Comparison: Best 21v Mini Chainsaw (Updated | Oct 14th)

When tackling lightweight cutting tasks, a 21V mini chainsaw can offer a blend of portability and power. This comparison explores top models designed for efficiency and ease of use, evaluating factors like battery life, cutting performance, ergonomics, and durability. Whether for pruning, firewood, or DIY projects, understanding key differences helps users choose a tool suited to their needs. We highlight pros and cons without endorsing specific brands, aiming to provide a balanced overview to guide informed decisions. Safety features and user-friendly designs are also considered to ensure practicality for homeowners and hobbyists alike.

Product Comparison: Best 21v Mini Chainsaw

Best budget

Mini Cordless Chainsaw Kit, Upgraded 6" One-Hand Handheld Electric Portable Chainsaw, 21V Rechargeable Battery Operated, for Tree Trimming and Branch Wood Cutting by New Huing

Mini Cordless Chainsaw Kit, Upgraded 6" One-Hand Handheld Electric Portable Chainsaw, 21V Rechargeable Battery Operated, for Tree Trimming and Branch Wood Cutting by New Huing

New Huing
  • EFFICIENT OPERATION: Only takes about 10 seconds to cut a log with a diameter of 5" (the specific value varies with the actual size and hardness of the wood).
  • LARGE CAPACITY BATTERY PACK: 21V removable and rechargeable battery delivers fade-free power with no memory loss after charging.
  • ONE-HAND USE: Due to its lightweight and soft anti-slip handle, women are easy to operate and will not be tired after working for a long time.
  • UPGRADED COPPER WIRE HIGH-EFFICIENCY MOTOR: Provides your tool with longer run-time, more torque, and more power which leads to less wear and tear, extending the life-time of the tool.
  • 2PCS HIGH WEAR-RESISTANT CHAINS: Adopts a high-quality guide chain that has undergone a deep quenching process to ensure smoother cutting and more wear-resistance.

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Battery pack

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 overall

21V Cordless Mini Pruning Chainsaw – 8" Battery Chainsaw with Automatic Oiling System and Security Lock, Handheld Electric Mini Chain Saw for Tree Stump or Trees Branch Cutting

21V Cordless Mini Pruning Chainsaw - 8" Battery Chainsaw with Automatic Oiling System and Security Lock, Handheld Electric Mini Chain Saw for Tree Stump or Trees Branch Cutting

BAHOOMED
  • Mini Chainsaw Cordless: This 4.2 lb. chainsaw is very sharp, has plenty of power to cut down the thick branches. Start slow with this chainsaw to get a feel of its torque and power. After that, get busy. Mini Electric Chainsaw with 2 Pack 21V 4000mAh Batteries and Charger Included, can work continuously
  • Convenient Oiling System: Automatic oiling system applies oil to the bar and chain to ensure durability and extend the life of the chain. Say goodbye to the inconvenience of manual oiling and embrace the efficiency of self-oiler system (The small chainsaw does not come with any oil, universal saw chain oil is recommended)
  • Security Lock: Mini chain saw cordless has a safety button in the handle to prevent accidental activation. The safety button and start trigger must be pressed simultaneously when you want to activate hand chainsaw. Chain saw comes with included gloves, goggles etc basic protective equipment to Increase safety
  • Tension Adjustment Knob: Mini electric chainsaw with tool-less chain tighten knob, making it easy to install and replace chains. Tool-less chain tensioning for quick adjustments so you can get back to the task at hand
  • Grind the Chain: Mini chainsaw battery powered comes with universal chainsaw file to keep chainsaws sharp. When filing, place file against beveled cutting surface of teeth 30° with saw, file from inside to outside of teeth. Sharpen all left-hand teeth on one side of chain and move to the other side and file all the right-hand teeth

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High capacity

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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Lightweight design

Mini Chainsaw 6-Inch Battery Powered – Best Cordless Small Handheld Chain Saw with 2 Rechargeable Batteries – 21V Power Chain Saws Battery Operated for Tree Trimming Wood Cutting

Mini Chainsaw 6-Inch Battery Powered - Best Cordless Small Handheld Chain Saw with 2 Rechargeable Batteries - 21V Power Chain Saws Battery Operated for Tree Trimming Wood Cutting

Tomyvic
  • 19.2 FT/S HIGH-EFFICIENT CUTTING: Only takes about 8 seconds to cut a 6 "diameter log (the specific value varies with the actual size and hardness of the wood).
  • 2.51 LBS ULTRALIGHT DESIGN: Designs with slim bodies make it easy to work anywhere, even in narrow spaces. Also, it is very suitable for women and the elderly to use one hand, and not easy to fatigue.
  • 2 x 21V LARGE CAPACITY BATTERY PACKS: Removable and rechargeable 2000mAh lithium batteries can provide longer battery life with self-overload and temperature protection.
  • UPGRADED POWERFUL COPPER MOTOR: Provides your tool with longer run-time, more torque, and more power which leads to less wear and tear, extending the lifetime of the mini chainsaw.
  • WIDE USAGE: Suitable for wood cutting, tree branches pruning, stubborn bushes cleaning, gardening. More portable than wired chainsaw, faster than reciprocating saws, and lighter than gasoline saws.

