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A 20-inch electric chainsaw cuts thick trunks and storm-fallen limbs without a pull cord. You get instant starts and no gas mixing. The challenge is matching gas saw cutting power without draining a battery in ten minutes.
I’m Min — the founder and writer behind Gadgets Feed. This guide is built by comparing the manufacturers’ published specifications and the patterns across verified customer reviews, so you get each pick’s real strengths and trade-offs instead of marketing spin.
The EGO CS2000 earns 4.5 stars across 148 owners, proving battery tech now matches gas. If you are shopping for a 20 inch electric chainsaw, this is the one worth your serious look.
Our Picks at a Glance
How To Choose The Best 20 Inch Electric Chainsaw
Most beginners chase voltage first — but the real story is motor type and battery amp-hours. A 56V saw with a brushless motor and a high-Ah battery will outperform a 60V brushed model on a small-pack. Here is what to look for.
Motor Power: Brushless vs. Brushed
A brushless motor (found on every pick here) delivers more torque, runs cooler, and lasts longer than a brushed motor. You get chain speeds up to 25 m/s on the top models — fast enough to keep the cut smooth without bogging in hardwoods.
Battery Capacity Matters More Than Voltage
Voltage tells you the potential power. Amp-hours (Ah) tell you how long that power lasts. A 4.0Ah battery on a 56V saw will give you roughly 30-45 minutes of mixed cutting; a 6.0Ah or larger pack can push you past an hour. If you have big property work, plan for at least a 5.0Ah battery or buy a saw that comes with one.
Bar Length and Chain Compatibility
A 20-inch bar lets you fell medium trees and cut firewood into logs. Look for a 3/8-inch pitch and.050-inch gauge chain — that is the standard size across most cordless 20-inch saws, so replacement chains and bars stay easy to find at any hardware store.
Weight and Balance
A 12-13 pound saw (without battery) is manageable for weekend use. The weight climbs with bigger batteries, so think about how long you will hold it. A saw with a wrap-around handle and good balance makes limbing and overhead cuts much less tiring.
Quick Comparison
| Model | Best For | Power Source | Weight | Included Battery | Amazon |
|---|---|---|---|---|---|
| EGO CS2000★ Best Overall | Best Overall | 56V Battery (bare) | 12.7 lb | No (bare tool) | Amazon |
| Dewalt DCCS677B | Dewalt Ecosystem | 60V Battery (bare) | — | No (bare tool) | Amazon |
| Greenworks 82CS34-4DP | Premium Power Kit | 82V Battery | 12.4 lb | 4.0Ah | Amazon |
| EGO CS2005 | All-In-One Kit | 56V Battery | 30 lb (with battery) | 6.0Ah | Amazon |
In‑Depth Reviews
1. EGO POWER+ CS2000
Our pick — 4.5★ from 100+ verified ratings; the strongest balance of quality and price.
The crowd-pleaser that finally makes electric feel like gas.
The EGO CS2000 delivers 55cc gas-equivalent power with chain speeds up to 25 m/s. Its brushless motor drives a 20-inch full chisel chain (3/8-inch pitch,.050-inch gauge, 69 drive links) through large limbs without bogging down. An onboard digital display lets you toggle speed modes and check battery charge, while a bright LED work light keeps the cut visible at dusk or in dark spots.
Buyers report cutting two 30-foot pines (15–18-inch trunks) on a single charge, with the 10Ah battery lasting about an hour. It powers through pinches that stall gas saws, with instant starts and zero fumes. The IPX4-rated weather resistance means it handles damp conditions without worry. At 12.7 pounds bare, it is light enough for limbing work.
What Wins People Over
- 55cc gas equivalent in a battery platform
- Digital display with speed modes and charge level
- IPX4 weather-resistant build
- 69-drive-link chain for aggressive cutting
What to Plan For
- Bare tool — you need EGO 56V batteries and a charger
- Heavy cutting can overheat 7.5Ah and 10Ah packs after 5-7 minutes
- Thicker-trunk work drains batteries fast; buy a second pack
Grab it if: you want gas-beating power without the pull cord, and you already own EGO batteries or plan to invest in a 6.0Ah+ pack.
