$2 for 10 PCBs (No fee on any color): Previous video: EBike Battery Pack video: Facebook: Twitter: Support me for more videos: Websites which were shown during the video: In this episode of DIY or Buy we will be having a closer look at BMS or battery management systems. That means I will show you how a commercial BMS is built and how it functions. Afterwards I will then have a look at a DIY BMS project from Stuart Pittaway, build it and test it in order to find out whether you should stick to the commercial BMS or use a DIY one instead. Let's get started! Thanks to JLCPCB for sponsoring this video Visit to get professional PCBs for low prices Music: 2011 Lookalike by Bartlebeats Killing Time, Kevin MacLeod ( )