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Battery Calculator Terms Of Use

As part of our new website, we have included a fire alarm Battery Size Calculator Tool.

This tool has been provided to you "as is", for your personal use and for use at your own risk.

Extreme care must be taken when working with electricity or batteries. Incorrect working procedures can cause irrepairable damage to electrical equipment and/or cause severe damage to your health. Only trained and competent engineers should complete any form of electrical work.

This is an automated tool, Grainger Fire & Security will not accept responsiblity for its incorrect usage or for any incorrect calculations returned by this tool or for any damage of any type caused by the usage of this tool at any part of the test procedure.

This tool performs the standard battery calculation as detailed on this page. Please read your specification carefully, sometimes variations of this calculation are required.

To comply to BS5839, your own calculations should be carried out & recorded. If you are unsure, please contact Grainger Fire & Security who can arrange for a battery load test to be carried out on your behalf.

Added By Ian Ditchfield, 25/05/2015