atlsolar
New Member
I just purchased two EG4 12000xp inverters and five of the Ruixu 16kwh batteries. I was expecting to be able to use their bus bar, the RX9MP. But in my head, I was going to use it in reverse of how they expected. The batteries come with one set of 1/0 cables, one end is the quick connect for the battery, and the other is to bolt onto a lug. They sell "paralleling" cables which are quick connect to quick connect, so you can plug 4 batteries into one bus bar.
I planned to flip it around, use the cables that come with the batteries to connect quick connect to battery and lug to bolt in the bus bar. Then, I thought I'd buy the $25 quick connect adapter and attach to my own cable, so bus bar quick connect to inverter. So 5x batteries to lugs, 2x cables from each bus bar using the 4x quick connect slots to each battery
Looking closer, the EG4 inverters need 2x 2/0 for each + and -, or 1x 4/0. The quick connect adapter is 1/0.
Long story short, what is the best way for me to get this accomplished? Maybe just buy one 9x (or larger) lug bus bar? If so, what is the amperage capacity I'd need on the bus bar or how can I calculate that? Or, do I just not need the inverters in parallel and just separate them, 1 inverter to 2 batteries, 1 to the remaining 3, each battery set in parallel only with those to its inverter?
I reached out to Ruixu, but so far, they've only give me reasons why my ideas won't work but haven't provided me with options to solve.
Below is my overall plan. Do I lose anything by removing communication between the inverters? If it matters here, I currently don't have plans to add solar to this. It's mostly for backup and TOU load shifting. I may add solar down the road, but it will be fairly limited due to trees blocking any decent sun. Could end up with like 4kw - 8kw down the road.
Separately, I purchased the inverters/batteries from Renewable Outdoors who told me that the 2x inverter/5x battery would not be a performance or load balancing concern. Ruixu is telling me otherwise, but I think they are telling me that because of the bus bar issue, not an actual requirement to have even numbers of batteries. Can't tell. Anyone have input here?
Thanks, again.
I planned to flip it around, use the cables that come with the batteries to connect quick connect to battery and lug to bolt in the bus bar. Then, I thought I'd buy the $25 quick connect adapter and attach to my own cable, so bus bar quick connect to inverter. So 5x batteries to lugs, 2x cables from each bus bar using the 4x quick connect slots to each battery
Looking closer, the EG4 inverters need 2x 2/0 for each + and -, or 1x 4/0. The quick connect adapter is 1/0.
Long story short, what is the best way for me to get this accomplished? Maybe just buy one 9x (or larger) lug bus bar? If so, what is the amperage capacity I'd need on the bus bar or how can I calculate that? Or, do I just not need the inverters in parallel and just separate them, 1 inverter to 2 batteries, 1 to the remaining 3, each battery set in parallel only with those to its inverter?
I reached out to Ruixu, but so far, they've only give me reasons why my ideas won't work but haven't provided me with options to solve.
Below is my overall plan. Do I lose anything by removing communication between the inverters? If it matters here, I currently don't have plans to add solar to this. It's mostly for backup and TOU load shifting. I may add solar down the road, but it will be fairly limited due to trees blocking any decent sun. Could end up with like 4kw - 8kw down the road.
Separately, I purchased the inverters/batteries from Renewable Outdoors who told me that the 2x inverter/5x battery would not be a performance or load balancing concern. Ruixu is telling me otherwise, but I think they are telling me that because of the bus bar issue, not an actual requirement to have even numbers of batteries. Can't tell. Anyone have input here?
Thanks, again.
