Battery pack

A battery pack comprising:

• a battery housing having an upper battery housing portion and a lower battery housing portion;
• a core housing disposed within the battery housing;
• at least one pouch cell disposed within the core housing;
• and
• at least one tongue-and-groove assembly that includes a tongue extending from an inner surface of the lower battery housing portion and a groove extending into an outer surface of the core housing, wherein the tongue of the lower battery housing portion fits into the groove on the core housing.

A battery pack comprising:

• a battery housing having an upper battery housing portion and a lower battery housing portion;
• a core housing disposed within the battery housing, the core housing include at least one printed circuit board assembly (PCBA) alignment tab extending therefrom;
• at least one pouch cell disposed within the core housing;
• and
• at least one PCBA disposed on the core housing, wherein the PCBA includes at least one alignment slot that fits around the PCBA alignment tab on the core housing.