| 摘要 |
PURPOSE: A supplementary battery is provided to charge supplementary electricity and to efficiently utilize the space of an electric tractor while maintaining the existing layout of the electric tractor. CONSTITUTION: A supplementary battery (1) for emergency driving is a portable battery capable of charging electric energy and has a coupling unit (12) which is located on the front side of a battery case and is to be coupled to a front wheel frame (4) for mounting a weight exposed toward the front side of an electric tractor. The electric tractor is driven by electricity, has a main battery removably mounted to a bonnet space (2) which is protected by a bonnet and is located around a front wheel, and has the supplementary battery removably mounted to the electric tractor. |
