Labtec 29472 40V 6.0Ah Battery Replacement for GreenWorks 40V Battery 29472 29462 29252 20202 22262 25312 25322 20642 22272 27062 21242 G-Max Cordless Power Tools (2 Packs)

What It Is

This is a 40V 6.0Ah lithium-ion battery pack (sold as a 2-pack) designed to replace GreenWorks G-Max 40V batteries. It powers cordless lawn mowers, string trimmers, blowers, chainsaws, and other GreenWorks 40V tools.

Fitment & Compatibility

• Exact models it replaces: GreenWorks 29472, 29462, 29252, 20202, 22262, 25312, 25322, 20642, 22272, 27062, 21242.
• Tool compatibility: Any GreenWorks G-Max 40V tool that uses the slide-on battery interface (not the older push-in style). Check your tool’s battery port shape—it should match the rectangular slide-on design.
• OEM vs aftermarket: This is a third-party replacement from Labtec. It is not made by GreenWorks, so you lose OEM warranty coverage. Fitment is generally identical, but slight physical variation can occur in latch tightness or terminal alignment.
• What to verify: Measure your existing battery’s dimensions (roughly 5.7 x 3.5 x 4.5 inches) and confirm the terminal slot pattern matches. If your original battery has a different part number not listed, it may still work—but check user forums for that specific model.

Key Things to Know

• Quality & lifespan: Aftermarket batteries often use lower-grade cells than OEM. Expect shorter runtime per charge and faster capacity fade over time. The 6.0Ah rating is likely optimistic; real-world capacity may be closer to 5.0Ah.
• Installation: Slide onto the tool until it clicks. No tools required. If it feels loose or doesn’t lock, do not force—return it.
• Charging: Use only GreenWorks 40V chargers. Never use a charger rated for a different voltage. Charging time is typically 1-2 hours.
• Common gotcha: Some users report the battery not seating fully due to slightly thicker casing. Test fitment immediately upon arrival. Also, aftermarket batteries may not trigger the tool’s low-battery shutoff correctly, potentially damaging the tool.

Should You Buy It

Buy this if you need a low-cost backup set for light yard work and are comfortable with potential shorter lifespan and fitment risk. Avoid if you rely on your tools for heavy or professional use—stick with genuine GreenWorks batteries for reliability and warranty.