The BMS Was Supposed to Protect my Battery? . In this video I explain why your PV array voltage needs careful consideration. If your MPPT fails and the array voltage is higher than the BMS can safely handle, bye-bye batteries. https://youtu.be/CfXS-D0kH6g PLEASE HELP!  This site is 100% reader supported. My wife is urging me [...] The post Solar Array Safety appeared first on Marine How To.