2-Pack 7500mAh Extend Capacity Replacement for Ryobi 40V Battery Compatible with Ryobi 40 Volt Lithium Battery OP4026 OP40601 OP4050A OP4040 OP4030 OP4050 Compatible with 40V Cordless Tool(Green)

What It Is

This is a 2-pack of aftermarket 7500mAh lithium batteries designed to replace Ryobi’s 40V line. Each battery provides extended runtime for Ryobi 40V cordless lawn mowers, trimmers, blowers, and other outdoor tools.

Fitment & Compatibility

Check your tool’s voltage and platform. These batteries are only compatible with Ryobi 40V tools—not 18V or 36V systems. They fit models that originally use Ryobi OP4026, OP40601, OP4050A, OP4040, OP4030, OP4050, and any 40V Ryobi tool with the standard slide-in battery mount. Measure the battery compartment on your mower or tool: these are slightly taller than some OEM Ryobi packs (approx. 5.5 x 3.5 x 4 inches). If your tool has a tight battery well, verify clearance before buying. Not compatible with Ryobi 40V chargers that lack a slide-in port (e.g., older universal chargers).

Key Things to Know

• Capacity is higher than OEM: 7500mAh vs. typical Ryobi 40V packs (around 4000-6000mAh). Expect longer runtimes, but charge time will also be longer on a standard Ryobi charger (4-6 hours per pack).
• Aftermarket quality varies: At 4.1 stars from 8 reviews, reliability is uncertain. Some users report shorter lifespan or swelling after heavy use. Check return policy before buying.
• No installation required: These drop into the battery slot—no tools or wiring. Just slide them in until they click.
• BMS protection included: Each pack has a built-in battery management system to prevent overcharge, over-discharge, and short circuits. Still, avoid leaving them on the charger for days.

Should You Buy It

Buy this 2-pack if you need more runtime for a Ryobi 40V mower or trimmer and already have a compatible charger—especially if OEM batteries are out of stock or priced higher. Skip it if you want guaranteed durability or if your tool’s battery compartment is tight; a single OEM pack may be safer for long-term reliability.