Brand new install. 4x12v lifepo4 each bank of 2 wired in series and paralleled through bus bars. First bank operates and balances flawlessly. 2nd bank, when connected in series, one battery shows continuity between pos and negative posts. When disconnected from series, no continuity. When in charge mode from mp2 24/3000, battery in question does not receive charge voltage, other in series jumps to 15v and warms up.
I currently have the BMS on standby and this series disconnected. I'm stumped.
