One battery, two voltage settings. Use this high performance lithium-ion battery with Atlas™ 80v tools for ultimate power and performance. Install the battery in an Atlas™ 40v tool and it intelligently switches voltage, giving up to 2X runtime over a 40v 2.5 Ah battery.
Compare our price of $109.99 to GREENWORKS at $199.99 (model number: 2901702). Save $90 by shopping at Harbor Freight.