Update 1-14-19: Pumps sold but still have two ecotech battery backups.
One of the battery backups is brand new -bought earlier this year and used for less than a month before my tank cracked and haven't used it since. The other is a little older but I tested it when I got the new one and was setting them up on my tank and it worked fine. The only thing is I'm not sure where their power supplies are...I may be able to dig them up but can't guarantee it as my house is chaotic with construction atm, so as is now they are to be sold without power supplies...I would just get a comparable replacement online (they're under $10) and not the expensive one from ecotech -I do have the wires to connect to the pumps though
$120 for the new battery backup and $90 for the old