Greenworks 24V 4.0Ah Lithium-Ion High-Power Battery, Upgraded with 35% Power Boost (Genuine Greenworks Battery/ 150+ Compatible Tools)

What It Is

This is a genuine Greenworks 24V 4.0Ah lithium-ion battery with a claimed 35% power boost over standard 2.0Ah packs. It’s designed for Greenworks 24V cordless lawn mowers, trimmers, blowers, and over 150 compatible tools in that voltage family.

Fitment & Compatibility

• Voltage only: Must be a Greenworks 24V tool (not 40V, 60V, or 80V). Check the tool’s battery port—if it accepts a 24V slide-pack, this fits.
• Model check: Works with all Greenworks 24V mowers (e.g., 25022, 25312, 25142) and most 24V outdoor tools. Does not fit 24V G-MAX or 24V Twin Force platforms.
• OEM vs aftermarket: This is a genuine Greenworks battery, so no adapter needed. Aftermarket 24V batteries may not have the same power boost or safety circuits.
• Physical size: Same footprint as standard 24V 2.0Ah/4.0Ah packs—should slide into any 24V tool without clearance issues.

Key Things to Know

• Power boost is real but variable: The “35% more power” applies to peak output, not runtime. You’ll get a noticeable torque increase in mowers and trimmers, but runtime is roughly 2x a 2.0Ah pack (about 30-40 min on a 16-inch mower).
• No installation difficulty: Just slide onto the tool until it clicks. No wiring or tools needed.
• Charging: Use a Greenworks 24V charger (sold separately). Charging time is about 60-90 minutes from empty. Do not use a 40V/60V charger—it will damage the battery.
• Common gotcha: The battery is heavy (about 1.5 lbs). On small handheld tools like a trimmer, it can make the tool feel unbalanced. Test before committing.

Should You Buy It

Buy this if you own multiple Greenworks 24V tools and need more runtime and power for a medium-sized lawn (up to 1/4 acre) or heavy trimming. It’s overkill for a single light-duty tool—stick with a 2.0Ah pack for weight savings. If you already have a 4.0Ah, the power boost is incremental; wait for a sale.