Canon EOS-1DS Mark III Instruction Manual page 27

Recharging the Battery
Tips for Using the Battery and Charger
® Recharge the battery on the day before or on the day it is to be
used.
Even during non=use or storage, a charged battery wiii gradually
discharge and lose its power.
® After recharging the battery, detach it and unpJug the power
cord from the power outlet.
When not using the battery and charger, attach the protective covers.
® Use the battery in an ambient temperature range of 0°C = 45°C t
32°F = 1t3°R
To attain best battery performance, an ambient temperature of 10°C
= 30°C 1 50°F = 86°F is recommended. In cold locations such as
snowy areas, battery performance and operation time may
temporarily decrease.
® When not using the camera, remove the battery.
If the battery is left in the camera for a prolonged period, a small
amount of power current is released, resulting in excess discharge
and shorter battery life= Take out the battery from the camera and
attach the protective cover before storing= Storing the battery after it
is fully charged can lower the battery's performance.
® The battery charger can also be used in foreign countries.
The battery charger is compatible with a 100 V AC to 240 V AC 50160 Hz
power source. If necessary, attach a commercially=available plug adapter
for the respective country. Do not attach any portable voltage transformer
to the battery charger. Doing so can damage the battery charger.
® Check the battery performance.
While the battery is recharging, press the
<PERFORMANCE> button to check the
battery's performance level indicated by the
Charge level indicator=
8 _ (Green): Battery performance is fine=
_ [_(Green): Battery performance is slightly degraded=
1_ U(Red): Purchasing a new battery is recommended=
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