Nikon Z8 User Manual page 150

Power cable: After connecting the power cable with the plug in the orientation shown, insert the
battery and plug the cable in.
An exhausted battery will fully charge in about 2 hours and 35 minutes.
D
If the CHARGE Lamp Flashes Rapidly
If the CHARGE lamp flashes rapidly (8 times a second):
The battery was not inserted correctly: Unplug the charger and remove and reinsert the battery.
The ambient temperature is too hot or too cold: Use the battery charger at temperatures within
the designated temperature range (0–40 °C/+32–104 °F).
If the problem persists, unplug the charger and end charging. Bring the battery and charger to a
Nikon-authorized service representative.
Battery charging (flashes) Charging complete (steady)
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Charging the Battery