Upgraded 7.5Ah Replacement for Ryobi 40V Battery, Compatible with Ryobi 40 Volt Battery OP4050A OP40601 OP4030 OP4040 OP4050 OP40261 OP40201 OP40401 OP4060A Cordless Power Tools & Chargers

What It Is

This is a high-capacity 7.5Ah lithium-ion replacement battery for Ryobi 40V cordless lawn mowers, trimmers, blowers, and other 40V tools. It’s designed for users who need longer runtime than the standard 4.0Ah or 5.0Ah packs, especially on larger lawns or heavy-draw tools.

Fitment & Compatibility

• Voltage & chemistry: Must be 40V lithium-ion – this is a direct drop-in for any Ryobi 40V tool or charger.
• Model numbers confirmed compatible: OP4050A, OP40601, OP4030, OP4040, OP4050, OP40261, OP40201, OP40401, OP4060A. Also works with any Ryobi 40V mower, trimmer, blower, or chainsaw that uses the standard slide-in battery (e.g., RY40180, RY40440, RY40580).
• Physical check: Measure your existing battery’s slide rail width and depth – this pack uses the same form factor as OEM 40V batteries. If your tool has a top-mount or backpack connector, it won’t fit.
• Charger compatibility: Works with all Ryobi 40V chargers (e.g., OP406, OP408, OP412). No adapter needed.
• Aftermarket note: This is a third-party battery, not OEM Ryobi. It uses generic cells, so performance and lifespan may vary compared to genuine Ryobi.

Key Things to Know

• Installation: Zero difficulty – slide on until it clicks, press the release tab to remove. No tools required.
• Runtime: 7.5Ah gives roughly 50% more runtime than a 5.0Ah pack (e.g., about 60–70 minutes on a 20-inch mower vs. 40–45 minutes). Expect slightly longer on trimmers/blowers.
• Weight: ~2.2 lbs – heavier than a 5.0Ah (1.8 lbs), but still manageable for handheld tools.
• Gotcha: Aftermarket batteries may not have the same over-discharge protection as OEM. Avoid fully draining the battery – recharge when the tool slows down to extend cell life.
• Cold weather: Performance drops below 40°F – store indoors and warm the battery before use in winter.

Should You Buy It

Buy this if you have a Ryobi 40V mower or trimmer and frequently run out of juice before finishing your yard, especially on lawns over 1/4 acre. It’s a good budget upgrade over OEM 5.0Ah packs (typically $70–90). Skip it if you want the warranty and reliability of genuine Ryobi batteries, or if your tool uses a different voltage or connector.