Most calls that begin “my UPS has failed” end with a battery, not a fault. Batteries degrade quietly for three to five years and then announce themselves all at once, usually during an outage. So the honest first step is diagnosis — and quite often the answer costs you a cartridge rather than a unit.
Check these before you call anyone
- Beeping on a brief cut, or backup time much shorter than it used to be — almost always the battery. Three to five years is a normal life, less in a warm room.
- Continuous alarm and no output — check the load first. An overloaded UPS behaves like a broken one, and a laser printer on a battery outlet is the usual culprit.
- Will not charge, or shows a battery fault — often a cartridge that has failed rather than the unit; worth confirming before replacing anything larger.
- Clicking or switching repeatedly — usually unstable mains voltage rather than a faulty UPS. That is what a stabilizer or a line-interactive unit with AVR is for.
What is worth repairing and what is not
- A unit under warranty should go through the APC warranty process, not a third-party repair — opening it can void the cover. We handle that for units bought from us.
- Out of warranty, a battery replacement is almost always worth it and is user-fittable on most Back-UPS models.
- Electronics failure on an older, small unit is usually not economic to repair against the price of a new one. We will say so rather than sell you a repair.
- On larger online units the calculation changes entirely — those are worth diagnosing properly.
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Message us on WhatsAppRequest a quote »Frequently asked questions
Why is my APC UPS beeping?
A short repeated beep on mains failure is normal — it is telling you it has taken the load. Continuous beeping usually means overload, a battery at the end of its life, or a fault. If backup time has dropped noticeably, start with the battery: use the Battery Finder to get the exact cartridge for your model.
Is it the UPS or the battery?
In most cases the battery, especially if the unit is three or more years old and the backup time has shortened. A battery is far cheaper than a unit, so it is the first thing to rule out rather than the last.
Do you repair UPS systems?
We diagnose first and tell you honestly what it needs. Under warranty we handle the APC process for units bought from us. Out of warranty, we will tell you when a repair is not worth it against a replacement rather than selling you the repair anyway.
My UPS switches to battery constantly — is it broken?
Usually not. Frequent switching normally means the incoming mains voltage is swinging outside the window the UPS accepts, which is common in parts of India. A unit with AVR, or a Line-R stabilizer alongside it, is the fix — not a repair.