Inverter/UPS Low Backup Time
A Inverter/UPS with the "Low Backup Time" fault usually shows it through the unit switches off within minutes of a power cut, backup time has dropped noticeably from when it was new, and the battery drains fast even under a light load. This is typically traced back to a battery nearing the end of its usable life, an oversized load being run on an undersized inverter, and sulfation from the battery being left uncharged for long periods. A technician resolves it by load-testing the battery against its rated capacity and advising on right-sizing the load or replacing the battery.
Symptoms
- The unit switches off within minutes of a power cut
- Backup time has dropped noticeably from when it was new
- The battery drains fast even under a light load
Likely causes
- A battery nearing the end of its usable life
- An oversized load being run on an undersized inverter
- Sulfation from the battery being left uncharged for long periods
How it's repaired
Load-testing the battery against its rated capacity and advising on right-sizing the load or replacing the battery.
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Frequently asked questions
Why is my Inverter/UPS low Backup Time?
The usual causes are a battery nearing the end of its usable life, an oversized load being run on an undersized inverter, and sulfation from the battery being left uncharged for long periods.
How is this fixed?
By load-testing the battery against its rated capacity and advising on right-sizing the load or replacing the battery.
Can this be repaired at home, or does it need the workshop?
Most cases of low Backup Time in a Inverter/UPS are fixed on-site; if bench-level work is needed, the unit can be brought to the workshop instead.
Which areas is this repair available in?
Yeshwanthpur, Mathikere, New BEL Road, Gokula, and Sanjaynagar. Call 74112 25242 to arrange a visit.
Ready to get this fixed?
Same day visits · 9:00 AM – 9:00 PM, All Days · All brands