Keeping your lawn looking neat should not involve the frustration of tangled cords, gas fumes, or equipment that quits mid-job.
For those who use 24V electric lawn mowers, the primary goal is finding a durable, high-performance battery that provides sustained power output and won’t die prematurely.
A low-capacity or weak battery can severely reduce cutting efficiency and time, leading to frustrating mowing sessions.
Our focus is on high amp-hour rated, lithium-ion 24V batteries featuring thermal protection and a long cycle life to ensure reliable performance. Upgrading to a dependable battery can revolutionize your yard care routine, delivering power season after season.
1. Greenworks 24V 4.0Ah Genuine Battery (Best Overall)
This Greenworks 24V 4.0Ah battery is the cornerstone choice for reliability, offering fade-free performance and seamless compatibility across the brand’s 125+ tool ecosystem.
As a genuine OEM (Original Equipment Manufacturer) product, it is built with Grade-A lithium-ion cells engineered to deliver consistent voltage from full charge to depletion, which is crucial for power-demanding tasks like mulching thick grass.
The battery features an onboard fuel gauge, eliminating the guesswork associated with planning yard work and preventing sudden mid-mow shutdowns.
While it is a 4.0Ah model, which is lower capacity than some competitors, it strikes a smart balance between weight and runtime, making it ideal for typical homeowner scenarios. It may require a second battery for extended use, but it offers unmatched compatibility and stability.
Key Features:
- 24V, 4.0Ah capacity.
- Genuine OEM Grade-A lithium-ion cells.
- Compatibility with 125+ tools.
- Onboard fuel indicator.
Pros:
- Fade-free power and stable torque.
- Strongest warranty support (3 years).
- Unmatched compatibility within the Greenworks 24V ecosystem.
Cons:
- Lower capacity compared to competitors.
- Premium pricing.
- Heavier than smaller models.
2. Futurebatt 2-Pack 8.0Ah 24V Battery (Best for Extended Runtime)
The Futurebatt 2-pack 8.0Ah 24V batteries are designed for users demanding extended runtime within the Greenworks ecosystem, offering double the capacity of standard 4.0Ah models.
These high-density lithium-ion packs can deliver up to 90 minutes of continuous mowing on a single charge, which is perfect for larger yards or multi-tool days.
A critical safety addition is the smart ECP (Electronic Circuit Protection) system, which actively prevents common third-party battery issues such as short circuits, overheating, and overcharging.
In testing, this pair successfully handled a full 0.5-acre property across various tools without a drop in performance.
The built-in LED indicators provide accurate charge feedback. This 2-pack provides serious value for homeowners needing maximum runtime on a budget.
Key Features:
- 24V, 8.0Ah high capacity.
- 2-pack value.
- Smart ECP protection system.
- CE/FCC/RoHS certified.
Pros:
- Double the capacity of standard 4.0Ah models.
- Up to 90 minutes of continuous mowing.
- Equipped with LED power indicators.
- More runtime for less per battery compared to OEM.
Cons:
- Heavier than OEM.
- Relatively short warranty (12 months).
- Longer charge time (nearly 4 hours with a standard 2A charger).
3. Zpubnor 2-Pack 24V 8.0Ah Battery (Best Value 2-Pack)
For users prioritizing cycle life and longevity, the Zpubnor 2-pack 8.0Ah battery is a powerhouse featuring 1,200+ charge cycles—a substantial advantage for frequent use.
These batteries are constructed with Grade-A lithium cells, boasting 95% capacity retention over time.
The 8.0Ah capacity delivers roughly 90 minutes of runtime on a 21” mower, generally enough to cover most suburban lawns on one charge.
Safety is maintained through an advanced ECP chip that guards against short circuits, overvoltage, and overheating.
A 3-level LED monitor offers precise visibility of the remaining charge. This option offers professional-grade endurance in a budget-friendly bundle, providing more than double the capacity of the Greenworks original 4.0Ah.
Key Features:
- 24 Volt, 8.0Ah high capacity.
