DiggerUK

Lead Acid Batteries: How Cheap Beat Cool at Google

Hi John,
You click open a memory file from a recent incident.

You reminded of when I saw the batteries being serviced on the backup system to the emergency exit lights and fire alarm at work.

I asked the engineer when they renewed the batteries, his response was "when they don't hold a charge"
To my question "how long do they last" I was asked "how long is a piece of string"

Guess what the batteries to this critical system were?

I remember at the time thinking I know someone who has asked for details on how long batteries last, sorry for the delay.