https://www.neowin.net/news/beware-your-cyberpower-ups-with-yellow-glue-inside-could-burn-up/
..if you happen to own one or more CP1350PFCLCD and CP1500PFCLCD UPS, then you should start exercising caution in case your unit is an old one.
According to reports online from users and alike, these UPSs seemingly have a tendency to burn up making them major fire hazard in case someone isn’t careful.
The CP1350PFCLCD and CP1500PFCLCD, the rev 1 and rev 2 variants, seem to house this yellow glue inside them as the primary adhesive. While using yellow glue is a common practice in the electronics industry, often used in audio components, among others, it is said to become partially conductive as it gets to older brownish form. So essentially, any such product of yours that houses such an adhesive is potential fire hazard. But of course, it will also depend on the temperatures…