Battery pack

The present invention relates to a battery pack including: a plurality of battery cells connected in series or in parallel; and a protection circuit module that is electrically connected with the bare cells and where a thermistor that senses the temperature of the bare cells is attached, in which the thermistor has an opposite side that is substantially perpendicularly opposite to an edge of the protection circuit module and a support is disposed between the opposite side of the thermistor and the protection circuit module.