Finding the right replacement battery for your Ryobi 40V lawn mower can make all the difference in performance and runtime.
With so many options available, from OEM batteries to high-capacity third-party alternatives, choosing the best one can feel overwhelming.
In this guide, we’ll break down the top Ryobi 40V replacement batteries, highlighting their power, compatibility, and value.
Whether you need longer mowing sessions or a budget-friendly option, this post will help you make an informed decision and keep your mower running strong season after season. Let’s dive into the best batteries on the market today!
1. Upgrade 6000mAh Replacement for Ryobi 40V Battery
The Cailingbat Replacement Battery (Model OP4050A) is a 40V 5.0Ah lithium-ion battery compatible with Ryobi 40-Volt tools, including lawn mowers, blowers, chainsaws, trimmers, and more. It offers extended runtime compared to standard batteries, delivering fade-free power for consistent performance during use.
The battery features an onboard fuel gauge to easily check remaining charge and over-molded edges for enhanced impact protection. It charges in approximately 50 minutes and is designed to withstand rigorous outdoor use.
This battery is an ideal replacement or spare for users needing longer run times for their Ryobi cordless tools. It comes with a 3-year limited warranty.
Best for: Ryobi 40V tool owners who need a high-capacity, reliable replacement or additional battery to extend cordless tool runtime for yard and garden tasks.
Pros:
- Compatible with all Ryobi 40V tools and chargers
- High capacity 5.0Ah for extended runtime
- Fade-free lithium-ion power for consistent performance
- Onboard battery life indicator for easy monitoring
- Durable design with impact protection
- Relatively fast charge time (~50 minutes)
- Backed by a 3-year warranty
Cons:
- Higher price point compared to lower-capacity batteries
- Battery weight may be heavier than smaller capacity models
- Requires proper care to maintain battery life and performance
2. Fhybat 1 Pack 6ah Lithium ion Replacement for Ryobi 40V Battery
The Fhybat 6.0Ah Lithium-Ion Replacement Battery (Model OP40601) is a high-capacity, 40V battery compatible with Ryobi 40V tools such as lawn mowers, blowers, trimmers, and chainsaws.
It features premium-grade Class A+ lithium-ion cells from top manufacturers like Samsung, Panasonic, and LG, ensuring reliable power and long-lasting performance.
The battery includes advanced smart circuit protection for overcharge, over-discharge, overheat, short circuit, and voltage regulation, enhancing safety and durability.
With a 6.0Ah capacity, it offers significantly longer runtime compared to standard 5.0Ah batteries, making it ideal for extended outdoor tasks.
It is 100% compatible with original Ryobi chargers and tools, meeting or exceeding OEM specifications.
The battery is backed by certifications such as CE, UL, and RoHS and typically comes with a 12-month warranty.
Best for: Ryobi 40V tool users who need a reliable, long-lasting replacement or spare battery with extended runtime for demanding yard and garden work.
Pros:
- High capacity 6.0Ah for longer runtime
- Compatible with a wide range of Ryobi 40V tools and chargers
- Built with premium lithium-ion cells for durability and performance
- Multiple intelligent protections for safety and battery health
- Meets or exceeds original manufacturer specifications
- Certified for safety and quality (CE, UL, RoHS)
- 12-month warranty included
Cons:
- Slightly heavier than lower-capacity batteries
- Higher price compared to standard 5.0Ah batteries
- Requires proper charging and storage to maximize lifespan
3. Ryobi 40V Volt Lithium-ion 6.0 Ah High Capacity Battery Op40602
The Ryobi 40V 6.0 Ah High Capacity Lithium-Ion Battery (Model OP40602) is designed to deliver extended runtime and fade-free power for Ryobi 40V cordless tools.
It offers up to three times longer runtime compared to the standard 2.0 Ah Ryobi 40V compact battery, making it ideal for large yards or demanding outdoor tasks.
The battery features an onboard fuel gauge with a 3-LED display to easily monitor remaining charge. It incorporates advanced charging technology that protects the battery and extends its life.
Compatible with most Ryobi 40V tools and chargers, this battery comes with a 3-year limited warranty. The package often includes a rapid charger capable of charging the battery in about 60 minutes.
Best for: Ryobi 40V tool users who need longer run times and reliable power for extended outdoor projects like lawn mowing, trimming, and blowing.
