Fast, high accuracy, freely programmable single cell battery measurement system

Batteries are the most practical energy storage for mobile electrical devices. Aiming for more efficient battery systems results in new challenges for developers and scientists. Equipping a mobile device with an adequate battery typically requires an accurate model about the battery´s behavior. To establish good models, precision measurements are necessary. In this paper we describe the development and evaluation of a fast, highly accurate and freely programmable battery measurement system. The system consists of a current source which can sink and source currents up to 32 A in a frequency range from DC to 20 kHz, combined with a high resolution measurement of current, voltage and temperature.