Question about APC (BE500U-WEB) (BE500UWEB) UPS System
I bought an APC UPS (350 ES) on ebay - seller says the battery was good. However, when I pull the plug, I get no battery power. The plugs get ~118 when the unit is plugged into the wall. When I pull the plug, it immediately drops to 0.
When I pull the battery out, it reads 11.5V, and when I plug the unit into the wall and test the two leads which attach to the battery, I'm reading 14V.
I'm moderately comfortable messing with electricity and the sort, so I'm not afraid to break this open and take a look inside, but I don't know what to look for that might cause this problem.
As best I can tell, it woudl seem that the battery is holding a charge - and is charging correctly - but when the power goes off, it's not switching to battery power.
Occasionally when I plut the backup into the wall the power light flashes and the unit emits a non-stop beep. I think I read somewhere that it's saying the battery is dead and should be replaced, though the electrical tester would seem to suggest that diagnosis is incorrect?
I only paid $9 for it, so if it's dead, it's not the end of the world, but it'd be nice to get my satellite receivers on battery backup for the occasional power glitch that we get here (they're pretty infrequent, but my silly receivers take 10+ minutes to reboot, so I'd like to get this worked out).
>> I'm having the same problem with mine. I get 122 volts when plugged
into the wall, and it tells me that I get less than 1 min of use once I
unplug, and it actually lasts for 10 seconds before getting a
The screeching sound is normal. Its telling you "HEY, I HAVE NO POWER. THIS IS A PROBLEM." and trying to attract as much attention as possible. It will also do that if you run a self test with the software and the test fails.
Its been a while since I worked on these during an outage, but I believe there is a way to use the software (PowerChute business edition, if you're using a SmartUPS. There is a personal version with less features for other home models) to silence the alarm. I think some of them had a button you could push on the unit to silence it as well, but look this up first. Push the wrong one and it powers everything down.
Posted on Apr 29, 2009
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Jan 04, 2013 | APC BE500U ES 500 USB BACK-UPS 500VA/300W...
Aug 27, 2011 | APC Back-UPS ES 350 - UPS ( external ) -...
Jun 25, 2010 | APC Back-UPS ES 350 - UPS ( external ) -...
Apr 14, 2010 | APC Back-UPS ES 350 - UPS ( external ) -...
Jan 21, 2010 | APC Back-UPS ES 350 - UPS ( external ) -...
Oct 06, 2009 | APC Back-UPS ES 350 - UPS ( external ) -...
Aug 08, 2009 | APC Back-UPS ES 350 UPS System
May 27, 2009 | APC Back-UPS ES 350 - UPS ( external ) -...
Sep 28, 2008 | APC Back-UPS ES 350 - UPS ( external ) -...
Jan 05, 2011 | APC (BE500U-WEB) (BE500UWEB) UPS System
763 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: