 20Ah, while Interstate lists 35Ah, but neither product data set gives a CCA figure here.

Which AGM terminals should you match?

Match the terminal style and polarity exactly. The products here use NB, bolt, nut and bolt, flag, or F1/F2 terminal arrangements, and those connections are not automatically interchangeable.

A battery can have the right voltage and still be unusable if the cable ends cannot attach securely. If you need installation guidance, read How to Change a Riding Mower Battery? before removing the old battery.

Does sealed AGM mean no care is needed?

Sealed AGM batteries do not need routine water filling, but they still need sensible care. Keep the terminals clean, secure the battery against movement and use the mower's charging system as intended.

Avoid storing a mower with a deeply discharged battery. Follow the battery and mower instructions for charging, and disconnect or maintain the battery according to those instructions when the mower sits unused.

How do you install and maintain an AGM lawn mower battery?

Install the battery with the correct polarity, secure it in the tray and connect the terminals firmly without forcing a mismatched cable. After installation, check that the mower starts normally and that the battery remains stable when the mower moves.

Before removing the old battery, photograph the cable positions and identify the positive and negative terminals. Disconnect the negative cable first, then the positive cable.

Reverse that order when installing the replacement, unless your mower manual states another procedure.

Do not turn a YTZ14S, Honda compact battery or model-specific Cub Cadet battery into a U1 replacement by forcing it into the tray. A correct voltage is only one part of a safe match.

For general mower use questions, see How To Use Lawn Mower 2.0?. The guide is separate from battery selection, but it can help you keep the mower's operating routine clear.

What is the best lawn mower battery AGM for your mower?

Choose the Mighty Max ML-U1-CCAHR when your riding mower accepts a U1 battery and you want a strong 320 CCA starting figure. Its mower focused compatibility makes it a sensible first check for many larger machines.

Choose Energizer EN-U1-350-GEL when its 350 CCA and nut and bolt terminals match your mower. Choose ExpertPower EXP12200 for 20Ah capacity in a compact sealed body, noting it has no stated CCA figure.

Choose Interstate SLA1155 for 35Ah capacity when the mower accepts a flag terminal and added weight. Choose the compact Mighty Max YTZ14S for a tray built around that size and bolt terminal layout, not as an automatic U1 swap.

Honda, UPLUS and CUB CADET work best when the mower model or replacement number matches directly. The original part number is often the fastest way to confirm fit.

Before ordering, compare voltage, length, width, height, polarity and terminal style with the old battery. Leave room for cables and hold down hardware, and ensure the unit will not press against the hood.

Storage, charging and temperature can affect battery life, so keep terminals clean and mounting secure. The best pick matches voltage, tray, polarity, terminals and starting requirement at the same time.

Our top 3 picks at a glance

1. 1
   Best for higher battery capacity

   ExpertPower EXP12200 12V 20Ah

   9.7/10 our score

   See it on Amazon
2. 2
   Best for most riding mower starts

   Mighty Max Battery ML-U1-CCAHR -12 Volt

   9.6/10 our score

   See it on Amazon
3. 3
   Best for compact battery spaces

   Mighty Max Battery YTZ14S -12 Volt 11.2

   9.4/10 our score

   See it on Amazon

Frequently asked questions

What is the best lawn mower battery AGM for most riding mowers?

The Mighty Max ML-U1-CCAHR is the best lawn mower battery AGM for most riding mowers in this comparison because it combines 12V power, 320 CCA, U1-style mower compatibility and NB terminals. Confirm the tray dimensions, polarity and terminal connection before ordering.

Is AGM better than a flooded lawn mower battery?

AGM batteries use absorbed glass mat construction and are sealed, spill-resistant and maintenance-free in the products compared here. That can simplify mower care.

AGM is still only a good replacement when its voltage, dimensions, polarity, terminals and required starting output match the mower.

How many CCA does a lawn mower battery need?

Use the mower manual or the original battery as your starting point because the required CCA varies by engine and electrical system. In this guide, the stated outputs range from 210 CCA to 350 CCA.

More CCA does not make an incorrectly sized battery fit.

Can you use a motorcycle AGM battery in a lawn mower?

You can use a motorcycle-style AGM battery only when the mower accepts the same voltage, dimensions, polarity, terminal type and starting requirements. The YTZ14S options here are compact, but they are not automatic replacements for U1 batteries or model-specific mower batteries.

How long do AGM lawn mower batteries last?

AGM battery life depends on charging, storage, temperature and discharge depth. Keep the mower's charging system in good condition, avoid leaving the battery deeply discharged and store it according to the battery instructions.

Read our guide to How Long Do Lawn Mower Batteries Last? for broader care guidance.