Comparison: Best Lithium Battery Chainsaw (Updated | Oct 14th)

When choosing the best lithium battery chainsaw, key factors like power, runtime, battery compatibility, and ergonomics play a pivotal role in performance and user satisfaction. This comparison evaluates top models to help you balance efficiency, portability, and value. Whether for occasional yard work or frequent use, understanding differences in motor output, bar length, and charging times ensures you select a tool tailored to your needs. Our analysis focuses on real-world usability, battery life, and durability, providing a neutral guide to make an informed decision without overpromising on performance.

Product Comparison: Best Lithium Battery Chainsaw

Long runtime

SOUSKY Mini Chainsaw Battery, 21V 4.0 Ah Lithium Battery with Electric Quantity Display, Include Charger Adapter, Suitable 4/6/8 in Mini Electric Chainsaw, Compatible Other Tools with Same Interface

SOUSKY Mini Chainsaw Battery, 21V 4.0 Ah Lithium Battery with Electric Quantity Display, Include Charger Adapter, Suitable 4/6/8 in Mini Electric Chainsaw, Compatible Other Tools with Same Interface

SOUSKY
  • 【Universal Chainsaw Battery Compatibility】The SOUSKY 21V lithium-ion battery is perfectly compatible with all SOUSKY cordless power tools, including mini chainsaws, electric drills, leaf blowers, lawn mowers, and more. It also works seamlessly with the SOUSKY 24V Mini Chainsaw—offering versatile power in a single battery pack.
  • 【Widely Compatible Replacement Battery】This 21V battery features a universal interface, making it a great replacement for damaged or worn-out batteries. It fits a wide range of cordless tools that share the same connector. Please confirm that your tool's bottom connector matches before purchase.
  • 【High-Capacity Battery for Extended Runtime】Equipped with a 4000mAh high-capacity cell, this battery delivers longer working time and eliminates tool runtime anxiety. It’s easy to install and remove, and includes a built-in LED power indicator for real-time battery level monitoring.
  • 【Durable, Safe, and Reliable】Engineered in-house by SOUSKY, this lithium-ion battery meets strict quality and safety standards. It includes built-in protection against overcurrent, overheating, overcharging, and high temperatures—ensuring safe and stable performance for all your cordless power tools.
  • 【Fast-Charging Adapter Included】Each battery pack includes a universal 100-240V AC adapter. Charge efficiently and get back to work quickly with this reliable charging solution.

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Budget pick

21V Rechargeable Lithium Ion Battery, Replacement Batteries for Mini Electric Chain Saw 4 Inch/ 6 Inch (1)

21V Rechargeable Lithium Ion Battery, Replacement Batteries for Mini Electric Chain Saw 4 Inch/ 6 Inch (1)

S7
  • 【Chainsaw Battery】 S7 21v lithium ion battery is widely compatible with all kinds of home power tool, such as, electric lawn mower, weed blower, electric pruning shears, electric chain saw, drill, leaf blower, small dust blowe, and so on
  • 【21 Volt Lithium Battery】Battery voltage: 21v, capacity: 2.0ah, type: Lithium-ion. 21v battery is suitable for different types of electric tools. It can provides 20-30 minutes of running time, and with this backup battery, allowing you to finish trimming, cutting, and blowing without constant interruptions for rechargin
  • 【High Quality Battery】S7 21 volt lithium-ion rechargeable battery is made of high-quality ABS and metal materials, which are sturdy and durable. This battery is equipped with overload protection, overheat protection & over-discharge protection
  • 【4-LED Intelligent Power Indicator】Never guess your battery's life again! 21V batteries is equipped with a 4-level LED indicator light, which displays the remaining battery level at a glance
  • This rechargeable 21V scie a chaine a batterie will be an ideal replacement for 4-inch/ 6-inch mini chainsaws. Its quick-charging design and lightweight build make it convenient for on-the-go use
  • 【Note】Please check if your original battery interface is consistent with S7 21v battery before purchase. If you are not completely satisfied with the product, please search for your order on Amazon and click on "Contact Seller" or "Get Order Help" to contact us

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Best value

Seesii Mini Chainsaw, 6-inch Mini Chainsaw Cordless, Handheld Electric Power Chain Saw with 2 Batteries, for Tree Trimming Wood Cutting, Best Gifts for Father, Dad, Husband, Men

Seesii Mini Chainsaw, 6-inch Mini Chainsaw Cordless, Handheld Electric Power Chain Saw with 2 Batteries, for Tree Trimming Wood Cutting, Best Gifts for Father, Dad, Husband, Men

