Greenworks 40V 19" Brushless (Push) Cordless Lawn Mower, 4.0Ah Battery and Charger

What It Is

This is a complete starter kit for the Greenworks 40V 19" brushless push mower, including a 4.0Ah battery and a charger. It’s designed for homeowners with small to medium lawns (up to 1/3 acre) who want a cordless, zero-emission mower.

Fitment & Compatibility

• Deck size: Fits only the 19" deck model. Not compatible with 20" or 21" Greenworks mowers.
• Model: Works exclusively with Greenworks 40V brushless push mowers (model #25022 or similar 19" variants). Check your mower’s model number on the underside of the deck or in the manual.
• Battery/Charger: The 4.0Ah battery is part of Greenworks’ 40V system—interchangeable with other Greenworks 40V tools (trimmers, blowers, etc.). The charger is a standard 40V charger.
• OEM vs. Aftermarket: This is an OEM (original equipment manufacturer) kit. Aftermarket 40V batteries may fit but often lack the same runtime or safety certifications.
• Measurement check: Ensure your mower’s battery compartment is designed for the 4.0Ah pack (slightly larger than 2.0Ah but same footprint). If you have an older 40V model, confirm the connector shape—some early versions used a different tab.

Key Things to Know

• Runtime: The 4.0Ah battery delivers about 30–40 minutes of mowing on a standard lawn (adjustable based on grass height and speed). For thicker or wet grass, expect less.
• Installation: No tools needed—slide battery into the mower’s compartment until it clicks. Charging takes about 1–2 hours from empty.
• Gotcha: The included charger is a standard 40V unit, not a fast charger. If you need quicker top-ups, you’ll need to buy a separate rapid charger.
• Quality: Greenworks brushless motors are durable and quiet, but the battery can degrade over 2–3 years with heavy use. Store it in a cool, dry place to extend life.

Should You Buy It

Buy this if you’re starting fresh with a 19" Greenworks mower or need a replacement battery for that specific model. It’s a solid value for small lawns and pairs well with other 40V tools. Skip it if your mower uses a different voltage or deck size—compatibility is strict.