Think twice if: you cannot handle the upfront spend on a quality battery system — a single big 10Ah battery adds significant cost.
2. Dewalt DCCS677B
Serious saw for the serious Dewalt tool family.
Dewalt’s 60V FlexVolt platform gives this 20-inch chainsaw gas-like cut power without engine noise. Owners mention it slices through 16-inch hickory with ease, and many say it finally surpasses their old gas Stihl. The build quality is the most-discussed aspect — 20 owners praise the fit and finish, and the cutting performance comes in second with 18 mentions.
Battery life is the recurring fit note here. A 60V 12.0Ah battery lasts roughly 15 minutes of heavy use, and owners say you absolutely need a 9.0Ah backup for any real session. The saw runs quiet — just the chain noise — but the FlexVolt packs can overheat with continuous cutting. The 42.21-inch length and 13.83-inch width make it a larger footprint than most, so it feels substantial in the hands.
Why It Stands Out
- Build quality tops the praise list — 20 owners call it out
- Cut performance praised by 18 owners; handles thick hardwoods
- Quiet operation; way less noise than any gas equivalent
The Real Trade-Off
- Battery life is mixed: a 12.0Ah pack lasts only about 15 minutes under load
- No included chain oil or case in the box
- 20-inch replacement chains are hard to find
Best for: Dewalt-shed owners who already have 60V FlexVolt batteries and want a no-compromise limbing and felling saw.
Not for: buyers hoping to get by with a single small battery — this saw is a battery hog and demands a deep pack collection.
3. Greenworks 82V 20″ Chainsaw
Commercial-grade voltage with a full kit in the box.
Greenworks pushes the voltage to 82V — a 3.4kW brushless motor that delivers 55cc gas equivalent power, which customers note competes with a Husqvarna 450 Rancher. The saw runs a 20-inch bar, has an automatic oiler with a transparent tank, a mechanical chain brake, and a wrap-around handle. It starts every time with no priming, no pulling, and no fumes.
The kit includes a 4.0Ah battery (288 watt-hours) and a charger, so you can use it right from the start. Reviewers point out cutting 10-18 inch logs easily, and one reviewer managed 30 trees in a day. The battery life gets honest feedback: the 4.0Ah pack gives roughly 15 minutes of heavy cutting, and some report the battery overheats into protection mode. Pair it with a second pack for serious sessions. The saw is 12.4 pounds — close to the EGO’s weight but with higher voltage for sustained torque.
The Power Pitch
- 82V commercial-grade motor, 3.4kW — rivals a 55cc gas saw
- Full kit: battery, charger, bar, chain included
- No pull cord, no carb cleaning, instant start every time
Where You Feel It
- Battery life is the most-discussed aspect (10 mentions — mixed verdict)
- 4.0Ah pack runs about 15 minutes under heavy load
- Not compatible with Greenworks 80V line — check your existing batteries
Reach for it if: you want a ready-to-run kit with commercial-grade voltage and you are okay buying a second battery for longer days.
Look elsewhere if: you need all-day runtime on one pack — the 4.0Ah battery is best for quick jobs and small properties.
4. EGO POWER+ CS2005
The same award-winning saw, now with a battery and charger included.
This is the CS2000 but bundled with a 6.0Ah battery and a 320W charger — everything you need to start cutting immediately. The brushless motor still delivers 55cc gas equivalent power at 25 m/s chain speed, with the same 20-inch full chisel chain. The onboard digital display controls speed modes and shows battery charge, and the LED work light keeps the cut visible in dim light.
Owners say it delivers up to 135 cuts on a 6×6 with the included 6.0Ah pack. One buyer cut through a 40-foot oak without issue. The quality and cutting performance each get 12 positive mentions. Battery life earns mixed feedback: a 6.0Ah battery lasts about 45 minutes in eco mode, and owners strongly recommend having a second battery for big tasks. The kit weighs 30 pounds with the battery in — noticeably heavier than the bare-tool CS2000, but the weight comes from the chunky pack and charger.
