2 Pack 7.0Ah Replacement for Ryobi 40V Battery,40 Volt OP4050 Battery Compatible with Battery OP4040,OP4040A1,OP40401,OP40404,OP4050A,OP40501,OP4060,OP4060A, 40V Power Tools

What It Is

This is a 2-pack of 7.0Ah 40V lithium-ion replacement batteries for Ryobi 40V cordless lawn mowers, trimmers, blowers, chainsaws, and other outdoor power tools. It’s designed as a higher-capacity alternative to Ryobi’s OEM 40V batteries, providing longer run time for larger yards or heavy-duty use.

Fitment & Compatibility

Before buying, confirm your tool uses Ryobi’s 40V platform (not 18V or 36V). These batteries are listed as compatible with models OP4040, OP4040A1, OP40401, OP40404, OP4050, OP4050A, OP40501, OP4060, OP4060A, and OP4050. They will also physically fit any Ryobi 40V tool that uses the standard slide-on battery mount. However, they are aftermarket replacements, not OEM Ryobi. Check the battery terminal shape and latch alignment—some aftermarket units may have slightly looser fits. Measure battery compartment dimensions if your tool has a tight enclosure (e.g., some mower battery trays). They will not work with Ryobi 18V or 36V tools.

Key Things to Know

• Capacity vs OEM: 7.0Ah is higher than most stock Ryobi 40V batteries (typically 4.0Ah or 5.0Ah). Expect longer run time, but charging may take longer with a standard charger.
• Build quality: Aftermarket batteries often use lower-grade cells. Some users report shorter overall lifespan (1–2 seasons) compared to OEM (3–4 seasons). Check for UL or CE certification marks to reduce fire risk.
• No warranty from Ryobi: These are third-party replacements. If they damage your tool or charger, Ryobi won’t cover it. Test with a charger that has overcharge protection.
• Installation: No tools needed—slide onto the tool until it clicks. Make sure the latch engages fully; a loose battery can disconnect mid-use.

Should You Buy It

Buy this 2-pack if you need extra run time on a budget and your Ryobi 40V tool is out of warranty or you’re okay with shorter overall battery life. Skip it if you prioritize long-term reliability, want a factory warranty, or use the battery in high-drain tools (e.g., a mower on thick grass)—OEM batteries typically hold voltage better under load.