On Wed, 16 Aug 2017 08:08:17 +0100, Folderol wrote:

> The fire alarms and emergency lighting are all SLA powered. The
> batteries are still good after about 10 years ...

Not APC kit then, thier stuff cooks batteries in around 3 to 4 years.

> ... -  every month they are tested, and the lighting run for 30 minutes.

Hum isn't it a legal requirement for emergency lighting to run for >3
hours? A 30 min run won't show up a battery that has lost capacity
below that required for a >3 hour run time.

--
Cheers
Dave.

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