Michael K Johnson's Post

@ai6yr @toroidalcore The Dell/APC was probably about 5 years old when I got it... 12 years ago? And I decommissioned it just a few months ago. The re-used AGM batteries I had connected it to were running out of life. So yeah I get it! ☺

The original APC non-rebadged version of my old UPS was a DC unit and had the button to select sensitivity. I assume Dell had it cut as part of their usual BOM-cost-trimming exercises; the case still had the hole where a button would otherwise have been. So there's definitely old DC APC hardware out there with a white button that can cycle through sensitivity settings.