At $159 it doesn't seem a bad deal. Nice enclosure, looks like it has a bank of 6x 950 farad caps, though the source is unknown and they may or may not have a balance circuit. Paired with what looks like a 6-7ah sealed lead acid battery like we use in our alarm panels at work. Maybe you could do a lot cheaper if you assembled yourself with parts from China, but not US sourced.
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