Abstract: A power supplier in one aspect of the present disclosure includes an outputter, a first pack parallel coupler, a second pack parallel coupler, an output voltage switch, and a controller. Each of the first pack parallel coupler and the second pack parallel coupler includes pack couplers. The pack couplers are configured to be coupled by battery packs. The output voltage switch is configured to switch an electrical coupling state between the second pack parallel coupler and the outputter. The controller is configured to determine an output mode of the outputter. The output mode corresponds to a magnitude of voltage to be outputted from outputter. The controller is configured to control the output voltage switch based on a result of determination.

Abstract: A connector in one aspect of the present disclosure includes a first housing and a second housing. The first housing includes a first terminal, an insertion portion, and a displacement portion. The displacement portion is provided at an outer periphery of the insertion portion and includes a moving member. The second housing includes a second terminal and a tubular portion. The tubular portion allows insertion therein of the insertion portion to a locking position while the moving member is elastically displaced to an inner position. The tubular portion also includes a locking portion that locks with the moving member to thereby inhibit pullout of the insertion portion from the tubular portion.

Abstract: A power supplier in one aspect of the present disclosure includes an outputter, a first pack parallel coupler, a second pack parallel coupler, an output voltage switch, and a controller. Each of the first pack parallel coupler and the second pack parallel coupler includes pack couplers. The pack couplers are configured to be coupled by battery packs. The output voltage switch is configured to switch an electrical coupling state between the second pack parallel coupler and the outputter. The controller is configured to determine an output mode of the outputter. The output mode corresponds to a magnitude of voltage to be outputted from outputter. The controller is configured to control the output voltage switch based on a result of determination.

Abstract: A connector in one aspect of the present disclosure includes a first housing and a second housing. The first housing includes a first terminal, an insertion portion, and a displacement portion. The displacement portion is provided at an outer periphery of the insertion portion and includes a moving member. The second housing includes a second terminal and a tubular portion. The tubular portion allows insertion therein of the insertion portion to a locking position while the moving member is elastically displaced to an inner position. The tubular portion also includes a locking portion that locks with the moving member to thereby inhibit pullout of the insertion portion from the tubular portion.