Seesii
  • 【ONE HAND USE CHAINSAW】Our lightweight battery chainsaw, just 2.62 lbs, is perfect for one-handed use without fatigue. Easy for beginners, its cordless design ensures portability in small spaces
  • 【LARGE CAPACITY BATTERY PACK】Our mini cordless chainsaw comes with 2 Pack 2.0 batteries and a fast charger for extended usage. Equipped with self-overload and temperature protection, these rechargeable batteries ensure a longer lifespan
  • 【EASY to USE】The battery chainsaw comes fully assembled. Simply adjust tightness with the provided wrench. No separate chain installation needed, but monitor chain tension and watch our video for guidance
  • 【EFFICIENT CUTTING】Seesii's mini chainsaw, with its powerful motor and dual batteries, effortlessly slices through 5.91-inch logs in just 8 seconds. Perfect for wood cutting, pruning, and gardening, it offers unmatched portability and speed compared to traditional chainsaws
  • 【BEST GIFTS】This chainsaw is not only a practical tool but also a thoughtful gift for husbands or fathers, making it the perfect Father's Day present
  • 【EXCELLENT AFTER-SALES SERVICE】Our 24/7 friendly customer support ensures you're worry-free post-purchase. If you're unsatisfied with our SeeSii Mini Chainsaw 6-inch cordless or have any questions, reach out anytime. Our experts respond within 12 hours, dedicated to resolving your concerns for a confident purchase experience
  • 【FRIENDLY ACCESSORIES】Our package includes everything you need for daily maintenance: 2 batteries, 1 suitcase, 2 chains (one pre-installed), 2 chainsaw files, 1 oil bottle, 1 pair of gloves, 1 charger, 1 nut driver, and 1 screwdriver. With these essentials, you can start working right away without any extra cost or wasted time
  • Please note: Our guide guide plate colors are currently being upgraded, and black and white will be mixed. If you do not like this, please contact us promptly.

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Best overall

EGO POWER+ Chain Saw, 16” Battery Powered Chainsaw, Electric Cordless, Includes 56V 2.5Ah Battery and Charger – CS1611

EGO POWER+ Chain Saw, 16” Battery Powered Chainsaw, Electric Cordless, Includes 56V 2.5Ah Battery and Charger – CS1611

EGO Power+
  • 40CC gas equivalent
  • Up to 130 cuts on a 4×4 with the included 56V 2.5Ah ARC Lithium battery
  • 16-inch bar and chain
  • 20m/s chain speed
  • Tool-free chain tensioning system for quick, easy bar and chain adjustments
  • IPX4-rated weather-resistant construction
  • Low kickback chain design with brake indicator
  • Automatic oiling

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Fast charging

21V 1A Mini Chainsaw Battery Charger, Power Tools Lithium Battery Charger, Compatible with Aker/Saker/Seyvum/O-Conn Mini Chainsaw

21V 1A Mini Chainsaw Battery Charger, Power Tools Lithium Battery Charger, Compatible with Aker/Saker/Seyvum/O-Conn Mini Chainsaw

Mareisa
  • [ for Saker Mini Chainsaw Charger Compatible with: ] 21V 1A Battery Charger Compatible with Wireless car wash water gun battery charger Angle grinder charger Electric wrenches battery charger drill battery charger Mini Chainsaw Battery Charger Cordless Small Electric Portable Handheld Chainsaw Accessories.
  • [ 21Volt Lithium Battery Charger Appliance: ] 21V Charger Adaptable to most of the mini chainsaw lithium batteries on the market such as 20V, 21V. compatible with Aker mini chainsaw, Saker Mini Chainsaw, Seyvum mini chainsaw, O-CONN mini chainsaw, Dinishare mini chainsaw, Vtek mini chainsaw, SOYUS, Zikopomi, SENDRY, BEI & HONG, New Huing, RLSOO, Peektook, SeeSii, Taranzy, IMOUMLIVE, DONGYAN, POTENCO, NaTiddy Cordless Chainsaw etc.
  • [ for Aker Mini Chainsaw Charger Specification: ] 21V Mini Chainsaw Charger World Wide Input Voltage:100-240VAC 50/60Hz; Output: 21V 1A 21W. DC plug size: The DC output port specification of this adapter is 5.5*2.5mm compatible with 5.5*2.1mm (Inside diameter is positive "+", outer diameter is negative "-" ), which is not suitable for other specifications of the interface. Please confirm whether the DC interface of this Lithium Battery Power Supply matches the interface of your device before purchasing. If the two do not match, it will not work!!!
  • [ 21V Battery Charger :] 21V Chainsaw Lithium Battery power supply with 39 inch (1m) Power cord / Power cable has good bending resistance and ensures a long service life, American Standard. Portable charger provide convenience for charging Power tools on different occasion. 21V Power Tool Charger with Indicator: Solid green light when the battery is fully charged, red light when the charger is charging. Avoid water ingress, For outdoor use, take care to prevent water from entering the charger power supply.
  • [ Protection and Composition : ] 21V Lithium Battery Power Cord Certified by: UL, FCC, ETL, Rohs certified. with Over Voltage Protection / Over current Protection / Short circuit protection / Over charge protection. Made by PC and ABS shell-retardant plastic. No noise, no fire hazard.