Pros:
- High capacity 6.0 Ah for extended runtime (up to 3X longer than 2.0 Ah battery)
- Fade-free lithium-ion power for consistent performance
- Onboard 3-LED fuel gauge for easy charge monitoring
- Advanced charging technology for battery protection and longevity
- Compatible with a wide range of Ryobi 40V tools and chargers
- Rapid charging capability (around 60 minutes)
- Backed by a 3-year limited warranty
Cons:
- Larger and heavier than lower-capacity batteries
- Higher price point compared to standard batteries
- Requires compatible charger for rapid charging benefits
4. ANTRobut 6.5Ah Replacement Ryobi 40V Battery
The ANTRobut 40V 6.0Ah Lithium-Ion Replacement Battery is a high-capacity power source compatible with Ryobi 40V cordless tools, including models OP4050A, OP4015, OP4026, and others.
It offers extended runtime with a 6000mAh (6.0Ah) capacity, providing longer usage between charges compared to standard batteries.
Designed with quality lithium-ion cells, it delivers fade-free power for consistent performance during demanding outdoor tasks.
The battery features over-molded edges for impact protection and an onboard fuel gauge to easily monitor remaining charge. It is a direct replacement for Ryobi 40V batteries and compatible with all Ryobi 40V chargers.
This battery is ideal for users needing reliable and longer-lasting power for lawn mowers, blowers, trimmers, and other cordless tools.
Best for: Ryobi 40V tool owners seeking a durable, high-capacity replacement or spare battery to extend runtime for yard and garden equipment.
Pros:
- High capacity 6.0Ah for extended runtime
- Compatible with multiple Ryobi 40V battery models and chargers
- Fade-free lithium-ion power ensures consistent performance
- Onboard battery life indicator for convenient charge monitoring
- Durable design with impact protection
- Cost-effective alternative to OEM batteries
Cons:
- Slightly heavier than lower-capacity batteries
- Requires proper charging and care to maintain longevity
- May have variable performance depending on tool and usage conditions
5. Kekepowtobat Compatible with Ryobi 40V 6.0Ah High-Output Battery
The Compatible High Output Battery OP4050A is a 40V 5.0Ah lithium-ion replacement battery designed for Ryobi 40V cordless tools, including models OP4050A, OP4015, OP4026, OP4060, and others.
It features high-quality Class A+ lithium-ion cells sourced from reputable manufacturers like Samsung, Panasonic, and LG, ensuring reliable, long-lasting power and fade-free performance.
The battery includes smart circuit protection for overcharge, over-discharge, short circuit, overload, and temperature control, enhancing safety and durability.
It is fully compatible with Ryobi 40V chargers and tools, matching or exceeding the original battery’s performance.
Typical runtime ranges from 3 to 4 hours depending on usage. The battery also has an onboard fuel gauge for easy charge monitoring and comes with a 12-month warranty.
Best for: Ryobi 40V tool users who need a dependable, high-quality replacement or spare battery with solid runtime for lawn mowers, blowers, trimmers, and other outdoor power tools.
Pros:
- High-quality lithium-ion cells from top manufacturers
- 5.0Ah capacity for extended runtime
- Multiple safety protections (overcharge, short circuit, etc.)
- Compatible with a wide range of Ryobi 40V tools and chargers
- Onboard fuel gauge for easy battery monitoring
- 12-month warranty included
Cons:
- Runtime depends on tool and usage conditions
- Slightly heavier than lower-capacity batteries
- Requires proper charging and storage to maximize lifespan
6. OP4060 40V 6000mAh Lithium Battery Replacement for All Ryobi
The Ryobi 18V Lithium-Ion Replacement Battery (Model P108) is a high-capacity battery designed for Ryobi 18V ONE+ tools.
It features a 4,000mAh (4.0Ah) capacity and delivers 72Wh of energy, providing significantly longer runtime compared to lower-capacity Ryobi batteries.
The battery uses lithium-ion 18650 cells arranged in a 5S2P configuration, ensuring reliable, fade-free power for a variety of cordless tools including drills, saws, and garden equipment.
Weighing approximately 1 lb 9.2 oz (720g), it balances capacity and portability. This battery is compatible with all Ryobi 18V ONE+ chargers and tools, making it a versatile choice for expanding runtime without upgrading the entire tool system.
