UPS – Dan Langille's Other Diary

Selecting replacements batteries for my Eaton 5PX UPS (5PX2200RT & 5PXEBM48RT)

Leave a Comment / UPS / By Dan Langille / November 18, 2024

Both nut and Nagios are telling me: replace my batteries. Fair enough. The UPS (5PX2200RT) and the external battery pack (5PXEBM48RT) were installed and configured with nut four years and two months ago. It’s time. Usually, I buy compatible third party batteries. Looking at video and images, I’m seeing these units use batteries in a […]

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Recalibrating an APC UPS

Leave a Comment / FreeBSD, LibreNMS, UPS / By Dan Langille / October 25, 2020

This work was done in August. Since then, I have replaced the APC with an Eaton 5PX, and I am much happier. This might make for interesting reading, but that depends on how bored you are.. Following on from my failed calibration attempts, I thought I would try it again this morning before work. In

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nut – testing shutdown and startup

6 Comments / nut, UPS / By Dan Langille / September 13, 2020

Today I tested the shutdown but was mostly concerned by the startup. I wanted the hosts to start in a specific order. I lived tweeted it and that thread is the basis for this post. The UPS has three groups of outlets: primary group, group 1, group 2. Each group has a On Delay setting.

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Monitoring your UPS using nut on FreeBSD

Leave a Comment / FreeBSD, Nagios, nrpe, nut, Open Source, UPS / By Dan Langille / September 7, 2020

It is time to replace my existing UPS with another one. I’m getting only 3 minutes of runtime with the existing batteries (and new batteries, after recalibration). It was suggested I buy an Eaton 5PX. I wasn’t convinced. This is the first of three articles about nut. The second is about testing the shutdown. The

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Unintended shutdown of the #homelab

Leave a Comment / FreeBSD, General, UPS / By Dan Langille / August 15, 2020

Today was battery replacement day at my place. The UPS batteries were replaced without downtime. That doesn’t mean there wasn’t downtime. I am not documenting this in real-time. This is post-event analysis. First, I wanted to change the battery replacement date, so I ran acptest on the pfSense server, to which the UPS is connected

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APC battery replacement

Leave a Comment / UPS / By Dan Langille / May 20, 2006

Last night I had my first battery failure. My little old APC Backups Pro 280 started complaining that I should replace the battery. Yes, I’d left the thing unplugged for a year (since BSDCan 2005). Plus the unit was about 5 or 6 years old. So it’s no wonder that the battery died. Luckily, there

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