What Makes It Easy
- Full kit — saw, 6.0Ah battery, and fast charger in one box
- Same 55cc gas equivalent motor as the CS2000
- Digital display with speed modes and brake indicator
- IPX4 weather-resistant construction
The Weight Trade-Off
- 30 pounds total with battery makes it heavy for overhead cuts
- Battery life is mixed — some wish the 6.0Ah lasted longer
- Owners recommend a second pack for sessions over an hour
Best for: first-time EGO buyers who want the proven CS2000 platform and need a battery + charger included to hit the ground running.
skip it if: you already own EGO 56V batteries — the CS2000 bare tool saves money and keeps the same motor.
Understanding the Specs
Brushless Motor vs. Brushed Motor
A brushless motor uses electronic commutation instead of carbon brushes. That means less friction, less heat, and more torque delivered to the chain. For a 20-inch electric chainsaw, a brushless motor is essential — it gives you the grunt to push through dense hardwood without stalling, and it runs cooler so you can cut longer between rests.
Battery Voltage and Amp-Hours (Ah)
Voltage determines the potential power — higher voltage (56V, 60V, 82V) generally means more torque. Amp-hours determine runtime: a 4.0Ah battery stores less energy than a 6.0Ah battery, so it runs out faster under the same load. For a 20-inch bar, aim for at least a 5.0Ah pack. Bigger Ah also means more weight, so balance runtime goals against how long you want to hold the saw.
Chain Specs: Pitch, Gauge, and Drive Links
Pitch (3/8-inch) is the spacing between chain rivets. Gauge (.050-inch) is the thickness of the drive links that ride in the bar groove. Drive links (69 count) determine the chain length around the bar. Matching all three numbers is critical when buying a replacement chain. Most 20-inch cordless saws use the 3/8-inch pitch /.050-inch gauge / 69-drive-link standard.
IPX4 Weather Resistance
IPX4 (a rating that means the saw resists splashing water from any angle) lets you cut in damp conditions, wet grass, or light drizzle. It is not waterproof — you cannot submerge it or leave it in heavy rain — but for fall storm cleanup or morning dew cutting, an IPX4-rated saw keeps working without worry.
FAQ
How long does a 20 inch electric chainsaw battery last?
Are 20 inch electric chainsaws as powerful as gas?
Can I use any battery brand with these chainsaws?
Do I need a special chain for a 20 inch electric chainsaw?
Is a 20 inch chainsaw too big for limbing and trimming?
How do I maintain a cordless chainsaw?
Can I use a 20 inch electric chainsaw in the rain?
Will a 20 inch chainsaw fit in my car trunk?
What does “55cc gas equivalent” actually mean?
Why do some electric chainsaws overheat after a few cuts?
Final Thoughts: The Verdict
For most buyers, the 20 inch electric chainsaw winner is the EGO CS2000 because it delivers a 55cc gas-equivalent motor (enough power for thick trunks) with a digital display, LED light, and IPX4 weather resistance — all at a weight that stays manageable for a full afternoon of cutting. If you want a complete starter kit from the start, grab the EGO CS2005 with its 6.0Ah battery and fast charger — it saves you buying extras separately. And for those already in the Dewalt ecosystem, the Dewalt DCCS677B brings proven build quality and gas-level cutting to your existing battery collection — just budget for a second pack so you do not run out of power mid-cut.
How We Picked
We do not accept paid placement. Every pick is matched to a real buyer and a real use-case; we do not hands-on test units.
Sources & Methodology
Specifications: manufacturer listings and product documentation. Review insights: verified customer reviews, as of July 2026. Pricing: not shown on this page (it changes often); check the current price via the retailer link.
As an Amazon Associate, Gadgets Feed earns from qualifying purchases. This does not affect which products we feature.