Ups battery replacement

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In early 2005 I found a couple of cheap Inform UPS battery backup units for my servers. They worked great and did they're simple switching job well when the power went out. Fast forward a few years to 2008 and the situation is different, one of the units no longer can hand half of it's capacity. I quickly figured it was the battery and swapped it out for a new 12v 7.2 Ah sealed maintenance-free lead battery.

Inform 600AP

The UPS is rated for AC 220V 50/60 Hz input and 350 W / 600 VA, 50/60 Hz, AC 220V output.

Ups battery unit.jpg

Opening case

Removing four screws will release the top casing.

Ups battery top casing.jpg

Removing battery

The battery is located on the front, the circuitry in the top casing, and the inverter behind the battery.

Ups battery circuit.jpg Ups battery inverter.jpg

The battery is easily removed by unmounting the front-panel and disconnecting the positive and negative leads.

Ups battery disconnected.jpg Ups battery disconnected top.jpg

CGB manufacturered the original battery unit, model CB1270, a regular 12v 7.0 Ah SLA battery.

Ups battery old top.jpg Ups battery old.jpg

New battery

I looked for a suitable replacement battery and I found two local suppliers, both offering the same amperage but slight price difference. I tried the cheaper option to experiment how much load and how durable the battery is.

Ups battery new top.jpg Ups battery new.jpg

To install the new battery was a simple matter of sliding the battery in place and connecting the leads.

Ups battery installed.jpg Ups battery leds.jpg

References