Question about APC Smart-UPS UPS System

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I have a back ups bn1250lcd and im not sure how to charge it it says battery is full but the load is empty do i just plug it in and let it sit 16 hours?

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Yes,

Plug it into a wall, turn the beeps to off, plug in a desk or table lamp, unplug the UPS from the wall and let it drain down to nothing with the lamp on. You may want to time this. This is how you break in a new battery too.

After its completely dead, unplug the lamp, plug it into the wall outlet and let it charge backup again.

You should not get the error message.

Now, if the error message is from your PC and you have the USB cable attached. Remove the USB cable from the UPS to the PC. using Add/Remove programs in Control Panel remove teh UPS software, have the UPS disc on hand first. Reboot. when you get your desktop, install the UPS software and do not attach the USB cable until told to do so or until the installation is complete and you have rebooted the PC. Reboot after installation whether it tells you to or not. During the system restart, plug the USB cable back in. You should be fine. If you continue to see this reporting error, download a program update for you UPS.

If you have any questions please ask using the comment box below.

Regards,
Worldvet

Posted on Jun 29, 2008

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there are 2 parts of a UPS .
the charge side
and (battery is obvious)
the inverter side.
if the charger fails, all is lost. (are the batteries in backwards?)
if the charger works (volt meter tells you that)
then the inverter is bad. (this unit is not full time UPS , but part time, this means it switches over to inverter at power fail.
(on full time sys. inverter runs full time, like the name states)
the unit, you mean the load right.?
the UPS side plugged into a load. and the load is now dead.

the Backup plugs should work if the mains are hot.
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I used to do service on HUGE UPS systems, some with 100s of batteries. 3 to 5kw too.
on ours there is a port on the rear , we connect and can
check everything "BEST brand" even charge voltage.
did you look on APC site for special software and connections?

the manual does cover trouble shooting, ever read that?
RTM? start there, its online, for sure.

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Hi, I am a licensed Master Electrician with 27 years exp.
Need more info. Did it work before? Are you positive your incoming voltage is correct? I will assume all of them things as yes and see what I can think of to fix ya up.
I would connect it to a load and let the batteries totally deplete, like a small drill or something that pulls close to the 12.5vac (1500va). Disconnect the load and unplug it for a minute, then plug it back in and then see if it charges. If it does, leave it alone til it completes charging then put a load on it. It shouldnt charge with a load on it if the battery is already fully charged. Then unplug it from the wall receptacle (main power) and see if it transfers and the batteries take over. If it does it should not charge again. A UPC should only charge when your load is being supplied by the main power, i.e., the UPS is plugged in and not transferred to the battery state.
I hope I have helped with what info I had, if not then get back with me, their are other issues, like internal fusing on the main power supply coming in as well as battery charger internal fusing. NOTE: If you ever replace an internal fuse on a UPS be absolutely sure, without a doubt that it is of the same type as in voltage, ac or dc, and most importantly the amp rating. BTW in case you didn't know, to get the amp rating of something rated in VA, as in 1500va, you divide 1500 (the va) by 120v. (supply voltage) that is assuming it is 120v. if any other voltage just adjust your divisor to match the voltage. 1500va/120v = 12.5 amps. Good luck!

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