A battery management system (BMS) is the core electronic circuit of every modern Li-ion based energy storage system. It enables energy access companies to develop customised solutions including second life applications of used electric vehicle batteries, suitable for productive use appliances, mini grids, etc.
The BMS is currently under development. It will be a flexible and fully open-source design; suitable for 12V, 24V or 48V systems (up to 16 cells in series); and continuous currents of up to 100A.
It can be used in productive use appliances like milling machines; energy storage for AC mini-grid applications with up to 4 kVA inverters, and second-life batteries built e.g. from recycled EV batteries.
Libre Solar invites everyone from the Open Source and Energy Access community to provide feedback, so that they can develop the BMS in a way that suits the needs of as many future users as possible.