TECHNOLOGY FOCUS - ELECTRONICS - Preferred Method: In the method for providing notice to limit degradation within a battery pack, the battery output contactor is opened a predetermined amount of time after the absence of the signal, and where the communication link couples the battery pack electronic modules in a daisy-chain configuration. The signal is a series of pulses output at a predetermined timing. The first battery pack electronic module is a battery current sensing module, and where the second battery pack electronic module is a battery control module, and where at least one monitor and balance board (MBB) is located between the first battery pack electronic module and the second battery pack electronic module. At least one of the battery pack electronic modules is assigned an address for communicating with the second battery pack module according to a position of the at least one of the battery pack electronic modules in the daisy-chain configuration. The communication link is comprised of a single electrical conductor. The communication link is at least partially isolated via optical couplers from the battery pack electronic modules. Preferred System: The second module is configured to interrupt the signal during a condition of degradation recognized by the second module, and where the third module of the electronic modules includes hardware circuitry for controlling the output contactor. The second module is configured to pass the signal during an absence of a condition of degradation recognized by the second module. The third module includes a controller having instructions for assigning addresses to modules in the electronic modules. The third module is a battery pack controller module configured to communicate a condition of battery pack degradation to a controller external to the battery pack when the signal is interrupted by the second module of the electronic modules in the battery pack. The first module, the second module, and the third module are in communication via a daisy-chained communication link. The daisy-chained communication link is in communication with a low voltage bus in the battery pack. A system, for providing notice to limit degradation within a battery pack, comprises a signal generator configured to generate a signal; a first circuit for detecting a threshold condition of a battery pack, the circuit also configured to pass and interrupt the signal; and a second circuit, the second circuit configured to open an output contactor of the battery pack in response to an absence of the signal at the second circuit for more than a predetermined amount of time. The signal generator is coupled to the second circuit via a communication link, and where the system further includes a controller for communicating a request to limit battery pack degradation to a controller external the battery pack. The first circuit is one of circuits for detecting the threshold condition of electronic modules, and where the communication link is arranged in a daisy-chain configuration between the electronic modules. The controller includes further instructions for assigning addresses to the electronic modules. Each of the electronic modules is assigned a unique address. The assigning of addresses is carried out at one address at a time for the electronic modules.