Best for: Ryobi 18V ONE+ tool users who need extended runtime for demanding tasks such as drilling, cutting, or yard work.
Pros:
- High capacity 4.0Ah for longer runtime
- Compatible with all Ryobi 18V ONE+ tools and chargers
- Uses reliable lithium-ion 18650 cells
- Fade-free power output for consistent tool performance
- Lightweight and portable
Cons:
- Larger and heavier than lower-capacity batteries
- Requires compatible charger for optimal charging
- Higher cost than standard capacity batteries
7. Moticett Replacement for Ryobi 40V Battery
The Moticett Upgraded Replacement Battery is a high-capacity lithium-ion battery compatible with Ryobi 40V cordless tools, specifically models OP4026, OP40261, OP4050A, OP40601, and others.
It offers a 7,000mAh (7.0Ah) capacity, providing longer runtime than standard 3.0Ah or 6.0Ah batteries, making it ideal for extended use in lawn mowers, blowers, trimmers, and similar equipment.
The battery features built-in multiple protections against overcurrent, short circuit, overheating, and overvoltage to ensure safety and durability.
It includes an LED indicator to easily check the battery level. The battery is made with high-quality lithium-ion cells and robust materials for strength and longevity. It is compatible with original Ryobi 36V/40V chargers and tools.
Best for: Ryobi 40V tool users who need a reliable, longer-lasting replacement battery with enhanced safety features for heavy-duty outdoor work.
Pros:
- High capacity 7.0Ah for extended runtime
- Compatible with a wide range of Ryobi 36V/40V tools and chargers
- Multiple safety protections built-in
- LED battery level indicator
- Durable construction with quality lithium-ion cells
- Cost-effective alternative to OEM batteries
Cons:
- Slightly heavier than lower-capacity batteries
- Requires proper charging and storage to maximize lifespan
- Shipping may take longer depending on seller location
8. MAFACBAC 6Ah 40V Lithium Battery
The MAFACBAC 6Ah 40V Lithium Battery is a high-capacity replacement battery compatible with Ryobi 40V tools, including models OP40401, OP40602, OP4026, OP40501, and OP40261.
It offers 6.0 amp-hours of fade-free lithium-ion power, providing up to three times more runtime than Ryobi’s standard 2.0Ah compact battery.
The battery features an onboard fuel gauge to display remaining runtime and is compatible with all Ryobi 40V chargers and tools.
It charges in 60 minutes or less when used with the Ryobi 40V Rapid Charger (sold separately). The battery is designed to deliver reliable performance for lawn mowers, blowers, trimmers, and other outdoor power equipment. It comes with a 3-year limited warranty.
Best for: Ryobi 40V tool users who need extended runtime and reliable power for demanding yard and garden tasks.
Pros:
- 6.0Ah capacity offers up to 3X longer runtime than 2.0Ah batteries
- Fade-free lithium-ion power ensures consistent performance
- Onboard fuel gauge for easy charge monitoring
- Compatible with all Ryobi 40V tools and chargers
- Charges quickly (60 minutes or less with rapid charger)
- Backed by a 3-year limited warranty
Cons:
- Rapid charger sold separately
- Slightly larger and heavier than lower-capacity batteries
- Performance depends on tool type and usage conditions
9. Biswaye 40V 6Ah Lithium Battery Replacement
The Biswaye 6000mAh 40V Lithium Replacement Battery is a high-capacity, compatible battery designed for Ryobi 40V cordless power tools, including models OP4040, OP40601, OP4026, OP40261, OP40401, OP40501, OP4015, OP40602, OP40404, and OP40603.
It delivers 6.0Ah capacity, providing extended runtime and fade-free power for lawn mowers, blowers, trimmers, and other outdoor equipment.
The battery features quality lithium-ion cells ensuring reliable performance and durability. It is fully compatible with Ryobi 40V chargers and tools, making it an effective and cost-efficient replacement option.
Users report it performs comparably to OEM batteries, offering a balance of power and value. The battery includes an onboard fuel gauge for easy monitoring of remaining charge.
Best for: Ryobi 40V tool owners who want a reliable, longer-lasting replacement battery with solid performance for demanding outdoor tasks.
