Rain Bird ISM Instruction Manual - Installing The Battery

ISM Installation, Programming & Operation Guide

Page 8

Installing the Battery

The battery back-up feature retains time,

date, and programming information during

power outages. The battery also lets you

program the timer under battery power

before it is connected to an AC power

supply.

For best results, use a long-life, 9-Volt

alkaline battery. A new battery will normally

provide power for up to one year. Replace

the battery yearly to ensure an uninterrupted

power supply.

NOTE: Make sure the timer is

connected to an AC power supply

when replacing the battery, or you

will lose all programming information

including date and time.

To install the battery:

1. Remove the timer’s lower access cover to

expose the battery compartment.

2. Snap the two-wire battery clip onto the

terminals of the new battery. If you are

replacing an old battery, dispose of the old

battery properly.

3. Insert the new battery snugly into the

battery compartment.

4. Replace the lower access cover.

NOTE: If no battery is installed, short

circuit detection may not function as

desired. Please ensure the battery is

installed prior to the operation.