[Nut-upsuser] why did self test warn?

[James]

On 2019-02-16 1:58 p.m., Stuart D. Gathman wrote:

> That fluctuating runtime sounds suspicious - although the load is also
> fluctuating between 32 and 28 in your examples.
The runtime said 13 minutes in NUT-Monitor and then when I changed the 
LCD on the from of the UPS to display the estimated runtime, the display 
said 19 and NUT-Monitor changed immediately to 19 minutes.
Maybe the UPS is not updating the values that NUT reads very often?