DIYBMS v4

Hi,

I have built and set up an 18S pack.

I have the DIYBMS V4s built and communicating well when they are monitoring the cells. But when the charger kicks in, the communication fails and I get a pulse of 4 green lights instead of the normal 1 green light trail. It recovers when the charging voltage is removed.

Has anyone seen this?

Youtube video link:

Taumarc