Your Battery Backup Might Only Be Faking It
A five-second power flicker shouldn't be able to take your business offline. Without a working battery backup, it can - and the light staying green doesn't mean the battery still works.
Five seconds is all it takes
The server restarts mid-transaction, and now the database is corrupted. The router shuts off, and the cellular failover you pay for shuts off with it - cellular backup only works if the router still has power. Cameras go dark. Access control loses power. Phones cut out. All from a power blip most people wouldn't even notice if the lights didn't flicker.
The battery that quietly stopped being enough
The other pattern we see constantly: a business installed a battery backup years ago for a router and a switch. Over time, they upgraded equipment, added a camera server, added access control - but nobody updated the UPS. A unit that used to provide 20 minutes of runtime now barely holds 3. The light is still green, so everyone assumes it's fine.
It's not fine. It just hasn't been tested.
Redundancy that doesn't grow with you
Hospitals and data centers treat power redundancy as non-negotiable - they size it, test it, and re-size it as load changes. Small businesses face the same physics at a smaller scale, but rarely think about it the same way. A UPS is bought once, plugged in, and forgotten, even as everything connected to it grows.
What's worth checking
If you're not sure whether your battery backup still works, or whether it even covers all your critical equipment now, it's worth finding out before a five-second flicker answers the question for you. That means testing actual runtime under current load - not just checking that the indicator light is green - and confirming the UPS still covers everything that's been added since it was installed.
When did you last test yours?