2Pack 7500mAh High Capacity Replacement for Ryobi 40 Volt Battery Lithium and OP401 Charger Compatible with Ryobi 40v Battery OP40401 OP4026 OP40261 OP4050 OP40601 OP40602 Cordless Tools (Green)

What It Is

This is a 2-pack of high-capacity 7500mAh aftermarket lithium-ion batteries for Ryobi’s 40V platform. Designed to power any Ryobi 40V cordless tool—mowers, trimmers, blowers, chainsaws—and charges with the OP401 charger.

Fitment & Compatibility

• Platform check: Only for Ryobi’s 40V system. Not for 18V or other voltage tools.
• Charger compatibility: Works with Ryobi OP401 charger. Also compatible with OP40401, OP4026, OP40261, OP4050, OP40601, OP40602 chargers.
• Physical fit: Identical shape and slide-mount to OEM Ryobi 40V batteries. Fits all Ryobi 40V tools and chargers without modification.
• Voltage vs capacity: 40V nominal; 7500mAh is higher than standard 4Ah–5Ah OEM packs, so run time will be longer.
• Aftermarket note: Not made by Ryobi. May lack some safety certifications (UL/ETL) that OEM packs carry.

Key Things to Know

• Run time: 7500mAh provides roughly 50% more run time than a standard 5Ah Ryobi battery. Expect 45–60 minutes on a push mower depending on grass conditions.
• Installation: Slide on, click. No tools or wiring.
• Weight: Heavier than OEM 5Ah packs—about 1.5 lbs more each. Can make handheld tools feel unbalanced.
• Charging: Use only the listed Ryobi chargers. Aftermarket chargers may damage the battery or cause slower charging.
• Warranty risk: Using aftermarket batteries may void tool warranties. Check your tool’s warranty terms.

Should You Buy It

Buy this if you need extended run time for multiple Ryobi 40V tools (especially mowers) and are comfortable with aftermarket safety trade-offs. Skip it if you want OEM reliability, lighter weight for handheld tools, or if your tool warranty is still active and you can’t risk voiding it.