Battery pack

A battery pack assembly comprising:

• a housing having a plurality of sides and defining an internal cavity, wherein the housing is sealed such that air is prevented from exiting the internal cavity;
• a battery cell assembly positioned in the internal cavity, the battery cell assembly comprising
• a plurality of battery cells and
• a frame supporting the battery cells, wherein the frame comprises
• a first support member receiving a first end of each battery cell of the plurality of battery cells,
• a plurality of wires, each wire of the plurality of wires bonded directly to the first end of a respective battery cell of the plurality of battery cells such that each wire is an axially outermost conductive component coupled directly to the respective battery cell of the plurality of battery cells,
• a second support member receiving a second end of each battery cell of the plurality of battery cells, the first support member and the second support member being spaced apart by a distance, and
• a plurality of leg members connecting the first support member and the second support member, each leg member of the plurality of leg members spanning the distance, wherein the first support member and the second support member each has a body extending between a first edge and a second edge opposite the first edge, and wherein the body defines a plurality of openings, each of the plurality of openings configured to align with one of the battery cells;
• and
• a fan configured to circulate air within the housing and through the battery cell assembly.