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

What It Is

This is a high-capacity 40V 7.5Ah lithium-ion replacement battery designed to power Ryobi 40V yard tools—lawn mowers, trimmers, blowers, chainsaws, and more. It offers extended runtime compared to standard 4.0Ah or 5.0Ah packs, ideal for larger yards or heavy-duty tasks.

Fitment & Compatibility

Works with all Ryobi 40V tools and chargers that use the standard 40V slide-on battery interface. Check your tool’s model number—it replaces OEM batteries OP4040, OP40201, OP4050A, OP4015, OP40261, OP4030, OP40401, and OP4060. Physical dimensions: ~6.5 x 4.5 x 4 inches; verify your mower’s battery compartment has enough depth (some older mower decks may be tight). Not compatible with 18V or 36V Ryobi systems. If you have a 40V charger (e.g., OP4014, OP4060 charger), it will charge this pack.

Key Things to Buy

• Quality variance: Aftermarket batteries can have shorter lifespan or cell imbalance vs. OEM. Look for models with built-in BMS (battery management system) for overcharge/over-discharge protection—this one typically includes it.
• Installation: Drop-in fit; no modifications needed. Ensure the battery clicks firmly into place—loose connections cause intermittent power.
• Common gotcha: The 7.5Ah capacity adds weight (~2.5 lbs). Heavier than a 4.0Ah pack; may affect balance on handheld tools like trimmers. On mowers, it’s fine.
• Charging time: Expect 2–4 hours on a standard 40V charger. Fast chargers (OP4060) may reduce to ~1.5 hours.

Should You Buy It

If you need longer runtime for a 40V Ryobi mower or blower and don’t want to pay OEM prices ($80–$120), this is a solid budget pick. Skip it if you prioritize absolute reliability for daily commercial use or need a lighter pack for handheld tools.