APCsrt10krmxlt plus expansion Unit. Needs new batteries
$500 for both units unless you want to pay more. ( they sell for $13,000 new, so I am selling for 96% off)
cash only
it requires a power out 220v 60 or 70 amps. - See the spec sheets in the links I have supplied.
The battery's probably should be replaced for max life.
Battery replacement cost is between $300 to $600 per unit
208 to 240 volts
srt10krmxlt 6U rack mountable. the rails included 1192 w
weight with batteries installed 250 lbs. 80 lbs with them removed
specs are available at
https://www.apc.com/us/en/product/SRT10KRMXLT/apc-smartups-online-10kva-10kw-rackmount-6u-208v-4x-l620r+2x-l630r-nema-outlets-network-card+smartslot-extended-runtime-w-rail-kit/