UPDATE: this work has been successfully completed.
Our UPS at Harbour Exchange Square (HEX) in London is showing a battery fault and we have replacements on the way.
NOTE this UPS is in addition to the Data Centres own UPS and generator.
Subject to the arrival of the new batteries we are planning to replace the battery pack in the evening on Tuesday 6th January. This should not cause an outage as tney are designed to be swapped while the unit remains on.
However with all work on this kind there is a small risk.
We will update this post as the work progresses. Any questions please contact support in the normal way.