$Implementation of a Coulomb counting algorithm for SOC estimation of Li-Ion battery for multimedia applications

Lithium-Ion based batteries are quite popular thanks to their good electrical characteristics but they risk to be damaged when they are overcharged or deeply discharged. In order to avoid these problems, Lithium-Ion batteries require an accurate state of charge determination to extend their lifetime and hence protect the equipment they supply. In this paper we propose a solution based on an enhanced Coulomb counting method which we have implemented on a hardware platform based on the PIC18F MCU Family. The results are promising. The proposed system is supported by IntelliBatteries and integrated on its products.