Smart UPS 1500 - battery runtime

[jstan_apc]

Hi

I've just changed a dead battery on my UPS 1500 (driver version 2.7.4 on NAS).

It is connected to TrueNAS system.  A query [upsc jamesups] shows various information including: 

battery.charge: 100 -- I guess this is what I can expect

battery.runtime: 0 -- what does this mean?

Does this mean (a) it has been 0 minutes (is this the unit of time?) on battery? or (b) is this expected run time on battery?

If  (b) then I guess I have an issue?

I cannot find anything clear on the forums or general web. 

Advice would be much appreciated.

Thanks

[Teken]

Given this question wasn’t answered and question posed in 11/12/2023. An answer should be provided for those seeking the same.

Battery Runtime: This is the estimated runtime the unit will provide given a specific attached load.

The runtime is heavily impacted by age, condition, and temperature of the battery cell(s). The battery is rated to provide 3-5 years of service life which is based on usage, temperature, and environmental conditions.

The battery cells are rated to endure approximately 260 full cycles of full charge / depletion.