Here's what I got so far. Glad I didn't wait on buying this setup to use as soon as it got here. So Far no luck with battery communication at all. If U got 1 of these free server racks like I did please watch this video . I will show how poorly the bolts to bus bar install is as I did i tried to remove the bigger bolts. This was unbelievable it is obvious no one is looking at these things & making sure they are safe. U have to watch this to believe it. If I sound a bit disgusted I am. This is amazing to me they would build something so dangerous. What the hell only potentially up to 600 amps shorting out, no big deal right? BE SAFE.