Nikon Z9 Mirrorless Camera - Manual (Page 867)

867 Caring for the Camera and Battery: Cautions
• Do not use the battery at ambient temperatures below −10 °C (14 °F) or
above 40 °C (104 °F). Failure to observe this precaution could damage the
battery or impair its performance. Charge the battery indoors at ambient
temperatures of 5 °C–35 °C (41 °F–95 °F). The battery will not charge if its
temperature is below 0 °C (32 °F) or above 60 °C (140 °F).
• Capacity may be reduced and charging times increase at battery
temperatures from 0 °C (32 °F) to 15 °C (59 °F) and from 45 °C (113 °F) to
60 °C (140 °F).
• Batteries in general exhibit a drop in capacity at low ambient temperatures.
Even fresh batteries charged at temperatures under about 5 °C (41 °F) may
show a temporary increase from “0” to “1” in the setup menu [
Battery info ]
age display, but the display will return to normal once the battery has been
recharged at a temperature of about 20 °C (68 °F) or higher.
• Battery capacity drops at low temperatures. The change in capacity with
temperature is reflected in the camera battery-level display. As a result, the
battery display may show a drop in capacity as the temperature drops,
even if the battery is fully charged.
• Batteries may be hot after use. Observe due caution when removing
batteries from the camera.
Charge Batteries Before Use
Charge the battery before use. The supplied battery is not fully charged at
shipment.
Ready Spare Batteries
Before taking photographs, ready a spare battery and keep it fully charged.
Depending on your location, it may be difficult to purchase replacement
batteries on short notice.