Question about Belkin Enterprise (F6C1200-UNV) (F6C1200UNV) UPS System

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Need a schematic for a belkin F6C120-unv. All functions of the unit work fine other than the charging circuit won't keep the batteries charged. Runs about 24.7 volts, but keeps getting lower as the batteries run down with A/C power active. The batteries run down to 50% after 3 or 4 hours. The diagram view shows the charging circuit kicking in periodically, but the voltage is not high enough to charge. The fuses check out ok. Have tried 2 new sets of batteries. Both sets work fine in another UPS that I have. Steve

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When batteries discharge during ac power it could indicate charger failure or micro failure or some other wierdness. makers do not release cd info. The best thing is.. buy another one as they can be very difficult to repair and of course they are dangerous, batteries are always live, waiting to bite you. I have worked on and repaired such circuits as the AP 200 series resonant converter and selling and hiring UPS for a long time. Beyond the simple easy checks youhave done the time it takes to understand how they work can better be used.

Posted on Sep 23, 2009

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1 Answer

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