Support forum to share knowledge about installation and configuration of APC offers including Home Office UPS, Surge Protectors, UTS, software and services.
Search in
Improve your search experience:
Exact phrase→Use quotes " "(e.g., "error 404")
Wildcard→Use * for partial words(e.g., build*, *tion)
AND / OR→Combine keywords(e.g., login AND error, login OR sign‑in)
Keep it short→Use 2–3 relevant words, not full sentences
Filters→Narrow results by section(Knowledge Base, Users, Products)
Send a co-worker an invite to the portal.Just enter their email address and we'll connect them to register. After joining, they will belong to the same company.
You have entered an invalid email address. Please re-enter the email address.
This co-worker has already been invited to the Exchange portal. Please invite another co-worker.
Please enter email address
Send InviteCancel
Invitation Sent
Your invitation was sent.Thanks for sharing Exchange with your co-worker.
Link copied. Please paste this link to share this article on your social media post.
Posted: 2021-06-2806:45 PM. Last Modified: 2024-03-2602:57 AM
APC BackUPS 1100 suddenly off after push power on
Hi, new member here. I have APC backups 1100 since 2016. I just changed the battery yesterday, I connect it to power inlet, and let it on for 8 hrs. then I turned off the power on the night (without unplug the power). But this morning when I turned on the power again, it suddenly go to off with sound like "cklak" from circuit board (not the reset button on backside) . It always be like that. I test the battery with mutitester, and it still good (12,5V) . any idea?