- Guaranteed 90-minute runtime.
- Exceptional longevity (1,200+ charge cycles).
- Advanced ECP chip protection.
Pros:
- Maintains 95% capacity retention over time.
- Delivers 55% longer runtime than standard 4.0Ah batteries.
- Excellent cycle durability for long-term use.
Cons:
- Bulky and heavy compared to smaller packs.
- No 3-year warranty.
- Long charging time.
4. Upgraded 6Ah 24V Battery 2-Pack (Best Budget Multi-Pack)
The Upgraded 6Ah 24V 2-pack achieves an ideal balance between affordability and runtime, providing 50% more capacity than standard 4.0Ah Greenworks batteries.
With 144Wh of energy output per unit, these packs are well-suited for medium-sized lawns and extended trimming sessions.
A notable feature is the inclusion of a USB port, offering unexpected utility for charging phones or trimmer batteries on the go, making it a functional upgrade beyond typical lawn care.
The high-cycle lithium cells provide consistent power without voltage sag, and the 2-pack provides better value than purchasing two single batteries separately.
This is a no-brainer upgrade for budget-conscious users seeking solid performance and smart features.
Key Features:
- 24V, 6Ah capacity.
- 2-pack value.
- Features a USB charging port.
- Rated for 1000 charge cycles.
Pros:
- Sweet spot between runtime and affordability.
- Significantly longer runtime than the Greenworks 4.0Ah.
- Useful LED indicator for fuel monitoring.
Cons:
- USB port output is low (best for emergency top-ups).
- Slightly bulkier than OEM models.
- Limited 12-month warranty.
5. MAFACBAC 24V 6.0Ah Single Battery (Best Budget Single)
This MAFACBAC 6.0Ah 24V replacement is a budget-friendly single battery option, delivering solid value and core performance.
It provides 50% more runtime than standard 4.0Ah Greenworks batteries, making it an excellent, reliable backup for homeowners with medium-sized yards who wish to avoid overspending.
Its 24V MAX lithium-ion design ensures full compatibility with various Greenworks tools, maintaining stable power without connection issues or voltage drops.
Although it lacks premium features like USB ports or advanced monitoring, it effectively delivers dependable power at a fraction of the OEM cost. This battery is ideal as a first-time replacement for users who need one reliable pack to extend their mowing window.
Key Features:
- 24 Volt, 6.0Ah capacity.
- Lithium-ion Battery.
- Full compatibility with Greenworks 24V models (29842, 29852, LB24A020).
- FCC, RoHS, and CE certified.
Pros:
- Affordable single battery solution.
- 50% more runtime than the standard 4.0Ah models.
- Practical, no-frills solution that outperforms its price tag.
- Comes with a 12-month warranty.
Cons:
- No onboard fuel indicator (risks mid-job shutdowns).
- No USB port feature.
- Shorter warranty than OEM.
6. Zpubnor 24V 4.0Ah Replacement Battery (Best Affordable Compatible)
The Zpubnor 24V 4.0Ah replacement is a budget-savvy alternative that delivers identical capacity to the genuine Greenworks battery at a significantly reduced price.
It’s built with Grade-A lithium cells and includes a 3-level LED power display, offering real-time visibility into the remaining charge and eliminating the anxiety of sudden shutdowns.
The 90-minute runtime matches Greenworks’ claims for a 4.0Ah battery, and the memory-free charging allows for partial top-ups without degrading the lifespan.
Safety is paramount, with an advanced ECP chip safeguarding against short circuits and over-discharge. While the warranty is only 12 months, the strong long-term durability is suggested by its 1,200+ charge cycles.
Key Features:
- 24 Volt, 4.0Ah capacity (OEM-equivalent).
- 3-level LED power indicator.
- Advanced ECP protection chip.
- High longevity (1,200+ charge cycles).
Pros:
- Same capacity and performance as the OEM battery at a steep discount.
- Eliminates guesswork with the LED gauge.
- Memory-free charging.
- Budget-savvy price point.
