Ryobi 1003-966-407 40 Volt 2.0 Ah Lithium-Ion Slide Battery with On-Board LED Fueal Gague (New Open Box) New open box item. Comes in original retail packaging. Box may show wear. Power your RYOBI 40-Volt tools with this high capacity lithium-ion battery. It provides fade-free power and longer run time whether you use it as a replacement or a spare battery. Use with the 40-Volt Charger to get a full charge in less than 2-hours.