Hey folks! I'm using an Intelbras UPS SNB 1500 BV, and I've got a bit of an issue. When the power goes out, the UPS kicks in just fine, but here's the catch: once the power is restored, it doesn't automatically come back on if the batteries are bad. I thought it was supposed to turn back on and let me know there was a battery issue with that annoying noise, but it just stays off. Has anyone else experienced this? That doesn't seem right to me. Thanks for your help!
4 Answers
It's not uncommon for UPS systems to need some time to stabilize after a power outage. Many UPS units won't turn on as soon as power is restored; instead, they wait until the battery reaches a certain charge level. This is to ensure that if there's another outage, the UPS has enough power to function properly. If your UPS isn't charging the batteries, it might be stuck waiting for a charge that isn't coming. You might need to look into replacing the batteries.
I've seen UPS designs where the unit just won't turn on if the battery voltage drops too low, which protects them from dangerous situations like overheating. If your batteries seem fine but the UPS still won’t power up, there could be a setting that restricts it from restarting unless the battery charge is at a certain level. You may want to check the manual for any settings regarding battery charge levels.
Sounds like you might be dealing with a hardware issue. I had something similar happen with my Tripplite UPS. Your best bet is to contact the vendor and get their support—there might be a firmware update that could help or they might recommend repair options.
Generally, better quality UPS units handle these situations better, but issues can still arise. If your setup only has a single power supply, consider using a rackmount automatic transfer switch (ATS). I've used them without any failures, but keep in mind that misconfigurations can lead to issues!
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