4 Kw system with dual 6600 magnum battery back up low battery fault
Hello, my 4 kw system with dual 6600 magnum battery back up system keeps showing a low battery fault when I run an grid power loss test. The entire system is less than one year old. We had a recent power loss and the battery backup failed. I contacted a tech at magnum, we went through and reset the settings on the router. Everything is working normal until a grid power loss. then the inverter comes on for about 3 minutes and faults out on a low battery shut down. This morning I isolated the sub panel and cut the grid power, the inverter came on but showed a constant battery drain. I then turned on one breaker in the sub panel and volts went below 48 and the inverter shut down. When I brought grid power back on the router went to surge charge for 2 hours and then to float. Any ideas what could be the problem. How far is away from the inverter can you place the battery cabinet? mine is about 20 feet.
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