7500mAh Extend Capacity Replacement for Ryobi 40V Battery 7.5Ah Compatible with Ryobi 40 Volt Battery Lithium OP4026A OP4040 OP40201 OP4050A OP4015 OP40261 OP4030 OP40401 OP4060 Power Tools (1Pack)

What It Is

This is a high-capacity 40V lithium battery replacement for Ryobi cordless lawn mowers, trimmers, blowers, and other 40V tools. With 7.5Ah capacity (7,500mAh), it offers longer run time than most standard Ryobi batteries—ideal for larger yards or heavy-use sessions.

Fitment & Compatibility

• Works with any Ryobi 40V tool that uses the standard slide-on battery interface (most Ryobi 40V mowers, string trimmers, blowers, chainsaws, etc.).
• Replaces OEM models: OP4026A, OP4040, OP40201, OP4050A, OP4015, OP40261, OP4030, OP40401, OP4060.
• Not compatible with Ryobi 18V or 36V systems, or any tool requiring a different battery mount.
• Check battery compartment size on your tool: this pack is slightly taller than some original 4Ah batteries. Ensure your mower or tool has enough clearance (especially under a mower deck cover).
• Aftermarket – not Ryobi OEM. Performance and safety may vary; verify your charger works with lithium-ion packs (most Ryobi 40V chargers do).

Key Things to Know

• Run time: 7.5Ah provides roughly 1.5–2x the runtime of a standard 4Ah Ryobi battery. Good for up to 1/2 acre mowing on a single charge (depending on grass conditions).
• Installation: slides on exactly like OEM – no tools needed. Make sure it clicks firmly into place.
• Charging: compatible with most Ryobi 40V chargers, but charging may take longer (up to 3–4 hours from empty). Avoid using a fast charger not rated for this capacity.
• Quality & safety: aftermarket batteries can have less robust cell balancing and protection circuits. Check for overheating or swelling during first few uses. Some users report slightly shorter lifespan than OEM.

Should You Buy It

Buy this if you already own multiple Ryobi 40V tools and want significantly longer run time without buying a second OEM battery, especially for larger lawns. Skip if you need guaranteed OEM reliability, prefer the lightest battery for handheld tools, or are concerned about aftermarket safety standards.