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lj_robins lj_robins is offline
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Default Belkin F5C520 UPS...

lj_robins wrote:
lj_robins wrote:
Jerry G. wrote:
Firstly, Belkin like the rest of them, will not give out any
schematics or service information.

Before you tear in to the UPS, put on a new set of batteries! The
chargers in these are a pulse charge system with a very sophisticated
load sensing. If the battery is slightly out of spec for the charger,
it will not charge the battery.

I have some Belkin and APC UPS's in our place, and they all do the
same effect that you are describing when the batteries have to be
changed.


Thanks for the reply.

I never would have even opened mine but the "Check Battery" light
wasn't on and it wasn't putting out the correct voltage like my other
two UPS' do so I figured it was just a low output voltage problem.
Guess I learned something new today.

There is a local place that I get UPS batteries from, not sure if they
are open tomorrow or Tuesday due to the holiday, either way I left a
message on their voice mail to call me, if its cost effective I will
get a new battery for it if not its various parts will be recycled and
the battery hauled to the hazmat dump which luckily is only three
miles from my house.


-Landon


Well, the battery was only $22 so I went ahead and bought it, could have
bought it for $19 online but the shipping probably would have killed the
$3 savings.

But anyway... the unit has been charging for over 24 hours I have
nothing plugged into the UPS outlets, right after I unplug the cord from
the wall the voltage instantly drops from 122 VAC to 102 VAC and then it
starts beeping and the voltage starts slowly dropping like it is
supposed to. The user manual says that the output is supposed to be 120
volts +/- 5%

Also, if I disconnect the battery from the wires the battery is reading
14 volts, and oddly the "On Battery" light is on even when it is
charging. And finally, the output voltage now stays at 14 volts without
the battery being plugged in.


Any suggestions?


Well, this UPS has taken a turn for the weird...

Found out that if I plug a PC into it (just the PC not the monitor) the
output voltage will go up from 102 volts to 118 volts AC, which was
close enough to 120 that I figured it would be ok. Then I plugged
another PC into it and the voltage wavered for a moment or two then shot
up to 130 volts.

Sounds like a regulator has gone out, I'm almost wondering if this has
anything to do with that LM317 I originally mentioned in my first posting.