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High efficiency

Cordless Mini Chainsaw 21V,4In Electric Chainsaw,Handheld & Portable Power Chain Saw for Tree Trimming Pruning Garden & Yard Work,Battery Chain Saw Gifts for Men Women Dad Orange

Cordless Mini Chainsaw 21V,4In Electric Chainsaw,Handheld & Portable Power Chain Saw for Tree Trimming Pruning Garden & Yard Work,Battery Chain Saw Gifts for Men Women Dad Orange

Aokia
  • 【High-Efficiency Cutting】This mini electric chainsaw—a powerful option among chainsaws—is powered by a pure copper motor and equipped with a 550-watt high-power motor,significantly enhancing cutting speed. As an electric saw for tree branches,it can effortlessly cut through 4-inch branches and smoothly handle thicker wood,making it ideal for camping,tree trimming,and more
  • 【Lightweight and Portable】This 4-inch electric chainsaw cordless weighs only 2.4 pounds (including one battery),making it a truly portable tool. As a handheld chainsaw,its single-hand operation design prevents arm fatigue,allowing women and the elderly to carry it effortlessly and perform cutting tasks anytime,anywhere
  • 【Safety Design】Our cordless chainsaw incorporates strict safety measures:a safety lock prevents accidental startup,a blade guard protects hands from injury,and a textured anti-slip handle ensures a secure grip—making this hand chainsaw a reliable choice for home and garden use
  • 【Upgraded 21V Battery】This mini chain saw battery powered tool,is equipped with a removable and rechargeable 1500mAh battery and a fast charger.It offers extended runtime,perfect for daily wood cutting,garden pruning,farm work,and orchard branch trimming
  • 【Multi-Functional Applications】This electric hand saw,a versatile cordless saw—is not only suitable for tree pruning/firewood cutting but handles professional tasks too! Use it for DIY woodworking,camping setup,old furniture renovation,and more,covering both outdoor and home needs
  • 【Usage Tips】After using this mini saw for a few minutes,add a few drops of lubricating oil to the chain to reduce wear.A single oiling lasts all day,and checking the chain’s security before use keeps the tool in top condition
  • 【Complete Set】The package includes 1 electric saw,1 1500mAh battery,1 quick charger,2 chains,plus tools and safety gear—even accessories complementary to hand saws for tree trimming.All essentials are included,so you can start using this reliable tool immediately

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Women-friendly

Mini Chainsaw 6-Inch Battery Powered – Pink Cordless Electric Handheld Chainsaw with 2 Rechargeable Batteries – 21V Small Power Chain Saws Battery Operated for Tree Trimming Wood Cutting

Mini Chainsaw 6-Inch Battery Powered - Pink Cordless Electric Handheld Chainsaw with 2 Rechargeable Batteries - 21V Small Power Chain Saws Battery Operated for Tree Trimming Wood Cutting

Tomyvic
  • 19.2 FT/S HIGH-EFFICIENT CUTTING: Only takes about 8 seconds to cut a 4 "diameter log (the specific value varies with the actual size and hardness of the wood).
  • 2.51 LBS ULTRALIGHT DESIGN: Designs with slim bodies make it easy to work anywhere, even in narrow spaces. Also, it is very suitable for women and the elderly to use one hand, and not easy to fatigue for a long time.
  • 2 x 21V LARGE CAPACITY BATTERY PACKS: Removable and rechargeable 2000mAh lithium batteries can provide longer battery life with self-overload and temperature protection.
  • UPGRADED POWERFUL COPPER MOTOR: Provides your tool with longer run-time, more torque, and more power which leads to less wear and tear, extending the lifetime of the mini chainsaw.
  • WIDE USAGE: Tomyvic pink mini chainsaw can be used for deforestation, pruning, gardening, carpentry DIY, etc. It is the excellent gift for mom, friends, DIYers, women who like to do woodworking or gardening work.

