Sony ILCE-7S - Manual (Page 213)

Charging method of the internal rechargeable battery
Insert a charged battery pack into the product, or connect the product to a wall outlet (wall
socket) using the AC Adaptor (supplied), and leave the product for 24 hours or more with the
power off.
[267] How to Use Precautions/This product Precautions
Notes on the battery pack
Charging the battery pack
Charge the battery pack (supplied) before using the product for the first time.
The charged battery pack will discharge little by little even if you do not use it. Charge the
battery pack each time before you use the product so that you do not miss any
opportunities to shoot images.
You can charge the battery pack even if it is not completely discharged. You can use a
partially charged battery pack.
If the Charge lamp flashes and charging is canceled halfway, remove the battery pack
once then reinsert it.
We recommend charging the battery pack in an ambient temperature of between 10 °C
and 30 °C (50 °F and 86 °F). The battery pack may not be effectively charged in
temperatures outside this range.
When you connect this product and a laptop computer that is not connected to a power
source, the laptop’s battery charge may decrease. Do not charge this product using the
laptop computer for too long.
Do not turn on/restart a computer, wake a computer from sleep mode, or turn off a
computer while this product is connected to the computer via USB cable. Doing so may
cause a malfunction of this product. Disconnect the product and the computer before
performing the above operations.
We do not guarantee charging if you are using a self-built or modified computer.
Charging time (Full charge)
The charging time is approximately 150 minutes using the AC adaptor (supplied). The above
charging time applies when charging a fully depleted battery pack at a temperature of 25°C
(77°F). Charging may take longer depending on conditions of use and circumstances.
Effective use of the battery pack
Battery performance decreases in low temperature environments. So in cold places, the
operational time of the battery pack is shorter. To ensure longer battery pack use, we
recommend putting the battery pack in your pocket close to your body to warm it up, and