Cons:
- Lighter build quality compared to the Greenworks casing.
- No 3-year warranty.
- Single pack only.
7. Marxon U1 320CCA Riding Mower Battery (Best for Riding Mowers)
For those operating traditional riding mowers or garden tractors, the Marxon U1 AGM battery provides a heavy-duty, maintenance-free solution.
Engineered with 320 Cold Cranking Amps (CCA) and a 12V SLA design, it ensures reliable engine starts, even during cooler temperatures.
The battery features a patented alloy construction and shockproof casing, enhancing durability by resisting vibration damage and acid leaks commonly encountered on rough terrain.
As a maintenance-free AGM battery, there is no need to check water levels or add acid, providing set-and-forget reliability.
It fits standard U1 trays and is purpose-built for engine cranking, not for powering cordless tools. It stands out with US-based customer support and a 15-month warranty.
Key Features:
- 12V, 320 CCA (Cold Cranking Amps).
- Maintenance-free AGM (Sealed Lead Acid) technology.
- Standard U1 dimensions (7.68″ x 4.92″ x 6.14″).
- Positive terminal on the left.
Pros:
- Delivers reliable starts for powerful engines.
- Shockproof casing increases durability against vibration.
- 15-month warranty and US customer support.
Cons:
- Heavy lead-acid type.
- Bulky compared to lithium alternatives.
- Not for use with cordless lawn tools.
Details Buying Guide: Choosing the Right 24V Battery for Your Lawn Mower
Selecting the appropriate 24V battery can significantly influence your entire mowing experience.
Focus on these key features to ensure you choose the best option for your specific needs:
Capacity (Ah – Amp Hours)
The Amp-hour (Ah) rating is arguably the most crucial factor, as it determines the total runtime of your mower on a single charge; higher Ah means longer runtime.
- 4.0Ah: Best suited for small lawns, typically under 1/4 acre, providing a balance of weight and runtime.
- 6.0Ah: A valuable step up for medium-sized lawns (between 1/4 and 1/2 acre) or for tackling slightly tougher grass conditions.
- 8.0Ah: Ideal for maximizing runtime on larger lawns, exceeding 1/2 acre, or for users who want to minimize charging interruptions, though it adds more weight.
- Tip: Running a battery completely dry frequently can shorten its overall lifespan.
Compatibility
Since many of the top 24V batteries are designed for the Greenworks platform, ensure that any battery you choose is specifically compatible with your lawn mower model.
While third-party batteries may function, verifying the model numbers listed in the product description is crucial to prevent poor performance or damage.
Build Quality & Safety Features
Lithium-ion batteries are sensitive to overcharging and extreme temperatures. Look for batteries that integrate built-in protection features to ensure safe and reliable operation:
- Overcharge Protection: Essential for preventing damage caused by excessive charging.
- Overheat Protection: Safeguards both the tool and the battery from high temperatures.
- Short-Circuit Protection: Protects against electrical faults.
- LED Power Indicator: A highly useful feature that allows you to check the remaining charge level quickly, reducing the risk of unexpected shutdowns.
- Cell Quality: Batteries built with robust casing and quality lithium cells tend to perform more reliably and last longer.
Warranty & Value
A strong warranty offers peace of mind. Most reliable brands provide at least a 1-year warranty, although genuine OEM batteries (like Greenworks) often offer up to 3 years.
- Single vs. Multi-Pack: For larger lawns, a multi-pack is a smart investment as a second battery allows for continuous operation while the first is charging, saving significant time.
- Price Assessment: Balance the upfront price against the capacity and features. Calculating the price per Amp-hour (Ah) is a useful metric for determining long-term value. Investing in a high-quality battery, even if initially more expensive, often saves money over time.
- Ecosystem: Consider the entire 24V battery ecosystem, such as Greenworks’ compatibility matrix, which shows how batteries operate across various tools.
By carefully evaluating your mowing habits and lawn size, you can select a 24V battery that delivers the necessary runtime and performance without excessive worry or unnecessary expense.