Abstract: A charging system for a high voltage battery includes a pair of contactors each electrically connected to one of positive and negative terminals of the battery and configured to enable charging of the battery when closed; and a controller programmed to generate a notification indicating that one of the contactors is welded closed based on port voltage values achieved while issuing a predetermined sequence of open and close commands to the contactors after charge completion.

Abstract: An example method of connecting an electric vehicle battery includes welding a landing of a terminal to a bus bar, and pressing a landing of the terminal and the bus bar against one another during the welding. The landing is along a first plane and a base of the terminal is along a second plane that is spaced from the first plane.

Abstract: A charging system for a high voltage battery includes a pair of contactors each electrically connected to one of positive and negative terminals of the battery and configured to enable charging of the battery when closed; and a controller programmed to generate a notification indicating that one of the contactors is welded closed based on port voltage values achieved while issuing a predetermined sequence of open and close commands to the contactors after charge completion.

Abstract: A cooling system may be operable to cool a battery pack or other device through a heat exchange operation supported, at least in part, with cycling of a coolant relative to a coldplate or other thermally conducting surface of the device and/or attached thereto. The system may include a coldplate operable to exchange heat with a battery pack; and a coolant tank operable to exchange heat with the coldplate, the tank having a channel for directing a coolant flow in a direction from an inlet of the tank to at least one outlet of the tank and an inlet accumulator between the inlet and a beginning of the channel, wherein the inlet accumulator is wider along the coolant flow direction than the channel and the inlet and having a sloped side leading towards the channel configured to pool the coolant flow prior to entry into the channel.

Abstract: An example method of connecting an electric vehicle battery includes welding a landing of a terminal to a bus bar, and pressing a landing of the terminal and the bus bar against one another during the welding. The landing is along a first plane and a base of the terminal is along a second plane that is spaced from the first plane.

Abstract: A cooling system operable to cool a battery pack or other device through a heat exchange operation supported, at least in part, with cycling of a coolant relative to a coldplate or other thermally conducting surface of the device and/or attached thereto.