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Brand compatible

Biswaye LBXR20 20V Lithium Battery Compatible with Black & Decker 20V MAX Lithium Battery LBXR2520 LBXR2020 LBX20 LB2X4020 LB2X3020 and LCC221 LST522 LST201 LST220 LST300 20V Max Tools

Biswaye LBXR20 20V Lithium Battery Compatible with Black & Decker 20V MAX Lithium Battery LBXR2520 LBXR2020 LBX20 LB2X4020 LB2X3020 and LCC221 LST522 LST201 LST220 LST300 20V Max Tools

Biswaye
  • All Compatible: 4.0 Ah 20V li-ion battery replacement for Black and Decker 20V lithium battery LBXR20, LB20, LBX20, LBX4020, LB2X4020, LBXR20-OPE, LBXR2020-OPE, LB2X3020-OPE, LBXR20BT
  • 100% Works Well with All: Fits the matrix system perfectly and works strong. Compatible with Black & Decker 20-Volt Tools LST201, LCC221, LCC222, LDX220C, LSTE523, LSTE525, LST200, LST522, LST120, LST220, LSW20, LSW221, LSW321, LCS120, LCS1020, LLP120, LHT2220, BDCDMT120
  • Fits Perfectly: Quality is tested to be equal to the OEM products. No memory effect on battery in any charge, holds a charge for up to 500 times. Compatible with Black and Decker 20V lithium charger LCS1620, BDCAC202B
  • Fade-free Power: Built-in integrated microchip prevents overcharging, self-discharge and lengthens battery life. Comply with FCC RoHS and CE security testing standards
  • Contact us: Any question click the "Ask a question" on our storefront or in "YOUR ORDER" options click the "Contact Seller"

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Multi-compatible

SHINTYOOL 21v Lithium Battery – 2.0 Ah Battery with Charger Adapter Led Indicator Compatible with Leaf Blower and Cordless Tiller

SHINTYOOL 21v Lithium Battery - 2.0 Ah Battery with Charger Adapter Led Indicator Compatible with Leaf Blower and Cordless Tiller

SHINTYOOL
  • ★ 【Compatible with More 】Our batteries are compatible with some major brands, for power tools bl1860b bl1850 bl1840 bl1850b-2 bl1845 bl1830 bl1820 bl1815 lxt-400 series please feel free to contact us for more model information.
  • ★【21 Volt Lithium Battery 】Battery voltage: 21v, capacity: 2000ah, type: lithium ion, made of 5 pcs quality lithium ion battery,can provide stable capacity and output.
  • ★【Charger】Support 100-240v universal standard ac input voltage.1a power adapter,us plug,led indicator to easily see the charging situation.
  • ★【Multi-Protect Safety System】This battery is equipped with overload protection, overheat protection & over-discharge protection.
  • ★ 【Note on Battery】In order to protect the battery, please do not charge more than 4 hours.Note: Please Fully charge the battery before its first use. Please do not charge the battery for overnight since it will badly damage the battery life.
  • ★ 【WE’VE GOT YOU COVERED】 Any Non-human Damage Or Any Reason You Are Not Completely Satisfied With Our Product, We Will Immediately Provide You A Full Refund ( Or Replace Your Item).
  • ★ Note: Our 21v battery is very similar to another 21v III battery, but the compatible tools and brands are different, please do not confuse and make a wrong purchase. Feel free to inquire to learn more.

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Lightweight design

DocSmart Battery for Mini Chainsaw & Trimmer-Only One 2000mAh Battery-Suitable Mini Chainsaw-Easily Help You Do Your Job Better

DocSmart Battery for Mini Chainsaw & Trimmer-Only One 2000mAh Battery-Suitable Mini Chainsaw-Easily Help You Do Your Job Better

DocSmart
  • 2000 mAh Battery: The small handheld chainsaw takes about 2 hours to charge and can work for 30 minutes with a single battery
  • It comes with 1 pcs 2000mAh rechargeable battery. Say goodbye to struggling with electrical cords and make your garden art easier.
  • Our 2000 mAh battery is compatible with DocSmart mini chainsaw and trimmer.
  • The DocSmart mini chainsaw battery weighs only 0.66 lbs (mini chainsaw weighs 3.26 lbs). and it is not easy to get tired after long-term use. User-friendly for family and temporary work, even the elderly can easily control it.

