As solar panels and other distributed power-generating technologies become more common, there is growing demand for batteries that can store power for later consumption. In an August 2014 post, I wrote about the use of the Axiomtek ICO300 system as an IoT home battery controller. Since that post, this controller has become a key part of batteries used in commercial and industrial buildings to store energy generated by alternative energy sources. This use model includes factories, warehouses, and other buildings adding solar panels to reduce their energy costs.