1. Function: Lifting & lowering by battery power, driving by manual pushing or pulling. So the operator only needs manual move the stacker to the right place and place the goods on the fork, it will be lifted by electric. 2. Security Assurance: This semi electric straddle tacker has foot pedal parking brake, it can protect your safety when the stacker is used on a ramp. 3.Wide Usage Scenarios: The stacker can be widely used in supermarket, factory, warehouse and any place where goods need to be moved.