Ryobi 40V 4.0Ah Battery OP4040 — Fade-Free Power for 40V Tools

Fade-Free Power for Your Ryobi 40V Tools

Power the Ryobi 40V landscape system with the 40V 4.0Ah Lithium Battery OP4040 and enjoy steady, fade-free performance from start to finish. The 4.0Ah capacity is designed for longer sessions in the yard, whether you are mowing, blowing, or pruning. With access to more than 75 tools in the Ryobi 40V lineup, this battery powers a wide range of tools and works with compatible chargers, giving you flexible options to expand your setup without swapping batteries for every tool.

Designed to fit the entire Ryobi 40V ecosystem, the OP4040 delivers reliable energy across multiple tools and tasks. Real-world use often hinges on staying productive, and this battery is built to support that flow by delivering consistent power when you need it most.

On-Board Indicator for Smarter Charging

The integrated battery life indicator keeps you informed about remaining runtime as you tackle yard duties. This feature helps you plan a top-up before you run out of power, reducing guesswork and interruptions during a project.

High-Output Ready

The extra cell capacity is ideal for higher output tools like mowers, blowers, and chainsaws. Compared with older NiCd packs, this lithium option tends to run cooler and longer in the field, supporting longer sessions without interruption.

• Impressive 4.0Ah runtime for longer yard sessions
• Works with Ryobi 40V Outdoor Cordless Tool Models RY40406, RY40540, RY40530, RY40620, RY40250, and more (sold separately)
• Weighs less and runs longer than NiCd batteries in its class
• Charges on compatible chargers such as OP40401 (sold separately)

Two Quick Reference Lists

• Fade-free performance from first use through completion
• Broad compatibility within the Ryobi 40V ecosystem
• On-board indicator aids proactive charging decisions
• Lightweight design for balanced handling during long jobs

In real-world use, you’ll notice steady power delivery and a practical indicator that helps you plan your next move—whether you’re edging, clearing pathways, or tidying up after a project. The OP4040 is a pragmatic upgrade for those who want to keep their 40V tools ready to work without frequent battery swaps, while still leaving room to expand a 40V system as needs evolve.