40V 16 in Brushless Chainsaw - Cordless Power for Firewood

Our review of the 40V 16 in brushless chainsaw finds it best suited to homeowners, hobby loggers and anyone needing a lightweight cordless saw for pruning, firewood and small tree felling; the single biggest reason to buy is its brushless 40V motor paired with two 4.0Ah batteries that deliver gas-like cutting performance without fumes or a heavy start. It runs quietly, starts instantly, and its automatic oiler and tool-free chain tensioning make routine use straightforward for users who want a capable saw without the maintenance and noise of a gas machine.

Key Features

• Brushless motor: The 40V brushless motor provides stronger torque, quieter operation and longer motor life for sustained cutting sessions.
• Dual large batteries: Two 4.0Ah batteries and a 2.4A dual charger give long run time and can deliver up to about 200 cuts of 4x4 in wood per charge under normal conditions.
• Two speed settings: High and low speeds let you match cutting power to the task, with the high speed for hardwood and the lower speed to conserve battery and control cuts.
• Tool-free chain tensioning: The tool-less system makes setting optimal chain tension quick and keeps downtime low between jobs.
• Auto oiler and prep note: Automatic oiling keeps the chain lubricated during use, but remember to add lubricating oil before first use and run the saw for about 10 seconds idle to establish oil flow.
• Safety features: A safety button plus switch combination, reduced-kickback head and instant-stop chain brake add important protections for everyday use.

Who It's For

This chainsaw is ideal for homeowners who need a reliable cordless saw for pruning, cutting firewood and felling small to medium trees without the hassle of fuel mixing or heavy maintenance. Its lightweight feel and compact 16 in bar make it accessible for older users or those who prefer a single-handed option for lighter tasks.

Professional logger or high-volume commercial users should consider a higher-displacement gas saw for sustained heavy-duty use; also those who need extremely long continuous run time without battery swaps may find the battery limitations a constraint in full-day commercial work.

Pros & Cons

Pros

• Brushless 40V motor delivers strong cutting power and longer motor life compared with brushed alternatives.
• Two 4.0Ah batteries and fast dual charger provide convenient runtime and quick turnaround between sessions.
• Tool-less tensioning and automatic oiler reduce maintenance time and keep the chain performing consistently.
• Built-in safety controls and a reduced-kickback head improve user confidence during cutting.

Cons

• Battery life can vary by task and some users may experience quicker depletion under heavy cuts, requiring extra battery spares for extended work.

Specifications

Power type	40V brushless electric
Bar length	16 in
Batteries included	2 x 4.0Ah
Charger	2.4A dual port charger
Speeds	High 7165 RPM / Low 5370 RPM
Typical performance	Up to 200 cuts of 4x4 in wood per charge (task dependent)
Chain care	Tool-free tensioning and automatic oiling (add oil before use)

Our Verdict

For homeowners and part-time users who want a quieter, low-maintenance alternative to gas, this 40V brushless 16 in chainsaw offers excellent value: it combines strong cutting power, usable battery life and practical features like tool-less tensioning and auto-oil. Buy it if you need reliable cordless performance for pruning, firewood and small tree work; bring spare batteries if you expect heavy or prolonged cutting sessions.

Frequently Asked Questions

How long do the batteries last?
The two 4.0Ah batteries can deliver up to about 200 cuts of 4x4 in wood per charge under typical conditions, with run times up to roughly 55 minutes on low speed depending on load.

Is any assembly required?
The saw ships with the bar, chain, batteries and charger; fitment of the chain and bar is straightforward and tool-less tensioning makes adjustments fast after initial setup.

Do I need to add oil before first use?
Yes, add lubricating oil before operation and run the saw idle for about 10 seconds to ensure oil flow is established before cutting.