Hi all,  i am going to add another us3000c tmaking it three in total

Currently got a mersen DC Fused Disconnect rated at 80amps between battery and lynx distributor

if i connect all three together i will need to upgrade the mersen fuse but i can only find a 125 amp fuse

obviously i want to protect the batteries and cable, so is 125amp too big

 

Hi Westie

With 3 xUS3000c batteries the cable becomes the limiting factor

2) For battery system connects to inverters:
Two long power cables (current capacity 120A, constant 100A) and one communication cable for each energy storage( Pylontech manual pg 12)