2Packs Replacement for Ryobi 40V Battery 7.5Ah Compatible with 40v Lithium Battery OP40401 OP4026 OP40261 OP4050 OP40601 Compatible with Ryobi Battery 40V Cordless Power Tools (Green)

What It Is

This is a 2-pack of 40V 7.5Ah aftermarket lithium-ion batteries designed to replace Ryobi’s OEM 40V batteries. They power any Ryobi 40V cordless tool, including lawn mowers, trimmers, blowers, and chainsaws.

Fitment & Compatibility

• Works with: All Ryobi 40V tools (OP40401, OP4026, OP40261, OP4050, OP40601, and any other 40V Ryobi platform tool).
• Does not work with: Ryobi 18V ONE+ tools, or any other brand’s 40V system.
• Physical check: The battery slides into the same port as the original. If your tool has a 40V Ryobi battery slot, this will fit. No deck size or model number restrictions beyond the voltage.
• Charger compatibility: Works with all Ryobi 40V chargers (standard and rapid). No special adapter needed.

Key Things to Know

• Aftermarket quality: These are not OEM Ryobi. Expect slightly shorter lifespan and less consistent power delivery under heavy load compared to genuine Ryobi batteries. Some users report early failure after 1-2 seasons.
• Installation: Drop-in replacement. No tools or wiring required. Charge fully before first use (about 2-3 hours on a standard charger).
• Weight and size: Slightly heavier than the OEM 5Ah pack (about 1.5 lbs each). May make a handheld tool feel a bit more nose-heavy.
• Common gotcha: The green casing is slightly different from Ryobi’s OEM green. Not a functional issue, but noticeable if you care about color matching.

Should You Buy It

Buy this if you need a budget-friendly spare battery for light to moderate use (e.g., mowing a small lawn, trimming edges) and are okay with aftermarket trade-offs in longevity. Not recommended for heavy commercial use or if you need maximum runtime reliability.