I have just added the NUT addin on Home Assistant and connected it directly to my Ablerex UPS using a USB cable. While the specific model (VT-PRO1000) 600W does not exist in the supported devices list, i used the nutdrv_qx driver and got many entities through the integration, the battery runtime sensor is missing.
Although i have seen a lot of posts saying you can add the rutimecalc argument in your ups configuration, i cannot for the life of me figure out how.
I don’t know the answer, but a little familiar with NUT, so I’ll try to help.
Googling around I found this particular configuration for a NUT server running on Linux:
nano /etc/nut/ups.conf
[powerwalker]
driver = blazer_usb
port = auto
runtimecal = 486,100,1296,50
Thank you so much for replying. I managed to find this after a tone of digging, but the documents don’t show specifically how to do it for home assistant. It works the way i showed above but i don’t understand how will it show the remaining time based on the load?