Hi!
I have a Back-UPS Pro 550. After replacing the battery, I realised that my unit was not charging the battery anymore when powered ON. Tests I have conducted so far:
Based on the above it seems to indicate that charging circuit is OK, but it might be a SW issue or some failing sensor that cuts battery charging ? Is there any reset function or FW update that I could apply ? Anything else I could check / do to fix it ?
The unit is around 5 years old so not covered by warranty but still not that old :-)
Thanks
Hi,
You can try and brain dead the UPS to reset it.
See Schneider Electric FAQ FA158947 for instruction.
the basic troubleshooting steps for the APC Back-UPS Pro with ... The Back-UPS is not connected to AC power, there is no AC power ... The battery will not charge if the temperature is over 50 degrees Celsius
On 11/19/2020 12:19 PM, Bill said: You can try and brain dead the UPS to reset it.
Hi, thanks for the replies. I did try a brain dead reset + another type of reset I find on the internet, no success.
After opening the device I located a bad capacitor (see picture).
After replacing it, the charging process of the Battery is working again!
Thanks for the quick answers and the help.
I have the same problem with this model.
APC wont do anything. It seems to be a problem with this model.
I will give a try to search for the capacitor. Thx for the input.
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