BMS has arrived from China. They sent a 16s/60v unit when what we need is a 12s/48v according to vendor. Also I believe that the first and second gen leaf batteries have different compositions.

– 1st gen: (LMO) Lithium magnesium Oxide.
– 2nd gen: (NMC) Lithium Nickel Colbalt Magnesium Oxide

We asked the vendor if this BMS would work with our NMC cells, but this was not so. They were optimised for LMO.

This BMS will not work so it must go back. Looks nice but needs to go back to China immediately. Looks like another wait.