FERRYBOAT 29462 40V 6.0Ah Replacement for GreenWorks 40V Battery 29472 29252 20202 22262 25312 25322 20642 22272 27062 21242 G-Max Cordless Power Tools

What It Is

This is a 40V 6.0Ah replacement lithium-ion 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 29472, 29252, and others listed, offering higher capacity than standard 2.0Ah or 4.0Ah packs for longer runtime.

Fitment & Compatibility

• Check your tool’s voltage and platform: Only for GreenWorks 40V G-Max tools (not 60V or 80V systems). Look for “G-Max” on the tool or battery port.
• Model numbers that fit: 29462, 29472, 29252, 20202, 22262, 25312, 25322, 20642, 22272, 27062, 21242. If your battery has a different number, verify the connector shape—some older 40V GreenWorks packs have a slightly different latch.
• Physical size: Measure your battery compartment. This 6.0Ah pack is taller than 2.0Ah or 4.0Ah units. If your mower deck has a tight battery well, it may not fit. Common on compact push mowers (e.g., 16-inch deck).
• Aftermarket note: This is a third-party replacement, not OEM. It may lack GreenWorks’ internal battery management system (BMS) protections. Check reviews for fitment issues on specific model numbers before buying.

Key Things to Know

• Installation: Straight swap—slide into the port until it clicks. No tools required. If it doesn’t latch easily, don’t force it; check model compatibility.
• Quality & safety: Some users report shorter lifespan than OEM (1-2 years vs 3-4). It may not charge on GreenWorks chargers that have BMS lockout; test with your charger first. Avoid leaving on charger after full.
• Capacity gain: 6.0Ah gives ~50% more runtime than a 4.0Ah pack. Good for larger yards (up to 1/4 acre) but adds weight—consider if your mower is self-propelled.
• Warranty: Typically 30-day return, no long-term warranty. Keep your original OEM battery as a backup.

Should You Buy It

Buy this if you need a low-cost spare or upgrade for a GreenWorks 40V G-Max tool, especially for a larger mower or blower where extra runtime helps. Skip it if you want OEM reliability, have a compact mower with a tight battery slot, or need a battery for heavy commercial use.