With Lithium Ion battery technology, PowerTap 2000 delivers portable power with zero-noise/zero-emissions and without fumes of gasoline. Unit operates with one on-switch and provides up to 6,000 W of power for applications such as power tools, water sump pumps, lighting and sound systems, and sporting equipment. Recharging in 90 minutes through standard electrical outlet, PowerTap 2000 provides up to 12 hours of uninterrupted power and is suited for indoor/outdoor use.