NOVELTY - The battery (104) assembly comprises an enclosure, a first battery cell positioned within the enclosure, a first sensor positioned within the enclosure for detecting a force influencing the first battery cell, a second battery cell stacked on top of the first battery cell, and an adhesive layer positioned between the first battery cell and the second battery cell. The enclosure comprises a portion of protective film including polyester film and a plastic case portion. The first sensor is positioned between the first battery cell and the plastic case portion.    USE - The battery assembly is useful in an electronic device. Uses include but are not limited to a portable media player, cellular telephone, music players, video players, still image players, game players, other media players, music recorders, video recorders, cameras, other media recorders, radios, medical equipment, domestic appliances, transportation vehicle instruments, calculators, cellular telephones, wireless communication devices, personal digital assistants, programmable remote controls, pagers, laptop computers, desktop computers and/or printers.    ADVANTAGE - The battery assembly can be loosely packaged into portable, mobile, hand-held or miniature electronic device and can easily undergo for periodic physical inspection thus avoiding its physical impact and damage, and allows normal continuous operation for a long period of time.    DETAILED DESCRIPTION - The battery (104) assembly comprises an enclosure, a first battery cell positioned within the enclosure, a first sensor positioned within the enclosure for detecting a force influencing the first battery cell, a second battery cell stacked on top of the first battery cell, and an adhesive layer positioned between the first battery cell and the second battery cell. The enclosure comprises a portion of protective film including polyester film and a plastic case portion. The first sensor is positioned between the first battery cell and the plastic case portion or between the first battery cell and the second battery cell. A portion of the adhesive layer is positioned adjacent to a portion of the first sensor in a plane between the first battery cell and the second battery cell, and between the first sensor and one of the first battery cell and the second battery cell. The adhesive layer extends around a portion of the first sensor in the plane. A portion of the first sensor extends through a gap in the adhesive layer towards an edge of the first battery cell. A deformable element is positioned between the first battery cell and the enclosure. A third battery cell is stacked on top of the second battery cell. A second sensor is positioned between the third battery cell and the second battery cell for detecting a force influencing the third battery cell. A processor is configured to receive a first sensor output signal from the first sensor, receive a second sensor output signal from the second sensor, conduct an evaluation based on the received output signals, and generate a processor output signal based on the evaluation. The processor is further configured to alter an operation of the third battery cell independently from an operation of the first battery cell based on the processor output signal, and to turn off the third battery cell and to maintain operation of the first battery cell based on the processor output signal. The first sensor comprises force sensing material having a conductance that is configured to vary based on the force influencing the first battery cell, and a force sensing circuitry coupled to the force sensing material. The force sensing circuitry is configured to produce a force output signal based on the conductance of the force sensing material. The force sensing material comprises a variable electrical conductor. The variable electrical conductor has a first level of electrical conductance when the variable electrical conductor is quiescent, and a second level of conductance when a mechanical stress is applied to the variable electrical conductor. The variable electrical conductor is a quantum tunneling composite. The first sensor comprises a contact sensor, a pressure sensitive ink, a polymer membrane binary switch and a discrete dome switch. An INDEPENDENT CLAIM is included for a method for monitoring a battery comprising a first cell and a second cell stacked within an enclosure.    DESCRIPTION OF DRAWING(S) - The figure shows a simplified block diagram of an electronic device with a battery and a force sensor.    Housing (101)    Processor (102)    Battery (104)    Force sensor (105)    Device component. (106)