OHYES BAT 2 Pack 40V 6.0Ah Replacement Battery Compatible with Greenworks 40V Battery Power Tools 29252 20202 22262 25312 25322 20642 22272 27062 29462 Tool(NOT for Gen 1)

What It Is

This is a two-pack of 40V 6.0Ah lithium-ion replacement batteries for Greenworks cordless lawn mowers, string trimmers, blowers, and other 40V power tools. Each battery provides extended runtime for medium-to-large yards (up to 1/3 acre) on a single charge.

Fitment & Compatibility

Critical: NOT for Gen 1 Greenworks tools. These batteries only fit Greenworks 40V tools with the newer “click-and-go” slide-lock battery interface (introduced ~2015+). Compatible models include 29252, 20202, 22262, 25312, 25322, 20642, 22272, 27062, 29462.
Check your tool’s battery port: If it has a flat top with two side rails and a release button at the back, it’s Gen 2+ and compatible. If your battery slides in from the front with a top latch, it’s Gen 1—do not buy.
Physical size: 5.9 x 3.5 x 3.3 inches, 2.2 lbs each. Fits all current Greenworks 40V mowers, trimmers, blowers, and chainsaws. Not compatible with 60V or 80V tools.

Key Things to Know

• Lower quality than OEM. Multiple reviews report shorter lifespan (6-12 months) vs. Greenworks branded batteries. Likely uses lower-grade cells.
• Installation is tool-free. Slide onto compatible tool until it clicks. Remove by pressing the release button and sliding off.
• Charging: Works with all Greenworks 40V chargers (standard and fast). Full charge takes 2-4 hours per battery.
• No LED fuel gauge on the battery itself—you won’t know charge level until the tool slows or stops. OEM Greenworks batteries often have this feature.

Should You Buy It

Buy this if you need a budget-friendly spare battery pair for occasional use on a single Greenworks 40V tool and can accept a shorter lifespan. Avoid if you rely heavily on your mower for weekly cutting—spend more on OEM batteries for better reliability and longer warranty support.