We recently added a 4th battery to expand our existing 3-battery bank (Victron NG 200Ah 12.8V), which we installed about two months ago.
Due to supply shortages in Europe, we had to source the additional battery from a different supplier (TradeInn).
However, the new battery looks slightly different from the others—it has a black knob on the top (see photos), which I haven’t seen before. This raised some concern about whether it could be a counterfeit unit.
Has anyone come across this variation before? Any input would be appreciated.
I have and it shows up as an official battery, but copying the printed serial number from a genuine one is easy so do not fully trust this.
I did some googling and found one other thread with this black nobb, it might be a safety vent, but I would have expected Victron to communicate beforehand if they add a vent to their battery…
