NEW RYOBI OP40401 40V 4.0Ah 144Wh LITHIUM-ION BATTERY - GENUINE OEM BRAND NEW IN GENERIC OEM PACKAGING - NEVER USED - GUARANTEED TO WORK GREAT! WITH RYOBI OPERATOR'S MANUAL BATTERY ONLY - CHARGER NOT INCLUDED WORKS WITH ALL RYOBI 40 VOLT TOOLS AND EQUIPMENT BETTER THAN THESE RYOBI 40V BATTERIES: OP4015, OP4026, OP40261, OP4030 AND OP40301 PRODUCT OVERVIEW: 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 two hours. PRODUCT FEATURES: * 40-Volt 4.0Ah high capacity battery * Replacement back up battery for Ryobi 40-Volt lithium-ion tools * Fade-free power * On board LED battery life indicator gauge * No memory effect * Quick charging in less than 2 hours