Greenworks 82CS34-4DP Chainsaw Review

The saw's headline figures put it in gas territory. The brushless direct-drive motor peaks at 3.4 kW, or 4.56 HP, with 4.0 Nm of maximum torque, 13,000 RPM and a chain speed of 82 ft/s. Greenworks markets it as a 65cc gas equivalent, and that comparison is a peak-to-peak one: 3.4 kW is the peak figure and rated power is lower, so the saw genuinely belongs in the 60cc-class conversation for torque without being a continuous 65cc replacement.

Cutting gear built for real wood

The 20-inch bar runs a .325-inch pitch, .050-inch gauge chain with 80 drive links, full chisel, driven by a 7-tooth rim sprocket. That is a semi-pro chain spec: it clears chips well, cuts smoothly and stays easy to replace because the size is common.

Felling and bucking hardware

Steel bucking spikes, a wrap-around metal handle with rubber overmold, a high-visibility felling line and a two-finger variable-speed trigger all point at the same job. Chain tension is set by hand through a side-access tensioner, and the automatic oiler is adjustable with a about 8.5 fl oz (250 mL) tank and a flip-up cap.

Safety and weather resistance

An inertia-activated mechanical chain brake stops the chain in under 0.2 seconds, and the saw carries an IPX4 rating, which means it shrugs off splashes but should never be hosed down.

No fuel, no pull start

There is no exhaust, no mixing gas and no cord to pull: the trigger responds instantly. The saw is quieter than a comparable gas model but still loud enough that hearing protection is required, along with chaps, a helmet with face shield and eye protection.

What comes in the kit

The box holds the saw, a 4.0 Ah battery, a charger, and the manual. Buying the kit is the sensible way in, because the bare tool alone often costs as much as the kit, so the battery and charger come effectively free.

What buyers say

Buyers on Amazon most often praise performance and build quality, and the review summary notes that one customer compares its cutting to a professional gas saw. Quality is the most mentioned positive topic, followed by performance. The large majority of ratings are four or five stars.

The 4.0 Ah battery is undersized for this motor, and that is the saw's real weak point. A 3.4 kW motor draws more than a small pack can feed continuously, so the saw cuts strongly at full charge and bogs or cuts out more as the pack drains and heats. Battery life is the one consistently negative theme among Amazon buyers, and the complaint that comes up most is the pack dropping to a low percentage quickly.

The 205-cut claim in context

Greenworks rates the saw at up to 205 cuts per charge on 4x4 lumber, which is a shallow cut in softwood rather than a 16-inch hardwood round.

Weight and balance

The saw weighs 12.7 lb bare and about 17.3 lb with the 4.0 Ah pack. That is heavy for limbing at height, and not a saw to take up a ladder. The pack sits rearward, so the saw balances differently from a gas model of similar size.

Charging a hot pack

The charger runs its fans and waits until a hot battery cools before charging it. That is normal lithium-ion behavior rather than a fault, but it slows the work-rest-work rhythm of a long cutting day.

Bar oil in storage

Manual chain tension

Tension is set by hand at the side of the bar, so it needs checking regularly, especially while the chain is new and still stretching.

Warranty and service

The warranty is not transferable, and repairs go through an authorized service dealer rather than directly to Greenworks. The Commercial badge does not bring a longer homeowner warranty.

One battery system only

The saw runs only on 82V Commercial batteries, which are their own system with their own connector. If you already own batteries from another platform, they will not fit.

These are the product's own figures. Some retail listings give slightly different weight, dimensions and battery watt-hours, so check the label on the box before you buy.

The 20-inch bar cuts about 18 to 20 inches in a single pass, so bigger trunks need a cut from each side. The 250 mL oil tank and the adjustable oiler let you match oil flow to the wood, and the 82 ft/s chain speed is what makes the full-chisel chain clear chips fast in green wood.