Replace for Ryob 40V Battery 6.0Ah OP4060 OP4040 Battery OP4050 OP4015 OP4026 OP4030, Compatible with Ryob 40V HP Series Tools

What It Is

This is a replacement 40V 6.0Ah lithium-ion battery for Ryobi 40V cordless lawn mowers, trimmers, blowers, and other outdoor tools. It powers any Ryobi 40V tool that accepts the standard slide-on battery interface, including the HP series.

Fitment & Compatibility

Check your tool’s battery port: This battery fits all Ryobi 40V tools that use the standard slide-on mount (the same as Ryobi’s OP4060, OP4040, OP4050, OP4015, OP4026, OP4030). It does not fit older Ryobi 18V or 36V tools, or any 40V tools with a different locking tab design (e.g., some early brushed models).
Measurements: Roughly 6.5" x 4.5" x 3.5" – verify clearance in your mower’s battery compartment.
OEM vs aftermarket: This is a third-party replacement, not Ryobi OEM. It may have slight differences in fit (tighter/looser slide) and lower peak current output under heavy load.
What to confirm: Look at your original battery model number (printed on the label). If it ends in OP40xx, this should work. If you have a 40V tool that uses a different interface (e.g., older “green” 40V batteries with a different latch), it will not fit.

Key Things to Know

• Quality: User reviews average 4.0/5, but some report shorter runtime than OEM (about 80-90% of original capacity) and occasional failures within 6 months. Not as durable as Ryobi’s own battery.
• Installation: No tools needed – simply slide onto the tool’s battery mount until it clicks. If it’s tight, do not force; check alignment.
• Common gotcha: The battery may not fit snugly in some Ryobi mowers (e.g., 40V HP brushless models) – test before fully committing. Also, the charge indicator lights may not match OEM behavior (e.g., fewer LEDs or dimmer).
• Charging: Works with any Ryobi 40V charger (standard or fast charger), but charging time may be slightly longer due to different internal BMS.

Should You Buy It

Buy this if you need a budget spare battery for light to moderate use (e.g., trimming, blowing) and don’t mind a slight drop in runtime and durability. Avoid if you rely on your mower for heavy-duty, all-day cutting, or if you want guaranteed fit and long-term reliability – stick with Ryobi OEM.