·Side-pull batteries. It makes the replacement more quickly and easily, ensures the continuous operation, and greatly improves efficiency.

·Unfolding a snap button can fully open the cover. The users can check, test and maintain the driving system assembly, pump stations, controller assembly, batteries as well as other main electrical components.

·Hand brake and handle is set on the right side, which meets the ergonomic principles. It reduces the operator’s labor intensity and improves the operation comfort.

·Variable wheelbase design. Move the front axle to convert the length of the wheelbase. When extended, the whole vehicle becomes longer and provides the safer loading, superior traction and smoother driving. When retracted, the whole vehicle becomes shorter.