Abstract: A battery device includes a box body, a protective cover, at least one reinforcing beam, a plurality of lifting lug assemblies and at least one battery group. The box body has an insertion port. The reinforcing beam is arranged in the box body. Each lifting lug assembly includes a first part and a second part, and the second part and the first part are detachably connected. The first part is fixedly connected to the box body and the reinforcing beam, and a part of the first part adjacent to the protective cover and the battery group are provided with a gap therebetween or abut against each other in a first direction. The first direction is perpendicular to a direction in which the battery group is inserted into the box body, such that the battery group is inserted into the box body through the insertion port.

Abstract: A vehicular safety device for monitoring the presence of a child or pet in a motorized vehicle. The device interfaces with the vehicle's power receptacle for detection of the on/off state of the vehicle. The operator is prompted to inform the device of the presence of the child or pet upon start of the engine of the vehicle through an auditory interface. When the engine of the vehicle is shut down, the device provides an audible reminder to the operator that a child or pet is present in the vehicle.

Abstract: A flexible circuit member, a preparation method thereof, and a battery apparatus are provided. The flexible circuit member includes an extension unit having a first body portion, a second body portion, and a stacking portion connected between the first and second body portions. The stacking portion has at least two layers due to the folding processing. A first end of the extension unit in a long-axis direction is an end portion of the first body portion that is not connected to the stacking portion. A second end of the extension unit in the long-axis direction is an end portion of the second body portion that is not connected to the stacking portion. A conductive wire harness for electrical signal transmission extends from the first end to the second end. After the stacking portion is unfolded, a distance between the first and second ends in the long-axis direction decreases.