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Extra battery

tietoc Mini Chainsaw-Only One Battery-Suitable Mini Chainsaw-Easily Help You Do Your Job Better

tietoc Mini Chainsaw-Only One Battery-Suitable Mini Chainsaw-Easily Help You Do Your Job Better

tietoc
  • Mini Chainsaw Battery 21V (1PCS)
  • Only One Battery-Suitable for Tietoc Mini Chainsaw-Easily Help You Do Your Job Better
  • Can be used for a long time. Charging at any time, convenient and fast.
  • Install Easily and it fits Tietoc mini chainsaw perfectly

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Universal charger

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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Versatile tool

2-in-1 Cordless Pole Saw 8 Inch&Mini Chainsaw, with 2×4.0Ah 21V Battery and Charger, Brushless Motor, Total Reach of Max 15ft, Electric Pole Saw for Tree Trimming,Yellow

2-in-1 Cordless Pole Saw 8 Inch&Mini Chainsaw, with 2×4.0Ah 21V Battery and Charger, Brushless Motor, Total Reach of Max 15ft, Electric Pole Saw for Tree Trimming,Yellow

Protmex
  • 2-IN-1 REACH&CUT – Protmex 2-in-1 Electric Pole Saw tool combines a powerful 900W electric chainsaw with an extending pole(4.2-7.8ft), allowing you to effortlessly trim branches at various heights. Simply detach the saw for standalone use to tackle ground-level tasks. It’s the perfect solution for your yard work
  • DUAL 4.0AH FOR MAXIMUM CUTTING – Equipped with 2 large-capacity 4.0Ah batteries, Protmex pole chainsaw ensures uninterrupted performance. No waiting, no delays. With both batteries, you can power through up to 100 cuts on 4×4 inch branches, making it perfect for yard work. Whether you're trimming high branches or tackling tough cuts, this pole saw delivers unmatched endurance and reliability
  • EASY CHAIN TENSION ADJUSTMENT – Protmex pole saw features a tool-free chain tensioning system, allowing you to easily adjust the chain tightness with a simple twist of the knob. Make sure to turn the knob clockwise after adjustment to secure it and check that it is tightly fastened to prevent the chain from loosening during use
  • EFFORTLESS COMFORT AND CONTROL – Designed with your comfort in mind, this tool features rubber-coated handles for a secure, non-slip grip, even during extended use. The 180°rotating handle lets you find the perfect handling angle, reducing strain on your wrists and arms. Plus, the included adjustable shoulder strap takes the weight off your hands, making it easier to lift and maneuver the saw for those hard-to-reach branches
  • GAME CHANGER FOR TREE TRIMMING – Protmex electric pole saw changes the game! No more climbing ladders to dangerous heights or struggling with manual cutting tools. With its extendable reach and powerful motor, you can effortlessly trim high branches from the safety of the ground. Lightweight, easy to use, and designed for precision, this tool saves you time, energy and worry
  • POWERFUL MINI CHAINSAW – Experience cutting power like never before with our 900W Electric Pole Saw. Equipped with a chain speed of 0-10m/s, it offers variable speed control for precise cutting on any job. Featuring automatic oil lubrication, you can work longer without worrying about maintenance. Adjusting chain tension and replacing the chain and guide plate is a breeze, ensuring your saw always performs at its best
  • WORRY-FREE SERVICE – After receiving the pole saw, insert the battery and do a test run with no load to check the chain tension. If the chain is loose, adjust it before using. Every time before use, please check the chain tension first. Plus, enjoy 3 years of after-sales support and 24/7 customer service. Contact us anytime and we’ll be happy to assist you

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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 21v mini chainsaw

Power & Battery Life

  • Prioritize higher mAh batteries for extended runtime
  • Check if batteries are included or sold separately
  • Look for fast-charging capabilities

Cutting Performance

  • Evaluate motor power (watts or torque ratings)
  • Check maximum branch diameter cut efficiently
  • Assess chain quality and sharpening requirements

Safety Features

  • Look for safety locks to prevent accidental activation
  • Verify presence of hand guards or protective covers
  • Check for overload/temperature protection systems

Ease of Use

  • Confirm lightweight, ergonomic handle design
  • Look for tool-less chain tensioning adjustments
  • Check if one-handed operation is feasible

Versatility & Accessories

  • Assess compatibility with additional battery packs
  • Check for included protective gear (gloves, goggles)
  • Look for multi-tool functionality (pole saw attachments)

Durability & Maintenance

  • Evaluate build material quality (ABS, metal components)
  • Check for automatic oiling systems
  • Look for corrosion-resistant chain coatings

FAQs

What is the longest blade length available?

The 21V Cordless Mini Pruning Chainsaw (B0DFW9436T) has an 8"blade.

Which mini chainsaw includes a battery and charger?

The 2-in-1 Cordless Pole Saw & Mini Chainsaw (B0FC2FJ91L) includes 2×4.0Ah 21V batteries and a charger.

Are there any one-handed models?

The Mini Cordless Chainsaw Kit (B092VSFBZS) is a 6"one-hand handheld model.

Which model has automatic oiling?

The 21V Cordless Mini Pruning Chainsaw (B0DFW9436T) features automatic oil lubrication.

Is there a pink-colored option?

The Mini Chainsaw (B0BYRGBJJL) is available in pink.

Which model is designed for pruning?

The 21V Cordless Mini Pruning Chainsaw (B0DFW9436T) is specifically designed for pruning tasks.

Are replacement 21V batteries available?

Replacement 21V lithium-ion batteries are offered by SOUSKY (B0F9L4HC7V) and other brands.

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