When it comes to power management, regular monitoring and maintenance of uninterruptible power systems (UPSs) is critical to ensuring continuous uptime of electrical systems. This is a particularly crucial consideration for UPS batteries, which serve as the backbone of these systems and are also the most vulnerable component. Battery failure is a leading cause of load loss, so knowing how to mitigate risks will help to prolong battery life while also saving you time and troubles down the road.

The Rigel 288 Plus safety analyzer from Rigel Medical, Tampa, Fla, operates on AA batteries and can be used to complete testing for insulation, earth/ground bond, and touch or point-to-point leakage current. Its small footprint also makes it easier for field engineers to transport from from site to site.

An April 24, 2015 FDA Warning Letter to a replacement battery supplier has raised questions about replacement manufacturer responsibilities and possibly battery quality. The manufacturer that received the letter specifically labels its batteries for medical device use.