Portable power station delivers 1800W continuous and 3600 peak AC (alternating current) power when supplied with four DeWalt 20V MAX and Flexvolt batteries (not included). Power station is also a multiport battery charger for one to four 20V MAX batteries. Emulates a 15A residential circuit branch delivering the feel of household AC power. Patent Pending modified sine wave is compatible with both standard and electronically controlled variable speed tools. Self-protecting against electronic overload and includes multiple protection features in battery charging. Can be used in a variety of applications including job site and lifestyle use. Requires no gas to run, emits no engine fumes or noise and can be used in virtually any dry location.