2Pack 6.5Ah Replacement for Ryobi 40V Battery and Charger Kit for 40 Volts Battery OP4026 OP4040 OP40401 OP40601 with Dual Port Ryobi 40V Charger OP401

What It Is

This is a 2-pack of 6.5Ah replacement batteries plus a dual-port charger for Ryobi 40V cordless lawn mowers, trimmers, blowers, and other outdoor power equipment. It’s designed to replace OEM Ryobi 40V batteries (OP4026, OP4040, OP40401, OP40601) and includes a charger that can charge two batteries at once.

Fitment & Compatibility

• Battery voltage: Must be 40V – this pack is not compatible with 18V or 36V Ryobi tools.
• OEM model numbers: Directly replaces Ryobi OP4026, OP4040, OP40401, OP40601.
• Charger model: The included dual-port charger (OP401) works with all standard Ryobi 40V batteries, but check that your mower’s battery bay accepts the slightly larger 6.5Ah form factor (taller than 4Ah packs).
• Physical check: Measure your current battery compartment depth – 6.5Ah packs are about 1 inch taller than 4Ah. If your mower has a sealed battery cover, it may not close.
• Brand note: This is an aftermarket set, not OEM Ryobi. It will not communicate with Ryobi’s “Intelliport” or “Link” systems for battery health monitoring.

Key Things to Know

• Installation: Drop-in fit – no tools or wiring. Just slide into any Ryobi 40V tool or charger.
• Quality: Aftermarket cells may have slightly shorter lifespan than OEM Ryobi. Expect ~80-90% of OEM runtime after 100 charge cycles.
• Charger note: The dual-port charger charges sequentially (one battery at a time), not simultaneously. Full charge time for two 6.5Ah packs is roughly 4-5 hours.
• Common gotcha: Do not mix this aftermarket battery with OEM Ryobi batteries in the same charger – different internal BMS (battery management system) can cause uneven charging or error lights.
• Warranty: Usually 1-year limited (vs. 3-year for genuine Ryobi). Check seller’s return policy.

Should You Buy It

Buy this if you need extra runtime for a Ryobi 40V mower or trimmer and want a spare battery + charger for under $120. It’s a good budget option for light-to-medium use (1/4 acre or less). Skip it if you rely on Ryobi’s “Link” system for battery tracking, need OEM reliability for daily commercial use, or have a tight battery compartment that won’t fit the taller 6.5Ah pack.