Model 20312 has been Greenworks' 16-inch 40V saw for long enough that the SKU outlasted the hardware behind it, and the current build is the brushless one: 9.28 lb bare, a 4.0Ah pack good for a claimed 120 cuts, and a $300 kit price that puts a whole battery platform in the garage for less than a mid-range gas saw. The 120-minute recharge is the number that stings, because Greenworks ships the slow charger with this kit — a second pack matters more here than on the 60V and 80V saws, which refill in 40 to 60 minutes. The .043-gauge chain is the honest signal of where this sits: narrow-kerf, easy on the motor, happiest in wood under about a foot. It is a limbing and cleanup saw carrying more bar than its motor really justifies.

Best for: Suburban owners buying into Greenworks 40V who want a 16-inch bar for storm cleanup without paying 60V prices.

Specifications

Engine class: 40cc class (placed by shipped bar length)
Voltage: 40 V
Kit battery: 4 Ah
Bar length: 16 in
Bar range: 16 in
Single-pass cut: about 14 in (bar minus 2)
Chain: 3/8" low-profile pitch / .043" gauge, 56 DL
Weight: 9.28 lb, tool only, without battery (manufacturer spec)
Power type: Battery
Use case: Homeowner
Warranty: 3-year tool and battery
Model: 20312

Manufacturer figures except the engine class and single-pass cut, which are derived here. What each spec means

9.28 lb bare with a 16-in bar
Claimed 120 cuts per charge
$300 with a 4.0Ah pack

Where it is strong

Complete 4.0Ah kit at $300 undercuts most 16-inch battery saws from name brands
9.28 lb bare is light enough for sustained overhead limbing
Narrow .043-gauge chain keeps the motor from bogging in small wood
The 40V pack runs 75+ other Greenworks tools, including their mowers
Tool-only version (2006002AZ, about $180) exists for owners who already have packs

Where it falls short

120-minute recharge is double what Greenworks' own 60V and 80V kits take
16-inch bar oversells a 40V motor — big hardwood bogs it
.043 chains are a narrower aftermarket than the .050 stock every shop carries
3-year warranty, not the 4-year the 80V line carries
Greenworks reuses SKU numbers across generations, so parts lookups and used listings get confusing

Written from the spec sheet and the maker's documentation; owner reports for this model were too thin to summarize.