APC Symmetra 12KVA Power Array

If you have a Symmetra LX then
all options for the Symmetra LX unit are

Since you were missing the batteries, you might also want to check the power modules also.

I have an older Symmetra 8Kva, with a 2nd cabinet.
In this, the battery modules are white, not stainless steel.
Inside the modules (I have 6 total) are 10 each 12v 7Ah SLA batteries, wired up as 120V DC. So now all I have to do is find a cheap deal on 60 standard SLA's.

I don't know if the newer LX or PX use the same construction inside the battery module, but it is very likely. Certainly the Symmetra RM documentation states the modules are also 120v DC.

Yes, you should be careful with all that stored power. In my experience, though, the battery modules are well built and intended to be refurbished. With care you can remove and reassemble with new SLA's.

One practical note I can pass on. Make detailed diagrams of the wiring as you take it apart. All I can say is, it's a good thing I had six of these to practice with.

Good luck.

It sounds like you had alot of experiance reverse engineering your System. Do you have the wire diagram and the Batt SLA number. I may have a good source that can help you get the batteries cheap!

Make sure you wire the battery modules properly. Not just polarity but there is a battery connection midway through the string that must done properly otherwise you will get an alarm and it will trip your system to bypass.

Good luck

Don