For use where gasoline and propane engines become a hazard, use of two 12 volt deep cycle type batteries produce a 24 volt system for longer operation time. An optional charger is available. Batteries may be charged on the Power Vac by plugging into the charger, or batteries may be removed to a charging table and a fresh set replaced for continuous use. Depending on batteries, 90 minutes of operation are available. Batteries purchased locally. 1 HP D.C. Motor rated at 3200 RPM. Features a polarized plug for re-charging batteries. The Power Vacuum is proudly manufactured in the USA using 100% Solar renewable Energy. The Elgee Power-Vacs are multi-purpose vacuums that can be used in various environments and for numerous applications. The Power Vacuums are maneuverable, durable and reliable. They can be used ideally on jobs up to 100, 000 sq ft but no job is too small. At 40, 000 sq ft per hour, the Power Vac saves time and money by cleaning 12 times faster than manual broom and rake methods. The Power Vacs are low maintenance. There are no moving parts such as chains or belts, no gates, hinges, or levers to complicate operations. The machine is always at the right operation height, ready to pick up any size object.