Replacing The Back-Up Battery - Canon EOS-1Ds Instruction Manual

Digital slr camera
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Replacing the Back-up Battery

The back-up battery maintains the camera's date and time. The battery's service life is about
10 years. If the date/time is reset upon battery pack replacement, replace the back-up battery
with a new CR2025 lithium battery as described below.
( + )
For the back-up battery, be sure to use only a CR2025 lithium battery.
Set the <
> switch to <
1
remove the battery pack.
The back-up battery is on the ceiling of the battery
pack compartment.
Remove the back-up battery cover.
2
Loosen the screw as shown in the illustration.
Remove the back-up battery.
3
Install a new back-up battery.
4
The plus side of the battery must face up.
Reattach the battery cover.
5
After you install the battery and set the <
to <
>, the LCD monitor will display the menu for
setting the date and time. Follow the steps
on page 148 to set the correct date and time.
> and
> switch
2
4
to
149
9

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