Reference Manual

732
Other Compatible Accessories
D
Low Ambient Temperatures
The camera may not function at low temperatures (approximately 10 °C/
50 °F or below) when powered by partially-charged batteries. In cold
weather, charge one set of batteries before use and keep another in a
warm place, ready to be exchanged as necessary. Once warmed, cold
batteries may recover some of their charge.
A
Battery Endurance with a Battery Pack
Attaching an optional battery pack with two fully-charged EN-EL15c
batteries increases the number of shots and length of movie footage that
can be recorded (battery endurance) by approximately 1.9 times over the
amount that can be shot with the camera alone.