Sony ILCE-7S - Manual (Page 233)

Batteries which have not been used for more than a year may have deteriorated.
This phenomenon occurs when you charge the battery pack in an extremely hot or cold
location. The optimum temperature for charging the battery pack is between 10 °C and 30
°C (50 °F and 86 °F).
[290] Troubleshooting Troubleshooting Battery pack and power
The battery pack inserted in the camera is not charging.
Charge the battery pack with the camera’s power turned off.
[291] Troubleshooting Troubleshooting Battery pack and power
The battery pack is not charged.
When the battery pack is not charged (the charge lamp does not light) even if you follow
the proper charging procedure, check if the power of the product is turned off, then
remove the battery pack and re-insert the same battery pack securely, or disconnect and
reconnect the USB cable.
[292] Troubleshooting Troubleshooting Battery pack and power
The monitor does not turn on even when the product is
turned on.
[FINDER/MONITOR] is set to [Viewfinder]. Set [FINDER/MONITOR] to [Auto].
[293] Troubleshooting Troubleshooting Shooting still images/movies
You cannot record images.
You are using a memory card with a write-protect switch, and the switch is set to the