Bonacell 40V 7.0Ah Replacement for Ryobi 40V Lithum Battery OP4050A OP40601 OP4040 OP4030 OP4050 OP4026 OP40261 OP40201 OP40401 OP4060A RY40200 Cordless Power Tools with LED Indicator

What It Is

The Bonacell 40V 7.0Ah battery is a high-capacity aftermarket replacement for Ryobi 40V lithium-ion cordless lawn mowers, string trimmers, blowers, and other outdoor power tools. It provides extended runtime compared to standard 4.0Ah or 5.0Ah packs, ideal for larger yards or heavy-duty use.

Fitment & Compatibility

• Check your tool’s voltage and platform: This battery is only compatible with Ryobi’s 40V system (not 18V or 24V). Look for a “40V” label on your tool or battery port.
• Compatible Ryobi models (partial list): OP4050A, OP40601, OP4040, OP4030, OP4050, OP4026, OP40261, OP40201, OP40401, OP4060A, RY40200, and many other 40V tools. If your tool uses a slide-on battery (not a plug-in or backpack style), it fits.
• Physical dimensions: This battery is slightly taller and heavier than a standard 4.0Ah pack. Ensure your mower’s battery compartment has enough clearance – most Ryobi 40V mowers do, but some compact trimmers may be a tight fit.
• OEM vs aftermarket: Bonacell is a third-party brand. It may not charge on all Ryobi chargers – test your charger model (e.g., OP40601, OP40401) for compatibility. Some older chargers may reject it due to different BMS protocol.

Key Things to Know

• Quality & performance: Users report reliable runtime close to OEM 6.0Ah packs, but some units fail within a year. Check the 1-year warranty and return policy before buying.
• LED indicator: The battery has a 4-LED charge level display, but it’s less accurate than Ryobi’s OEM gauge – use as a rough estimate only.
• Installation: No tools needed; slides directly onto the tool. Make sure the battery clicks firmly into place to avoid power loss during operation.
• Common gotcha: If your tool doesn’t power on, the battery may be in “sleep mode” – press the battery button once to wake it. If it still doesn’t work, the charger might not be compatible.

Should You Buy It

Buy this if you need a budget-friendly high-capacity battery for a Ryobi 40V lawn mower or trimmer and are okay with slightly less reliability than OEM. It’s a good value for light-to-medium use, but for heavy daily professional use, stick with genuine Ryobi.