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APC Back-UPS rs900 Not working

New battery backup, probably been in the store for a while, however it does not power on, i connected the battery and left to charge for 24 hrs but nothing still.

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  • APC Master
  • 36,408 Answers

It could be DOA. The battery may have discharged completely and was left discharged for some time

Posted on Jul 24, 2013

  •  Sheldon Blair
    Sheldon Blair Jul 24, 2013

    I did leave it to charge over nite, should I disconnect the batteries and try with an external charger?

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5 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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IB4G2008
  • 3587 Answers

SOURCE: APC Smart-UPS 1500VA

yeppers...those APC units sometimes kick the monitoring software. sometimes you need to unhook the connection cables(like a reset) so that the firmware can 'unlock' which can cause that christmas tree effect on the panel lights.

Posted on Feb 06, 2008

ghoff1
  • 167 Answers

SOURCE: Nexxtech UPS Battery shows full charge but won't stay on

had same problem! i discovered that the unit was defective,sorry if this is the case. good luck!

Posted on Feb 13, 2009

jvpacoin
  • 91 Answers

SOURCE: Overload light in APC RS 800 UPS

it seems that the inverter circuit of your UPS is dying. the solution here is you have to open up the UPS and check the inverter circuit. to make easier, check the power mosfet if its leaking.

Posted on Aug 14, 2009

  • 355 Answers

SOURCE: All battery charge lights flash simultaneously.

THIS seems the be the answer to your question. Hope this helps

Posted on Apr 29, 2010

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1 Answer

My APC350 backup ups has a overload when power is interupted with no load connected. The unit will start beeping but does not supply battery back up. The power supply to the battery shows 14.4 volts and...


It may still be supplying power but the surge arrestors were probably damaged by the surge. Go to apc.com choose support from the menu bar, they should be able to help or maybe even replace your unit.

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1 Answer

UPS shuts off intermittently and beeps


More than likely it just needs a new battery. If the power is sagging (called a brownout) the UPS is trying to switch over to the battery to keep the power consistent. The beeping is probably a code that indicates there is an issue with low voltage on the battery. New batteries are around $20-25. Here's a link to the replacement battery: http://batteryinternational.com/apc-backups-es-be350es-ups-battery-ups-batteries-f1.html

Hope that helps.

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Back ups battery rpo1100 APC disconnects the Dell PC power button


try plugging the pc directly into the wall...if it works the UPS is defective.  You can order new batteries for the UPS online.
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1 Answer

BATTERY CHARGE


So you had the system is storage? If that is the case then it is probably time to change the battery. Storing batteries when they aren't fully charged, or in extreme temperatures can damage the battery. You can check out http://www.batteryinternational.com/ups-batteries.html for a replacement .

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UPS Switching off while working


Hi kumaraswamy5,
it seems that either the UPS is connected to an outled which isn't grounded properly or the battery inside of the UPS needs a replacement.
On APC's website you can find the compatible batteries for your device and where to order them. Replacing the batteries is very easy so don't be afraid of that!
Greetings from Germany,
noris017
PS: Please don't forget to rate this advice after you've tested it out! Thanks in advance and have a nice day!

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APC ES350 strange noise


My solution was to unplug everything, hit the reset button, and then power the unit back up. The problem I found to be that I had my laser printer connected to the "surge + battery" side, and for some reason no laser printer can be connected to it.

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Clicking


that's a sure sign that you are in low battery condition, and the inverter is approaching shutdown. You may need to either deep recharge the batteries, with NO load, or replace them completely.

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Apc surge protector and battery backups


you have to have the power rating rated in amps of the bed...if the rating of your bed and the system are same or even less than that..(i.e. the rating of television is less than that of computer monitor,so u can connect tv for long time than monitor when power goes off ) then u can surely use it.....but it ll provide the supply only till the back up is stored in the battery,when the power goes off

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APC back UPS 400 fails to give back up


I have the same problem with an apc smart-ups VS 650.

 

New batteries - charge in batteries is good (also tested under load).

 

When AC power fails, no power is supplied to PC connectors by the UPS.

 

UPS self test works fine. UPS does not report any problems via software - Power Management under Windows XP.

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