Advertisements Something isn't right. I've used seven or eight Bolts since October 2015. I've used them in multiple locations, on multiple APC UPSs. I have never had any of the Bolts go down during a power outage while the APC UPSs were supplying power. Are these all Bolts from 2018 or later? Maybe something changed with the later Bolts? All the Bolts I used were manufactured between 2015 and 2017.