40V 6.5Ah Battery and Charger Kit Compatible with Ryobi Battery 40 Volt OP4026 OP40601 OP4050A OP4040 OP4030 OP4050 with OP401 40 Volt Charger

What It Is

This is a compatible 40V 6.5Ah lithium-ion battery and charger kit designed to power Ryobi 40V cordless lawn mowers, trimmers, blowers, and other outdoor power equipment. It replaces OEM Ryobi models like OP4026, OP40601, OP4050A, OP4040, OP4030, and OP4050, and includes the OP401 40V charger.

Fitment & Compatibility

• Voltage & Chemistry: Must be 40V lithium-ion – this kit fits any Ryobi 40V tool or charger that accepts the standard slide-on battery interface (common on 2010+ Ryobi 40V products).
• OEM vs Aftermarket: This is a compatible (non-OEM) replacement. It will not have Ryobi branding but should physically fit all Ryobi 40V battery ports.
• Physical Check: Ensure your mower’s battery compartment can accommodate the 6.5Ah size – it’s larger than a 2.0Ah or 4.0Ah pack. Measure the compartment (approx. 7.5” x 4” x 2.5”) if unsure.
• Charger Compatibility: The included OP401 charger works with all Ryobi 40V batteries, but verify your mower’s charging port matches the plug shape (standard barrel or slide-in dock).
• Model Check: Confirmed fit for Ryobi models: OP4026, OP40601, OP4050A, OP4040, OP4030, OP4050, and any 40V tool with the same slide-lock battery mount.

Key Things to Know

• Quality vs OEM: Compatible batteries often have slightly lower capacity or shorter lifespan than genuine Ryobi. Check reviews for long-term performance.
• Installation: No tools needed – slide battery onto mower until it clicks. Charger plugs into standard 120V outlet.
• Run Time: 6.5Ah provides roughly 45–60 minutes of mowing on a 20” deck, or 60–90 minutes on lighter tools (trimmer, blower).
• Storage & Safety: Store battery at 40–80% charge in cool, dry conditions. Avoid deep discharges to extend life.
• Warranty: Aftermarket kits often have shorter warranties (e.g., 1 year vs 3 years for Ryobi OEM). Confirm before buying.

Should You Buy It

Buy this kit if you need a budget-friendly backup or replacement battery for your Ryobi 40V mower or trimmer, and you’re comfortable with a compatible brand that may not match OEM longevity. It’s a solid value for the price, especially if you already own a Ryobi 40V tool and want a second battery/charger set for longer work sessions. Avoid if you require guaranteed OEM quality or full warranty support.