These are new (never been used) battery packs. They retail for several hundred dollars each, but I got them for free. I would like to do something creative and solar power project seemed to be a good application
So, if I can't use this stack of 90 batteries to power the house needs (because of the low capacity), would it be possible to use a couple of 200 Wt solar panels to charge the batteries, if I use them for their intended purpose - to back up the power of my computers/servers? Will I need an inverter to convert the voltage from the solar panels to 110V in order to charge the UPS batteries?