Important Announcement: Community Back to Full Functionality
Dear Members, we are thrilled to announce that our Community is back to full functionality and that posts publication is now enabled again! We appreciate your patience during the last weeks. Learn more about our Community Guidelines. Thank you, Schneider Electric Community Team.
APC UPS Data Center & Enterprise Solutions Forum
Schneider, APC support forum to share knowledge about installation and configuration for Data Center and Business Power UPSs, Accessories, Software, Services.
Link copied. Please paste this link to share this article on your social media post.
Posted: 2021-06-2605:39 AM
This was originally posted on APC forums on 7/19/2012
We just replaced batteries for SILCON40KH UPS with EXTERNAL BATTERIES ( 2 x 32 Blocks of 12V/45AH). After, the starting up normally, the unit intermittently goes to Internal Bypass, please advise. Charging Voltage is 399VDC but Alarm indicates Battery Failure. The replaced battery banks measured at 404VDC and 403VDC respectively, so we are surprised why UPS indicates Battery Failure. We checked Battery Fuses and MCCB and they are all OK. One more thing, we noticed charging current randomly fluctuates from 5A to 0A, not stable considering these are newly replaced fresh batteries.