Re: Cyberpower PR1500 won't charge battery

Problem solved. I had four PR2000s (two new; two "refurbished" - new batteries; untested; neither charging the batteries). In one, I replaced the capacitor-most-likely-to fail and got a second three years out of it. On the others, I changed the five caps identified here. Most never revived; all were dead by about six years. Changing those capacitors didn't help.

After speaking with the guy with the server farm in his house and many APC UPSes (the oldest of which is 21 years old), I bought a refurbished APC commercial...

Re: Cyberpower PR1500 won't charge battery

So, what, exactly, is the purpose of a UPS? People use them to provide reliable power to things like computers that have uptimes of 25 years. If your electronic device has a very short life because of internal heat, maybe it needs better cooling. If it's designed with a critical component that will fail so quickly that the device won't outlast its batteries, maybe the component should be in a socket so it's easy to replace. [Or, maybe it should be like a "Flashcube" that rotates as each flashbulb is used up, sliding the next one...

Re: Cyberpower PR1500 won't charge battery

Another update. I last posted in 2016 about reviving my second PR2200 by replacing C40. [Replacing the five "usual-suspect" capacitors in my first PR2200 didn't fix it.] {I picked up two supposedly refurbished PR2200s on eBay; both defective, but with new batteries. Got a refund.} My second PR2200 failed again a few months ago. I dug out the extra capacitors that I bought in 2016; if it doesn't work, these things deserve to be recycled. These things should NOT have to be repaired every five years. The charging circuit doesn't...

Re: Cyberpower PR1500 won't charge battery

UPDATE: The second PR2200, which I bought when the first one died, died a couple of weeks ago. [Same symptoms; batteries discharging (without my noticing); power failure; after power back, unit dead.]

So, this time, I changed only C40 and charged the batteries on the car battery charger.

Started it up. No load. Charge indicator on start-up was three green lights out of four.

After a couple of hours, the fourth charge light came on. Charging circuit seems to be working again. [Thanks, budm.]
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Re: Cyberpower PR1500 won't charge battery

The batteries are new - and the voltage for the four batteries at the UPS is about 50V (with the UPS plugged in or not).

Re: Cyberpower PR1500 won't charge battery - Still a potato

Still a potato (doorstop).

I replaced the capacitors (C40, C44, C45, and C47) and put in fresh batteries - in my PR2200.

When I turn it on, one beep, all lights except wiring fault come on, then blink off twice, on for a second or so, the fan comes on (and the lights flicker a bit). Then, they all go out, and the fan goes off. Repeats indefinitely. Unplugging it while it's doing this causes all of the lights to go out, but the fan to run steadily.

Haven't figured out if it's...

Re: Cyberpower PR1500 won't charge battery

Somebody posted a request for (I assume) DigiKey/Mouser catalogue or Panasonic part numbers for the capacitors. Seems like a good idea, with lots of people with the same problem. It's been years since I've ordered a capacitor; took me quite a while to figure out which capacitors Panasonic FMs (and FC, etc.) are.

I have a PR2200 with the same problem. Called CyberPower; they said it's the batteries, so I bought new ones and then noticed no charging. (CyberPower also told me that there is no service manual; recent search found...

Re: Cyberpower PR1500 won't charge battery

Somebody posted a request for (I assume) DigiKey/Mouser catalogue or Panasonic part numbers for the capacitors. Seems like a good idea, with lots of people with the same problem. It's been years since I've ordered a capacitor; took me quite a while to figure out which capacitors Panasonic FMs (and FC, etc.) are.

I have a PR2200 with the same problem. Called CyberPower; they said it's the batteries, so I bought new ones and then noticed no charging. (CyberPower also told me that there is no service manual; recent search found...