Best 20-Inch Battery Chainsaws for Power and Long-Run Cutting
When tackling large limbs, firewood, or storm cleanup, a 20-inch battery chainsaw offers the balance of long reach, solid cutting power, and cordless convenience. This guide highlights five top-performing 20″ battery models, comparing their power, runtime, and key features to help you choose the right tool for substantial outdoor cutting tasks.
| Product | Brand | Battery Type | Bar Size | Notes |
|---|---|---|---|---|
| EGO POWER+ CS2005 | EGO Power+ | 56V 6.0Ah Battery | 20″ | Gas-equivalent power; up to 135 cuts per charge |
| EGO POWER+ CS2000 | EGO Power+ | 56V Battery (not included) | 20″ | High power; up to 135 cuts per charge with compatible batteries |
| Greenworks 82V 20″ | Greenworks | 82V Battery | 20″ | Commercial-grade brushless motor; up to 205 cuts per charge |
| Greenworks 80V 20″ | Greenworks | 80V Battery | 20″ | Great for homeowners; brushless motor; high torque |
| DEWALT 60V FLEXVOLT 20″ | DEWALT | 60V FLEXVOLT Battery | 20″ | Automatic oiling; safe, long-lasting performance |
EGO POWER+ CS2005 — 20” Battery Chainsaw
The CS2005 model from EGO Power+ features a brushless motor delivering power equivalent to a 55cc gas chainsaw, with chain speeds up to 25 m/s. It can deliver up to 135 cuts per charge when paired with the included 6.0Ah 56V battery. The 20-inch bar and full-chisel chain (3/8″ pitch, 0.050″ gauge, 69 drive links) are designed for heavy-duty tasks, including large branches, stumps, and tall trees. This configuration emphasizes performance and efficiency, appealing to users who need sustained cutting capability in a cordless format.
Key considerations include compatibility with all EGO 56V ARC Lithium batteries, ensuring you can swap or upgrade batteries as needed. The CS2005’s runtime and power are best utilized with the compatible battery system, and its design supports extended cutting sessions without frequent recharges. For safety and handling, users should take standard precautions with chainsaws, including proper PPE and secure footing.
EGO POWER+ CS2000 — 20” Battery Chainsaw (Battery Not Included)
CS2000 mirrors the CS2005 in power potential, featuring a high-efficiency brushless motor and a 20-inch bar with a full-chisel chain. It is rated for up to 135 cuts per charge when used with a 6.0Ah 56V battery, offering similar performance to the CS2005 but without the battery included. The design emphasizes compatibility and modularity within the EGO ecosystem, enabling users to equip multiple batteries to extend work sessions across larger projects. For those who already own EGO gear, this model provides a strong option for cordless, long-reach cutting.
Practical considerations include ensuring you have the appropriate battery on hand and understanding charging times. As with all battery saws, environmental conditions and load affect runtime. Safety features and proper maintenance (oil level checks and chain tension) are essential for optimal operation.
Greenworks 82V 20″ Brushless Chainsaw
This Greenworks model uses an 82V brushless direct-drive motor, delivering robust cutting power with up to 205 cuts per charge in practical scenarios. It includes an automatic oiler, heat-treated steel components, and a transparent oil tank for monitoring lubrication. The 20-inch bar is paired with a chain designed to handle demanding yard work, including heavy limbs and overhead pruning. The tool is positioned for landscapers and professionals who require consistent performance and a long run profile without fuel.
Key considerations include battery availability, charge times, and weight. The 82V platform generally provides strong torque and efficient cutting, but users should assess whether the heavier battery impacts maneuverability in extended sessions. Safety features such as a chain brake and lockout mechanisms should be reviewed before operation.
Greenworks 80V 20″ Brushless Chainsaw (Tool Only)
Designed for homeowners and serious yard projects, this Greenworks unit uses an 80V battery to deliver substantial cutting power. The brushless motor creates higher torque and efficiency, and the tool’s safety features, including a mechanical chain brake, support safer operation during heavy workloads. This model is especially suitable for tree felling, limbing, pruning, and firewood preparation where a 20-inch bar length is advantageous.
