Powilling 6.5Ah Battery Replacement for Greenworks 40V Battery 29472 29462, Compatible with Greenworks 40V G-MAX Power Tools 29252 20202 22262 25312 25322 20642

What It Is

This is a 40V, 6.5Ah aftermarket lithium-ion battery replacement for Greenworks G-MAX 40V cordless lawn mowers, string trimmers, blowers, and other outdoor power tools. It directly substitutes OEM models 29472 and 29462, providing extended runtime over the standard 2.0Ah or 4.0Ah packs.

Fitment & Compatibility

Before buying, verify your tool uses the Greenworks G-MAX 40V platform (not the newer 40V Twin Force or 60V systems). This battery fits all tools originally bundled with 29472, 29462, 29252, 20202, 22262, 25312, 25322, or 20642. Check the battery port shape: it should have a slide-on, two-rail design with a latch at the bottom. Measure your existing battery – this unit is approximately 5.5 x 3.5 x 4 inches. It will not fit Greenworks 24V, 80V, or standard 40V non-G-MAX tools. If your mower deck is 16 inches or smaller, the larger 6.5Ah pack may slightly increase weight but will still fit the battery tray.

Key Things to Know

• Quality vs. OEM: At $44.99, this is roughly half the price of a genuine Greenworks 6.5Ah battery. However, user ratings (3.8/5) indicate some inconsistency in longevity and charging performance.
• Installation: Tool-free – simply slide the battery onto the tool’s port until it clicks. No modifications or adapters needed.
• Runtime: 6.5Ah provides roughly 50–60% more runtime than a standard 4.0Ah pack. Expect 45–60 minutes of mowing on a 16-inch deck, depending on grass conditions.
• Common Issues: Several users report the battery does not charge on Greenworks chargers (model 29252 or 29972) if the charger’s firmware is older. Try a full discharge/recharge cycle first. Also, the plastic housing may feel slightly less robust than OEM.

Should You Buy It

Buy this if you need an affordable spare or replacement for a Greenworks G-MAX 40V tool and are willing to accept slightly lower build quality for a significant price savings. It’s a good choice for light-to-medium use, but if you rely on your mower for large lawns or commercial work, stick with the genuine Greenworks battery for better reliability and warranty support.