DTK 6.2Ah 40V Replacement for Ryobi 40V Battery OP4040 OP4026 OP4030 OP4050 OP4060A Cordless Tool Battery

What It Is

This is a 6.2Ah 40V lithium-ion replacement battery for Ryobi cordless lawn mowers, trimmers, blowers, and other 40V yard tools. It’s designed to power equipment that originally used Ryobi’s 40V OP4040, OP4026, OP4030, OP4050, or OP4060A batteries.

Fitment & Compatibility

Before buying, confirm your tool or charger uses Ryobi’s 40V platform (not 18V One+). The DTK 6.2Ah fits models like Ryobi 40V mowers (e.g., RY40180, RY401150), string trimmers, and leaf blowers. It’s a direct replacement for OEM part numbers OP4040, OP4026, OP4030, OP4050, and OP4060A. Check your existing battery label for these numbers. The physical size matches standard Ryobi 40V packs—no modifications needed. It will charge on Ryobi 40V chargers (model numbers start with OP or 40V). Not compatible with 18V tools or other brand 40V systems.

Key Things to Know

• Quality vs. OEM: The DTK is an aftermarket battery. It’s typically cheaper than Ryobi original, but some users report slightly shorter runtime and lifespan than genuine Ryobi 6Ah packs.
• Installation: No tools required—slides directly into the tool’s battery port. Ensure it clicks securely and the latch engages.
• Common gotcha: This battery may not charge on older Ryobi 40V chargers (pre-2016). If your charger has a green LED that stays solid without flashing, it might be incompatible. Try charging in a newer Ryobi 40V charger.
• Warranty: Aftermarket batteries often have limited or no warranty. Check the seller’s return policy for defects within 30 days.

Should You Buy It

If you need a budget-friendly spare for light-to-moderate yard work and already have a Ryobi 40V charger, this is a solid value. It’s not ideal for heavy-duty commercial use or if you demand maximum lifespan—stick with OEM for that. For occasional mowing and trimming, this DTK battery saves money without major sacrifices.