Considerations for this option include ensuring you have compatible Greenworks batteries and charging capacity, as well as evaluating if the 80V platform aligns with your existing tools. The weight, balance, and ergonomics also play a role in long-duration sessions, so testing in a comfortable stance is recommended before committing to larger jobs.
ReliaRoads 16-Inch Brushless Chainsaw (40V)
While this model features a 16-inch bar and a 40V configuration, it is included to show how battery platforms vary by bar length. The brushless motor aims for cutting efficiency and a longer tool life, with compatibility to DeWalt 20V MAX batteries via a multi-battery approach. It’s best suited for pruning and smaller diameter cutting tasks and illustrates the importance of selecting bar length to match typical workloads.
When evaluating this option, consider if a shorter bar better matches your typical cutting tasks and whether the DeWalt battery ecosystem you own is compatible with the tool. Lubrication, battery availability, and charger speed will influence how quickly you can complete a project.
EGO POWER+ CS1613 — 16” Battery Chainsaw
For users who prefer a lighter, more compact option while still enjoying cordless freedom, the CS1613 offers a 16-inch bar and a 40cc gas-equivalent brushless motor, delivering up to 130 cuts on a 4×4 with a 4.0Ah battery. This model highlights how bar length impacts cutting capacity and manageability, particularly for pruning and mid-size limbs. The EGO system remains compatible with their 56V line, enabling battery sharing across tools.
Consider the trade-off between bar length and power. A 16-inch model may be easier to handle for some tasks, but a 20-inch bar will reach further and tackle larger jobs with greater continuous cutting potential. Battery life, charge time, and weight are important factors in planning longer sessions.
DEWALT 20V MAX 12″ Cordless Chainsaw Kit
The DEWALT DCCS621P1 kit offers a compact 12-inch option with a high-efficiency motor and a long runtime capable of up to 100 cuts per charge. While it does not match the 20-inch platform, it provides a contrast within DEWALT’s ecosystem and shows how bar length and battery chemistry influence performance. It is a useful reference point for homeowners needing a lighter tool for smaller tasks, quick cleanup, and portability.
Buying Guide: Key Purchase Considerations for 20-Inch Battery Chainsaws
- Bar length and chain type: A 20-inch bar is ideal for larger limbs and thick wood. Look for a full-chisel chain for efficient cutting through hardwood and a 3/8-inch pitch with a 0.050-inch gauge for durability and drive-link count.
- Battery platform and capacity: Higher voltage platforms (e.g., 56V, 82V, 80V) generally deliver stronger torque and longer run times. Check compatibility with other tools in the same brand family to maximize battery reuse and cost efficiency.
- Runtime and cuts per charge: Manufacturers quote cuts per charge under specific test conditions. Real-world performance depends on wood density, moisture, and chain maintenance. Consider carrying spare batteries for extended projects.
- Weight and balance: A heavier battery or saw can increase fatigue during long sessions. Try handling the tool to assess vibration, grip comfort, and maneuverability, especially in overhead cuts.
- Safety features: Ensure a chain brake, automatic oiling, safety chain pitch, and proper guards are present. Mechanical brakes and chain tension indicators help maintain safe operation.
- Maintenance requirements: Regular oiling, chain tension checks, and bar/chain cleaning extend tool life. Look for tool-less tensioning and simple oil-fill access.
- Access to support and parts: A widely supported brand with readily available chains, bars, batteries, and chargers reduces downtime and replacement costs.
- Climate and use-case fit: Battery performance can vary with temperature. Colder environments may reduce runtime; select a model whose battery chemistry performs well in your typical climate.
- Price-to-performance balance: Bow to the trade-off between peak power versus weight, runtime, and brand ecosystem. A higher upfront cost may pay off with longer-term efficiency and battery interchangeability.