20 Most Recent APC BE500U ES 500 USB BACK-UPS 500VA/300W 120V (NEWITEM13161417) UPS System Questions & Answers

the chirp means a power event has occurred and the unit needs reset to continue operation , power events can be a few things ( to large a current was applied as a load to it , the power stayed off till battery failed and it had to charge it back up when power comes back on )

Check the battery fuses, and that the UPS actually charges the batteries.

Need new batteries probably as batteries may have developed high internal resistance. Test the batteries one at a time whether they would light up a car headlamp bulb.

Hi, Sounds like it could be a bad battery connection or the unit is damaged at the internal components level - probably the charging inverter. You can replace your UPS using APC's Trade-UPS Program: http://buy.apc.com/commerce/storefronts/tradeups/tradein.aspx?storefrontcode=apcetu&countrycode=us&languagecode=en&tradeups_id= Make sure to pay attention to the country/region before you start filling out your information -- the link send you to the USA country. We also sell them -- the direct replacement unit is a BK500BLK.... $116.70 your price not including shipping. We ship anywhere in the USA. If you need UPS, Surge, or Power Related help contact: Daniel ([email protected]) with Power & Systems Innovations 800.260.2259 or go to our website: http://psihq.com/ •• If this helped - click YES :) ••

Hi Lasantha, Check the battery in your UPS - it's most likely going bad and you will need to replace it. If you need UPS, Surge, or Power Related help contact Daniel @ Power & Systems Innovations 800.260.2259 or go to our website: http://psihq.com/ ** If this helped - Give it a Thumbs Up :) **

APC 500VA ups meant for 1 Desktop and one montiro it will have battery backup for 10 to 15 minutes for the above.

Normally, You should make the raw power connected to UPS should be always ON.

The power cables of CPU and Monitor is connected with UPS. When not in use, please press the Button available on the UPS.

The UPS Life is normally 2 to 3 Years only. Now you are getting the sound and Red Light will always blink and not allow to use the system.

Better replace the 12 Vols battery to get some more life for the UPS.

And check for any loose connection of the power cables connected with Raw Power and UPS System.

short circuit may be happen to your UPS. try to open your UPS and look for the short circuit or try to call a electronics service technician... :))

check your UPS charging circuit

For BE500 the switch is a common problem, try to check the switch first, then the battery.

Get APC Powerchute Personal Edition for free and run it. If it says your battery isnt charged, check its voltage disconnected. Charge it with a car battery charger and see if its still a good battery. If not , replace it. If the battery is good, then check the charging voltage. Should be about 14 volts. if not, check the small transformer on the main board. Should be 120 in and 17 to 18 out. 4 diodes in a bridge for charge. The input to the transf has small fuse into it alone.