UPS – Dan Langille's Other Diary

Replacing batteries Eaton 5PX – 5PX2200RT & 5PXEBM48RT

Leave a Comment / Eaton, UPS / By Dan Langille / November 30, 2024

NOTE: the images in this blog post were broken. As of 2024-12-01 1600 UTC, they are fixed. Sorry about that. Two useful links for future me: https://caniuse.com/?search=HEIC https://urlscan.io/result/31b29ced-bf41-415c-994e-df6ec532cb29/ The time arrived this morning. The batteries were charged up. I had most of the day to myself. It was time to replace the batteries. Elapsed time […]

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Optimizing UPS power use when the power goes out

Leave a Comment / Eaton, Network monitoring, nut, UPS / By Dan Langille / November 24, 2024

This post is mostly for myself. I’m just putting my Sunday morning thoughts down for later review and consideration. When Selecting replacements batteries for my Eaton 5PX UPS (5PX2200RT & 5PXEBM48RT), I began to think about: when the power goes off, why can’t I keep using my laptop? Usually, I still have an Internet connection:

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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

7 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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