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Temperature sensors are required on type certified aircraft that employ nickel cadmium aircraft batteries for starting engines or auxiliary power units to comply with the requirements stated in FAR 23.1353, 25.1353, 27.1353, and 29.1353.
The purpose of the Concorde aircraft battery temperature sensor is to make a Concorde Valve Regulated Lead Acid battery fully compatible with aircraft systems required for the temperature monitoring of Nickel Cadmium batteries.
