2Pack High Capacity 7500mAh 40V Battery Replacement for Ryobi 40V Battery 7.5Ah Compatible with Ryobi 40 Volt Battery Lithium OP4026 OP4040 OP4030 OP40601 OP4050A Power Tools

What It Is

This is a 2-pack of high-capacity 40V lithium-ion batteries (7.5Ah each) designed to replace Ryobi’s OEM 40V batteries. It powers any Ryobi 40V tool or mower, offering longer run time than standard 4.0Ah or 5.0Ah packs—ideal for large lawns or heavy-duty outdoor equipment.

Fitment & Compatibility

• Works with: All Ryobi 40V tools and chargers (mowers, trimmers, blowers, chainsaws, etc.) that accept the standard Ryobi 40V slide-in battery.
• OEM models replaced: OP4026, OP4040, OP4030, OP40601, OP4050A, and any 40V Ryobi battery with the same slide-mount design.
• Check before buying: Verify your Ryobi tool uses the 40V platform (not 18V or 80V). Measure your battery compartment—this pack is slightly thicker than some older 4.0Ah models, so confirm clearance in tight-fitting tools (e.g., some string trimmers). Use only with Ryobi 40V chargers (do not mix with other brands).
• Not compatible with: Older Ryobi 18V or 36V systems, or any non-Ryobi 40V tools.

Key Things to Know

• Capacity vs. weight: 7.5Ah gives ~50% more runtime than a 5.0Ah pack, but adds noticeable weight—fine for mowers, less ideal for handheld tools.
• Quality note: Aftermarket batteries may have slightly lower voltage sag under heavy load (e.g., thick grass) compared to genuine Ryobi. For light-duty trimming, difference is minimal.
• Installation: No tools needed—slides directly into tool or charger. Ensure contacts are clean and battery clicks fully into place.
• Charging: Works with standard Ryobi 40V chargers (P118B, P119, etc.). Full charge time ~2–3 hours. Avoid leaving on charger after full charge to prolong life.

Should You Buy It

Buy this if you have multiple Ryobi 40V tools and need extended runtime for large lawns or frequent use, and you’re comfortable with aftermarket quality. It’s a solid value for the price—just expect slightly less peak power than OEM under heavy loads. Skip if you prioritize absolute reliability or need the lightest battery for handheld tools.