40V Electric Lawn Mower 16" Cordless Battery Powered Mower, 2 in 1

The KOMASTY 40V Electric Lawn Mower is a battery-powered 2-in-1 walk-behind mower designed for quick yard upkeep. Operating on a dual-battery system, it offers cordless convenience without the mess of gas or oil, making it suitable for maintaining small patches of turf and straightforward residential lawns.

At the center of the machine is a brushless motor spinning up to 3400 RPM, paired with a sharp steel blade and a 16-inch deck. The deck is shaped to optimize airflow and lift grass upright for a cleaner trim. You can adjust the cutting height between 1.37 inches and 2.95 inches across 5 distinct positions. Yard cleanup is adaptable as well, letting you insert the mulching plug to drop clippings back into the soil or attach the 10.6-gallon rear collection bag.

Starting the mower requires a dual-action safety mechanism where you hold the safety button while pulling the start lever. Power comes from two 4.0Ah batteries that work simultaneously. To reduce downtime between tasks, the package includes two individual chargers so both packs can recharge at the exact same time. Assembly is straightforward, supported by a step-by-step video guide.

The primary trade-off is the operating window, as the dual batteries provide up to 10 minutes of runtime on a full charge. Additionally, attempting to cut through grass that is overly tall or dense can trigger the built-in overheat protection mechanism, causing the motor to stop until it cools down.

Verdict: The KOMASTY 40V Mower is a practical choice for homeowners with very small yards who want a quick, clean trim without gas maintenance. If you have a larger property or regularly tackle overgrown lawns, the 10-minute battery life will require planned charging intervals.

• Cutting Deck Width: 16 inches
• Motor Type: Brushless (up to 3400 RPM)
• Battery Setup: Two 4.0Ah batteries (dual-battery system)
• Grass Bag Capacity: 10.6 gallons
• Height Adjustment: 5 positions (1.37 inches to 2.95 inches)
• Blade Material: Steel
• Certification: CPF certified

A great fit if you:

• Have a small patch of grass that can be finished within a 10-minute window.
• Want the flexibility to alternate between mulching and using a 10.6-gallon collection bag.
• Prefer charging both of your power packs at the exact same time.

Consider something else if you:

• Need to mow large yards that require extensive continuous runtime.
• Regularly deal with thick or exceptionally tall grass that might trigger overheat shutoffs.

How long do the batteries last during use?
The two included 4.0Ah batteries provide up to 10 minutes of runtime when operating together.

What cutting height options are available?
You can adjust the steel blade to 5 different height settings, ranging from 1.37 inches to 2.95 inches.

Why did the mower suddenly stop in thick grass?
The mower features an overheat protection mechanism that stops the motor when cutting grass that is too high or thick. Allow the unit to cool down before restarting.

Can both batteries be charged at the same time?
Yes, the package includes two separate chargers so you can replenish both battery packs simultaneously.