  Wireless Battery Management Systems (BMS) are increasingly being considered
for modern applications. The ever-increasing complexity and production costs of
BMS modules and wired connections resulted in a necessity for new ideas and
approaches. Despite this growing trend, there is a lack of generic solutions
focused on battery cells' sensor readout, where wireless communication allows
for a more flexible and cost-efficient sensor installation in battery packs.
Many wireless technologies, such as those that use the 2.4 GHz frequency band,
suffer from interference and other limitations. In this article, we present an
alternative approach to communication in BMS that relies on the use of Near
Field Communication (NFC) technology for battery sensor readouts. As an answer
to the rising concern over the counterfeited battery packs, we consider an
authentication schema for battery pack validation. We further consider security
measures for the processed and stored BMS status data. To show that a general
BMS application can make use of our design, we implement a BMS demonstrator
using the targeted components. We further test the demonstrator on the
technical and functional level, by also performing evaluation on its
performance, energy usage, and a security threat model.
