A battery monitoring device of a battery pack configured for powering a cordless power tool may include an integrated circuit connected to a microprocessor of the pack that is external to the integrated circuit, and which is connected to each of N battery cells of the pack. The integrated circuit may...http://www.google.fr/patents/US7417405?utm_source=gb-gplus-shareBrevet US7417405 - Battery monitoring arrangement having an integrated circuit with logic controller in a battery pack
Battery monitoring arrangement having an integrated circuit with logic ...