40V Volt Lithium-ion 6.0 Ah High Capacity Battery Op40602

What It Is

This is a 40V, 6.0 Ah lithium-ion battery (model OP40602) designed to power cordless lawn mowers, string trimmers, blowers, and other outdoor equipment that uses the Greenworks 40V platform. It’s a high-capacity upgrade for larger yards or longer runtime between charges.

Fitment & Compatibility

• Brand & Platform: Exclusively fits Greenworks 40V tools (e.g., mowers, trimmers, chainsaws). Not compatible with 60V, 80V, or other brands (Ryobi, Ego, etc.).
• Mower Size: Works with any 40V Greenworks mower (16”, 20”, 21” deck, push or self-propelled). Capacity is ideal for decks 20”+.
• OEM vs Aftermarket: This is a genuine Greenworks OEM battery (model OP40602). Aftermarket 40V batteries often have lower capacity or fitment issues—stick with OEM for reliable performance and warranty.
• Physical Check: Dimensions ~6.5” x 4.5” x 4.5”; weight ~3.5 lbs. Ensure your tool’s battery compartment has clearance (most Greenworks 40V tools accept it without modification).

Key Things to Know

• Runtime vs Weight: 6.0 Ah provides roughly 50–70 minutes of mowing (depending on grass density and deck size) but is heavier than 4.0 Ah or 2.5 Ah batteries. Expect ~3.5 lbs.
• Charger Compatibility: Works with any Greenworks 40V charger (standard or rapid). Charging time ~90–120 minutes with a 2A charger; faster with a 4A rapid charger.
• No Installation Difficulty: Slides into any Greenworks 40V tool’s battery port—no tools or wiring needed. Just align and press down until it clicks.
• Common Gotcha: If your tool is older (pre-2015), ensure the battery terminals match. Greenworks 40V batteries are backwards compatible, but some very early models used a slightly different latch design.

Should You Buy It

Buy this if you own a Greenworks 40V mower (especially 20”+ deck) or other 40V yard tools and need extended runtime for larger lawns (¼ acre or more) without switching batteries mid-job. It’s a premium, reliable upgrade over the standard 4.0 Ah—ideal for heavy use or trimming/edging after mowing.