A battery module structure is mounted on an electrical vehicle, including a retention frame mounted to a bar of a chassis of the electrical vehicle. The retention frame includes a top wall connected to the bar by opposite side walls whereby a space is form...

A battery housing (100) for medical scooter includes a movable base (10) provided with at least two battery compartments (14) for each receiving a battery therein, an electrode contact (15) provided at the bottom of each battery compartement (14) to electr...

A front axle (20) having wheels (21) at its ends, is turnably connected to an articulation unit (11) through a pivot shaft (23). In response to any unevenness such as bumps, pits and obstructions, the axle is turnable about the shaft within a clearance ran...