Sony ILCE-7S - Manual (Page 215)

conditions and environment in which each battery pack is used.
[268] How to Use Precautions/This product Precautions
Battery pack and battery charger
Charging the battery pack
The charging time differs depending on the remaining battery charge and the charging
conditions.
We recommend charging the battery pack at an ambient temperature of between 10°C to
30°C (50°F to 86°F). The battery pack may not charge efficiently outside this temperature
range.
Connect the battery charger to the nearest wall outlet (wall socket).
Do not recharge a battery pack that has just been charged or is nearly fully-charged
before using it. Doing so affects the battery performance.
If the CHARGE lamp flashes, the battery may be malfunctioning, or a battery pack of
another type than the specified one may have been inserted. Make sure the battery pack
is correct. If the battery pack is of the specified type, remove the battery pack and insert a
different battery pack, and check whether the battery charger operates correctly. If the
battery charger operates correctly, the first battery pack may be malfunctioning.
If the battery pack is dirty, the battery pack may not charge correctly. Wipe off the dirt with
a dry cloth.
Notes on using the battery pack
The remaining battery indicator may not provide an accurate reading depending on the
battery usage or environment.
The battery pack is not waterproof. Be careful not to get the battery pack wet.
Do not leave the battery pack in locations with high temperatures, such as in a car or
under a blazing sun.
Using the battery pack efficiently
When the ambient temperature is low, the battery performance is degraded and the
operating length of the battery decreases. In addition, the speed of continuous shooting
decreases. We recommend that you warm the battery pack, for example in your pocket,
and insert it into the camera right before you start shooting.
If you use the flash often, shoot images continuously, turn the camera on and off
frequently, or use a brighter setting for the screen, the battery life will decrease.
Battery life