BATTERY MANAGEMENT SYSTEM AND MONITORING DEVICES AND COMMUNICATIONS CONTROLLERS FOR USE IN THE SAME

Communications controller (15) is provided operable to receive and process measurements of battery cells (22-1... 22-N) of a battery system received from monitoring devices (10-1... 10-N). Monitoring devices (10-1... 10-N) may each comprise: one or more sensors (31, 32, 33) operable to obtain measurements of battery cells (22-1... 22-N); transmitter (30) operable to transmit obtained measurements to communications controller (15); and processor (39, 52) operable to process obtained measurements and cause the obtained measurements to be reported to communications controller (15) in accordance with a predetermined schedule. Monitoring devices (10-1... 10-N) may be configured to report measurements in a deterministic manner which is independent of triggering of any interrupts, external memory access steps or the use of a stack.