A Mess of a UPS - Disgusting Liebert GXT4 Battery Issues (my fault)
Автор: ScottDotDot
Загружено: 2026-01-23
Просмотров: 36
I've had two Emerson Liebert GXT4 120V 3kVA UPS units (GXT4-3000RT120) running a bunch of stuff in my basement for going on 10 years now. They've had a few battery replacements in that time, but never a good clean. Hence their disgustingly dusty state. So here I am giving them a decently good clean, and replacing the old fans just in case.
The major problem here was of my own making; I'd ordered replacement batteries quite a while ago and never got around to actually installing them. The SLA batteries sat on a shelf for months and eventually ran down to like 9V and were probably sulfated. Trickle charging them did not save the day, so I went with a new set.
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00:00:00 Intro
00:07:22 Double Online Conversion and Generators
00:11:09 Powering it on After ~6 Months
00:15:18 Replacing the Batteries
00:34:30 An Unfortunate State of Affairs
00:35:49 Trickle Charging the Bad Batts
00:41:23 Testing the Trickle Charged Batts
00:47:44 Opening the UPS
01:07:10 Cleaning the UPSes
01:13:46 Replacing the Fans
01:20:32 ATS Tangent
01:25:52 Testing the UPSes
01:27:51 Corroded Battery Terminals
01:30:19 Outro and Installed UPSes
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