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Ups not charging the battery

Ups not charging the battery

My ups is not charging. The problem is not of battery, what else should I check in the circuit.

Asked by: Guest | Views: 272
Total answers/comments: 6
Guest [Entry]

These things usually have two batteries and usually one will fail before the other. Look at the diagnostics lights on it and tell us what you see.
Guest [Entry]

I have the same issue. CyberPower replaced my battery because I thought that was initially the problem. The replacement battery came charged, but ran down and isn't charging. It seems like the unit itself isn't charging the batteries.
Guest [Entry]

"I have a similar problem with my CyberPower UPS (model CP1000PFCLCD). It seems the only time it will charge the battery is immediately after a selftest; it charges the battery to full after a selftest but then it ridiculously thinks the battery stays fully charged while the battery actually gradually loses its charge (which will eventually destroy the battery if it’s allowed to discharge too far). The reason I believe the UPS hasn’t been keeping the battery charged is that the selftest reduces the reported battery charge from 100% to about 65% in a few seconds, and then it takes hours of charging before the UPS software (CyberPower PowerPanel Personal v2.2.0) reports the battery is again at 100%.

So, for awhile it was possible to maintain a charge by periodically performing a UPS selftest. I’ve been doing a selftest about once per month.

However, recently the UPS developed a second problem that magnifies the first: During the selftest, the pc “loses communication” with the UPS (connected via usb port), the software doesn’t indicate the selftest has completed, and the UPS seems like it remains in battery mode… its internal fan doesn’t stop spinning, as if it isn’t cooling down and is continuing to drain the battery. To protect the battery from being drained so far that the battery is damaged, and to protect my pc from losing power and crashing, I respond by quickly shutting down the pc, then shut off and restart the UPS, and then restart the pc. After startup the UPS software reports the selftest was passed, but given the circumstances I don’t have confidence that that report is valid. The software also reports the battery is fully charged, which is implausible since I know from experience that it takes hours to reach full charge after a selftest. My hunch is that the battery is now never being charged and will eventually be permanently damaged.

I replaced the battery in the fall of 2019 because the original battery died. Perhaps the original battery would still be okay if the UPS had kept it charged."
Guest [Entry]

"To test your unit charging capabilities, you can unplug your battery pack and put a DVOM on the outputs. You should see 24V+.

I as well have a Cyberpower, a couple of them actually. Batteries are dead but the unit says fully charged. Even with the batteries pulled out. I'm converting mine into solar generators, but I'm glad I tested these units out without plugging in expensive electronics. You know, the ones they're supposed to help save."
Guest [Entry]

If the UPS is not charging the battery,They should check the battery connection,Integrity of the battery and Battery charger. Saheed Adeosun
Guest [Entry]

"My mom is having similar trouble with her APC XS 1000 unit, battery is actually 3/4 full when unit is unplugged from the wall and still provides power to computer. Checked circuit breaker on the unit and that of the power strip, all good. All unit vitals look fine aside from showing 0% battery life when plugged in and hearing constant yet intermittent chirps from the APC unit.

I’m personally thinking this is a self test issue where the unit does not detect a successful switch over to battery usage before it switches back to normal mode. Therefore the battery is fine, but there is a failure in the self test or part of that may be the charging system that does not allow the unit to attempt to continue, be this by design I don’t know yet as I’m still researching.

Chances are internal hardware failure and requires replacement of the entire unit, one positive note, since the battery is probably still good you can swap it out and reserve the newer battery for later use.

I’m no APC Guru but I’ve been using these UPS backups for decades and while not having many problems with them I have indeed experienced a few."