Write by Andrew Metcalfe Georgia, United States
Well, a few posts up from here I asked if everyone was still happy. I ordered, received, installed... and I too am very happy with the 10-rack Ruixu battery rack.
It shipped Fedex freight, arrived in suburban Atlanta in about a week. VERY HEAVY. Very fortunate that my basement had a side-door, so I could wheel everything around on a handcard, one at a time. The 10-rack cabinet is very difficult to move around.
When loaded, the cabinet is very heavy. It's on wheels, but they move very slowly from the very heavy weight. However, the cabinet is well-built, and strong. Assembly is... challenging because the batteries are each very heavy.
Funny story, this is my first time working with server-rack batteries. Previously when watching Youtubers like Will using the hydraulic lift table with these batteries, I'd dismiss the youtuber as clearly not very strong... those batteries can't possibly be that heavy....? Well, it turns out they are that heavy, and a hydraulic lift table would have been helpful. Or a strong pair of teenagers. But I'm 50 years old, so I nominated my wife to help. We got it done, two people to lift each battery. Server-rack batteries are heavy.
Anyways, the cabinet is great. No concerns, even loaded with 10 batteries.
For safety, I added a 200-amp MRBF to every cell, and added a 350a class-T fuse to the entire rack.
It integrated to the Sol-Ark 15K easily. Closed-loop communications works great. So far, charging-wise, with 10kw of solar, I'm raising the SOC from 30% -> 70% each day, in Atlanta in June, while also running two 3-ton Air-conditioners. Wired with a single 4/0 cable to the Sol-Ark, with a Homegrid Bus-Bar on the inverter terminals.
For Testing I charged to 100%, then turned off my solar at midnight. I then ran a normal day with my 2 3-ton air-conditioners, normal living, normal lights, even ran the electric clothes dryer once. At 11:15pm SOC hit 20%, and I enabled overnight charging. So far I haven't yet taken it below 20% SOC.
Is it still recommended to test batteries all the way to Zero? I'm too timid right now.
