Question about Powercom (BNT-1500AP) UPS System

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Powercom BNT 1500AP quit working after power outage

After a short power outage (20--30 sec.) the UPS was out and would not restart. Additionally, the circuit breaker on a power strip plugged into the UPS output was tripped. I suspect there was a surge. Is there a replaceable surge module in this unit? If so, how do you get at it?

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  • copernicusdr Dec 31, 2008

    You were right, wwright. The battery voltage tested low, and after removing the cells, I saw that the cases of both batteries were ruptured (no serious leakage). The 40 Amp fuses (slow-blow, from the looks of them) on the circuit board were fine. $50 for two new cells with more Amp-hours, some screwdriver work, and the problem was solved. This is the second time I have replaced ruptured SLA batteries in a UPS unit.
    Anybody out there g

  • copernicusdr Dec 31, 2008

    Anybody out there got a hack for using standard automotive batteries with a UPS unit? Much more Amp-hours and probably more reliability at the cost of venting the batteries and keeping them upright.

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From your description it appears one or more batteries are bad..The circuit breaker on the Power Strip..which more then likely is a 15 Amp..tripped due to over current conditions..check the batteries and reset the circuit breaker..That should take care of it

Posted on Dec 31, 2008

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