When I have had someone lose an SPD (I assume it was on DC buss) there
is often latent damage (shows up later) to many of the devices. In a Hi
Rel mode, it is recommended to replace it all. Most offgrid is not that
critical but try telling that to someone with rotten food.
The freezers and reefers are often full of spoils that smells never go
away. YUK !
Dave Angelini Offgrid Solar
"we go where powerlines don't"
[1]https://offgridsolar1.com/ [2] [1]
e-mail offgridso...@sti.net
text 209 813 0060
On 2024-08-27 1:02 pm, Ray Walters via RE-wrenches wrote:
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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