6000mAh 40V Lithium Battery Replacement for Greenworks 40V Battery | Compatible with Greenworks 40 Volt Battery 24282 20312 24252 21332 25322 20672 G-Max Cordless Power Tools

What It Is

This is a 6000mAh 40V lithium-ion replacement battery for Greenworks G-Max cordless lawn mowers, trimmers, blowers, and other 40V outdoor power tools. It’s designed to replace OEM batteries like the 24282, 20312, and 25322, offering higher capacity for longer run time.

Fitment & Compatibility

• Voltage & Chemistry: Must be 40V lithium-ion – this battery fits any Greenworks 40V G-Max tool. It will not work with 24V, 60V, or 80V systems.
• OEM Part Numbers: Directly replaces Greenworks models 24282, 20312, 24252, 21332, 25322, and 20672. Check your existing battery’s label for these numbers.
• Physical Fit: Same slide-on mount as all G-Max 40V batteries. Measure your battery compartment: this unit is roughly 6.5 x 4 x 4 inches. If your tool takes a different shape (e.g., backpack or backpack-style), it won’t fit.
• Brand Note: Third-party replacement, not Greenworks OEM. Works with Greenworks tools but may not charge on Greenworks rapid chargers (standard Greenworks 40V charger works fine). Verify your charger’s output voltage (40V).

Key Things to Know

• Higher Capacity: 6000mAh vs. typical 4.0Ah OEM – expect up to 50% longer run time on mowers and trimmers.
• Installation: Snap-in, no tools needed. Ensure battery is fully seated and clicks into place.
• Charging: Use only a Greenworks 40V charger. Do not use a 20V or 80V charger. Charging time is ~2-3 hours from empty.
• Quality Notes: Third-party batteries may have slightly shorter lifespan than OEM. User reviews note consistent performance for 1-2 seasons. Check for a warranty (often 1 year). Avoid if you need guaranteed OEM reliability for heavy commercial use.

Should You Buy It

Buy this if you own a Greenworks 40V G-Max tool and want a budget-friendly spare or higher-capacity battery for longer yard work sessions without buying a new OEM unit. It’s not for commercial landscapers or those who need a warranty beyond one season. For occasional home use, it’s a solid value at $40.