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Premium build

V-MODEST Lithium Battery 4.0Ah 21V Suitable for 6inch/8inch Mini Chainsaw Pole Saw Pruning Shears Pole Pruning Shears

V-MODEST Lithium Battery 4.0Ah 21V Suitable for 6inch/8inch Mini Chainsaw Pole Saw Pruning Shears Pole Pruning Shears

V-MODEST
  • 【SUITABLE FOR V-MODEST POWER TOOLS】Applies to V-MODEST 6inch/8inch mini chainsaw, Pole saw , Pruning shears, Pole pruning shears
  • 【LONG SERVICE LIFE】V-MODEST lithium battery with has lasting performance with advanced chip with overheat protection, Over-voltage protection, Over-current protection, Over-charge protection, Over-discharge protection, etc.
  • 【LED INDICATOR】Our batteries come with 4 LED indicator lights that allow users to monitor the power status. These lights display the remaining runtime, Reducing the risk of downtime .
  • 【NOTE】 Please charge completely before using. At least load once every 2 months. Remove the battery from the pruner when not in use to prevent slow discharge. Please keep away from moisture, Too hot and too cold.

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Brand-specific

21V Lithium Battery for 4 Inch Mini Handheld Cordless Electric Chainsaw, Replacement Battery (Only Battery)

21V Lithium Battery for 4 Inch Mini Handheld Cordless Electric Chainsaw, Replacement Battery (Only Battery)

New Huing
  • New Huing 4-INCH CHAINSAW ORIGINAL ACCESSORIES: Only suitable for New Huing 4-inch mini chainsaw, check the brand carefully before purchasing, please.
  • New Huing 4-INCH CHAINSAW ORIGINAL ACCESSORIES: Only suitable for New Huing 4-inch mini chainsaw, check the brand carefully before purchasing, please.
  • New Huing 4-INCH CHAINSAW ORIGINAL ACCESSORIES: Only suitable for New Huing 4-inch mini chainsaw, check the brand carefully before purchasing, please.
  • 21V LARGE CAPACITY BATTERY: removable and rechargeable lithium battery delivers fade-free power with no memory loss after charging.
  • 12 MONTHS STANDBY: any problem with usage and installation just feel free to contact us.

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Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.

Buying Guide

Buying Guide: Best lithium battery chainsaw

Battery Capacity & Runtime

  • Prioritize higher mAh ratings (e.g., 4000mAh) for longer usage
  • Check manufacturer claims for runtime under load
  • Consider dual-battery compatibility for extended projects

Compatibility

  • Verify voltage (21V, 20V MAX, etc.) matches your tool
  • Confirm physical connector type matches your chainsaw model
  • Check if batteries work across multiple tool brands

Safety & Durability

  • Look for overcharge/overheat protection circuits
  • Ensure UL, CE, or RoHS certifications are listed
  • Check build quality of battery casing and connectors

Charging & Convenience

  • Fast-charging capability reduces downtime
  • LED power indicators show remaining charge
  • Universal voltage input (100-240V) for global use

Performance

  • Higher voltage provides more cutting power
  • Check chain speed (m/s) for efficiency
  • Tool-free tensioning systems simplify maintenance

Ergonomics & Portability

  • Lightweight batteries reduce user fatigue
  • Compact design fits small-space work
  • One-handed operation capability for maneuverability

FAQs

Which chainsaw has the highest voltage?

EGO POWER+ Chain Saw operates at 56V, the highest among the listed products.

What is the best option for a 6-inch blade?

Seesii Mini Chainsaw comes with a 6-inch blade, ideal for lightweight tasks.

Which battery has the largest capacity?

V-MODEST Lithium Battery offers a 4.0Ah capacity, the highest listed.

Are there batteries compatible with Black & Decker tools?

Biswaye LBXR20 20V Lithium Battery is compatible with Black & Decker 20V MAX systems.

Which product includes a charger adapter?

SHINTYOOL 21v Lithium Battery comes with a charger adapter and LED indicators.

What is the most compact chainsaw option?

SOUSKY Mini Chainsaw is designed as a handheld, cordless model for portability.

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