APC 1500 UPS Out of Box Doesnt Power On

[Anonymous user]

Hello All.  I've had three APC 1500 UPS now straight out of the box not power on (do not even hear any humming while off, but connected to power outlet).  They were all tested per their tag in 2011.  The UPS have been in our cooled/heated storage for a year or more as we got them unopened from another organization.  So, am I missing something?  All I do is connect the front yellow connector to the battery tray and plug in UPS to outlet correct? 

[wayne_i_apc · Accepted solution]

Any lead-acid battery (the type usually used in a UPS) that's been just sitting, since 2011, is virtually guaranteed to be a candidate for recycling, as in completely discharged and totally unable to be recharged. Even when not being used, these batteries should be fully recharged every 6 months or so to avoid degradation. Additionally, though I'm not certain about this model, many UPSs require a battery with at least a minimal charge (something like 10.5 volts or more per battery) to power-on, and while a UPS with discharged but otherwise healthy batteries should recharge their batteries when connected to utility power to the point that they will power-on and operate normally after a short time (likely less than 1-2 hours).