Semi-Electric Stackers with Powered Lift will raise and lower loads quickly and easily. Manual push operation stackers are made using high quality material and parts. All models are easily maneuverable using the standard pulling handle. Stackers are highly efficient and durable. Semi-electric stackers use (1) 12V. Integral battery charger and battery level gauge. Reduce worker fatigue and injury with the Power Traction Drive System. An alternative to costly fork trucks. This state of the art option allows a single operator to safely and ergonomically transport products. Maximum speed is 2.5 m.p.h. PTDS includes: Combination throttle / direction butterfly style controller, An adjustable steering yoke, An auto reverse emergency "belly switch", (1) 12V battery.