Ryobi 40V 4.0Ah Battery + Slim Charger Kit (OP4040 + OP403A)

Elevate your outdoor power with the Ryobi 40V Battery and Slim Charger Kit

When you tackle large lawns, gardens, or weekend projects, dependable power makes a difference. The Ryobi 40V 4.0Ah high-capacity battery delivers roughly twice the runtime of the standard 40V high-capacity option, so you can power through longer tasks with fewer interruptions. Its fade-free performance keeps tool response steady as a charge remains available, helping you maintain momentum during mowing, trimming, or edging sessions.

Designed for real-world use, this kit pairs a high-capacity OP4040 battery with a slim, space-saving charger. A practical on-board LED life indicator gives you a quick read on remaining power, while protective over-molded edges help cushion the battery against the occasional bump in a shed, garage, or workshop. The system remains compatible with the full Ryobi 40V tool lineup and existing chargers, simplifying upgrades for your outdoor arsenal.

What’s in the kit and how it helps

• Includes the Ryobi 40V 4.0Ah battery (OP4040) and the slim charger (OP403A)
• Compatible with all Ryobi 40V tools and chargers for seamless expansion
• On-board LED battery life indicator for at-a-glance planning
• Lithium-ion cells deliver fade-free performance for consistent power
• High-capacity 4.0Ah battery supports extended run time between charges

Charger features and practical use

• Charger includes a USB power source to charge small electronics while you work
• Compact, wall-mountable design makes storage and access straightforward
• Smart charging technology helps protect and extend battery life
• Works with any Ryobi 40V battery, simplifying tool compatibility across jobs

Real-world scenarios

Picture a weekend project—long lawn sessions, hedge trimming, or garden bed refreshes—where dependable power and quick recharging help you stay productive. The battery’s indicators let you time tool swaps, while the compact charger keeps a tidy workspace. This kit offers flexibility and reliability as you move between tools, without sacrificing performance.

Note: This information highlights practical features and potential benefits based on the product data. Actual results may vary with usage and conditions. The kit is designed to support your outdoor tasks with consistent energy and convenient charging, rather than guaranteeing outcomes.