Pros:
- 6.0Ah high capacity for extended runtime
- Compatible with a wide range of Ryobi 40V tools and chargers
- Fade-free lithium-ion power for consistent tool performance
- Onboard fuel gauge for convenient charge monitoring
- Cost-effective alternative to OEM batteries
- Positive user feedback on performance and reliability
Cons:
- Rapid charger may be sold separately
- Slightly heavier than lower-capacity batteries
- Requires proper charging and storage to maximize lifespan
10. DTK Replacement for Ryobi 40V Battery
The DTK Battery Replacement for Ryobi 40V is a high-capacity lithium-ion battery with ratings around 6.2Ah to 6.6Ah, compatible with a wide range of Ryobi 40V cordless tools including models OP4040, OP4026, OP4030, OP4050, and OP4060A.
It is designed to deliver extended runtime and fade-free power for lawn mowers, string trimmers, blowers, and other outdoor equipment. The battery fits all standard Ryobi 40V chargers and tools, making it a convenient replacement option.
Best For: Users seeking a more affordable replacement battery for Ryobi 40V tools who can accept somewhat reduced runtime and potentially shorter lifespan compared to OEM batteries.
Pros:
- Compatible with a wide range of Ryobi 40V tools and chargers
- Higher capacity (6.2–6.6Ah) for extended runtime compared to lower-capacity batteries
- More affordable alternative to genuine Ryobi batteries
- Lightweight and compact design
Cons:
- Shorter runtime and durability compared to genuine Ryobi batteries
- Mixed user reviews regarding longevity and reliability
- Potential quality control variability among third-party manufacturers
11. Ryobi PBP005 ONE+ 18V Lithium-Ion 4.0 Ah Battery
The Replacement Battery Compatible with Ryobi OP40401 is a 40V 4.0Ah lithium-ion battery designed as a direct replacement for Ryobi 40V cordless tools.
It provides reliable, fade-free power for a variety of outdoor equipment including lawn mowers, trimmers, blowers, and chainsaws. The battery is compatible with all Ryobi 40V chargers and tools, ensuring seamless integration.
It features high-quality lithium-ion cells for consistent performance and durability. The battery includes an onboard fuel gauge to easily monitor remaining charge.
This replacement option is ideal for users seeking a dependable, moderately high-capacity battery to extend tool runtime without purchasing OEM batteries.
Best for: Ryobi 40V tool owners needing a reliable 4.0Ah replacement battery for general outdoor power tool use.
Pros:
- 4.0Ah capacity offers solid runtime for everyday tasks
- Compatible with all Ryobi 40V tools and chargers
- Fade-free lithium-ion power for consistent performance
- Onboard fuel gauge for easy charge monitoring
- Cost-effective alternative to OEM batteries
Cons:
- Lower capacity than 5.0Ah or 6.0Ah batteries, so shorter runtime
- Requires proper charging and storage to maintain battery health
- May not be suitable for heavy-duty or extended use without spare batteries
12. Powerextra 6.5Ah 18V Battery
The Powerextra 40V 6.0Ah Lithium Replacement Battery is a high-capacity, compatible battery designed for Ryobi 40V cordless tools such as string trimmers, lawn mowers, blowers, and more.
It offers 6000mAh (6.0Ah) capacity, providing extended runtime and fade-free power for demanding outdoor tasks.
The battery features high-quality lithium-ion cells with built-in protections against overcharging, over-discharge, overcurrent, and short circuits to ensure safety and maximize battery life.
It includes an LED fuel gauge to easily monitor remaining charge. This battery is compatible with all Ryobi 40V tools and chargers, including models OP4050A, OP40601, OP4026A, OP4040, and OP4030.
Best for: Ryobi 40V tool users seeking a reliable, long-lasting replacement battery with extended runtime and safety features for yard and garden equipment.
Pros:
- 6.0Ah high capacity for longer runtime
- Compatible with a wide range of Ryobi 40V tools and chargers
- Fade-free lithium-ion power for consistent performance
- Built-in safety protections (overcharge, discharge, overcurrent, short circuit)
- LED fuel gauge for easy charge monitoring
- CE and RoHS certified for safety and stability
Cons:
- Rapid charger usually sold separately
- Slightly heavier than lower-capacity batteries
- Requires proper charging and care to maintain battery life