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Im facing a peculiar problem with my Ups. I have numeric Digital 600 EX since a year.I am getting backup for just 4 min,and shuts down immediately.. I got it serviced,and checked once at the service office.It gave backup for 20 min.When i returned to my home and checked again. But it still gives 4min backup. Vexed up with my ups. I have an earthend socket nd 15"lcd monitor. Please help m

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  • Computers & ... Master
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Have you replaced the battery and made sure only items with critical memory are connected to it.

Posted on Aug 12, 2017

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Posted on Jan 02, 2017

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hotratchet
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SOURCE: The ups is shutting down immediatly ,once the AC power is off

thats a dead UPS... battery is bad now... you probably need to have it changed...

Posted on Jul 09, 2009

adnanbhatti
  • 1188 Answers

SOURCE: Batteries ate not charging.

First suspect the battery. As I guide I have split the task into the following steps.

1. Get a voltmeter and test the battery. It should report 12.4 or 12.6 volts. Branded batteries frequently incorporate a battery status indicator in the form of a watch glass at the top. The color change indicates the battery condition.

2. Now connect the battery with the UPS leads securely and plug into AC mains (with electricty). Test the battery terminals for voltage. If voltage is between 13 to 14.5 volts then the charger is OK. If not then check if the fuse with the DC charger is blown. With the battery disconnected check voltage between leads. It should be zero (if it showed zero volts with battery connected). If not then the charger is faulty. Also if it shows 13 - 14.5 volts with battery connected and disconnected then it is OK.

3. Re-check for any blown internal fuses.

Posted on Aug 11, 2009

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