Power supply including thermistors disposed on anode ends of battery cells

A portable power supply comprising:

• a first battery cell assembly including a first frame supporting a plurality of first battery cells, the first frame having a first outer side, the first outer side having a plurality of first openings at least partially exposing the plurality of first battery cells;
• a second battery cell assembly coupled to the first battery cell assembly, the second battery cell assembly including a second frame supporting a plurality of second battery cells, the second frame having a second outer side, the second outer side being opposite the first outer side, the second outer side having plurality of second openings at least partially exposing the plurality of second battery cells;
• a plurality of first thermistors disposed on a first subset of the plurality of first battery cells, each first thermistor located on a first end face of a respective first battery cell of the first subset, the first end face of each respective first battery cell of the first subset being adjacent to the first outer side;
• and
• a plurality of second thermistors disposed on a second subset of the plurality of second battery cells, each second thermistor located on a second end face of a respective second battery cell of the second subset, the second end face of each respective second battery cell of the second subset being adjacent to the second outer side.