Power management electronics perform more than just basic safety functionality; they can maximize the performance of a design from several perspectives. This white paper will cover typical battery consideration requirements including basic cell protection to advanced fuel gauging, communication options, cell balancing, diagnostics and warranty data, and using super capacitors and batteries together. This paper will also discuss considerations for the host device side including system/device-side fuel gauging, power architecture, authentication and power conversion. Lastly, charger considerations including contact-less wireless charging and adaptive charging techniques are outlined.