Greetings All;
I have Fortress Battery installation with a pair of E Vault batteries
set up in a Master/ Slave arrangement. Its been working fine for over a
year, but the customer just had a complete shutdown of the batteries
which left multiple freezers, and refrigerator with rotting food. When
he rebooted the batteries by turning on/off the main breaker on each,
they both come up and showed 100% SOC on the Master, and 98% on the
other. There were no fault codes. I just recently installed a
larger PV array, and so the system has been reaching full charge every
morning.
I have multiple calls in to Fortress, but not hearing anything back from
them at all. We did have a lightning surge event a few months ago, that
damaged a Midnite SPD (first ever for me), and took out the control
board on the generator. One VFX inverter has an LED out, but we only
use two inverters of the Quad stack, so I just switched to another
inverter. All other equipment appeared fine: Midnite controllers, rest
of the Outback VFX quad stack, and never any issues seen with the
Fortress batteries.
The other odd thing, is since he rebooted the batteries, the system is
working fine, and recharging to 100% by 9:30 am as before. Is it
possible the Fortress BMS were damaged and are now having an
intermittent shutdown issue? I did ask him to temporarily disconnect
the comms between batteries, in case it is a bad BMS on one, it will
isolate it from the other.
This is a tough one to figure out, since it hasn't happened again, and
there are no fault codes. The Mate 3 shows a low frequency AC code, but
that's usually just from the generator shutting down. Any help,
ideas, experiences, would be greatly appreciated.
Thanks,
Ray Walters
Remote Solar
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