Re: UPS workaround?

On 6/14/26 14:28, Jeffrey Walton wrote:
> On Sun, Jun 14, 2026 at 12:42 PM Eben King <[email protected]> wrote:
>>
>> On 6/14/26 10:07, John Hasler wrote:
>>> Before you replace it open it up and reseat and retighten all the
>>> connections (especially the battery terminals).
>>
>> Did that. I disconnected them all, checked the battery voltages (13.4
>> and something else reasonable), and checked the 60A fuse between them.
>> It's a weird fault, that it goes instantly from completely normal to bad.
> 
> I don't think it goes from normal to bad.

There's a small tick like a relay flipping, and on the display the bar 
graph that indicates battery charge goes from full to empty with a 
flashing inverse X by it.  That looks bad.  Occasionally it goes back to 
having batteries the same way, but not often.

> Maybe reset the battery health or calibration that estimates health?
> Use something like upsrw from <https://networkupstools.org/>. Or
> search for "ups reset battery calibration linux".
upsrw(1) says I need

   <ups>         UPS identifier - <upsname>[@<hostname>[:<port>]]

How do I know what my UPS name is?