I tried what you said and it worked. I don’t see what the problem was in the first place though, could you explain more thoroughly?
I planned the setup so that the transformers would take 2 amps, how can anything overflow? Not to mention that the maximum output of the lightning rod is 16 amps @ 32k EU = 512k EU/t, whereas 16 EV batteries in a batbox can accept 16x16x4k EU/t = 1024k EU/t. And the 4 cables leading to the battery box support at most 32 amps each at 6144 EU, meaning 786k EU/t. The cables would melt before the input could overflow.