Sony Cyber-shot DSC-RX100 IV - Manual (Page 34)

Note the following points when charging via a computer:
If the product is connected to a laptop computer that is not connected to a power source, the
laptop battery level decreases. Do not leave the product connected to a laptop computer for an
extended period of time.
Do not turn on/off or restart the computer, or wake the computer from sleep mode when a USB
connection has been established between the computer and the camera. Doing so may cause a
malfunction. Before turning on/off or restarting the computer, or waking the computer from sleep
mode, disconnect the camera from the computer.
Proper operation cannot be guaranteed on all types of computers.
Charging cannot be guaranteed with a custom-built computer, modified computer, or a computer
connected through a USB hub.
The camera may not operate correctly when other USB devices are used at the same time.
[11] How to Use Preparing the camera Charging the battery pack
Battery life and the number of images that can be
recorded/played back using a battery pack
Screen mode
Shooting (still images):
Number of images: approx. 280
Actual shooting (movies):
Battery life: approx. 45 min.
Continuous shooting (movies):
Battery life: approx. 80 min.
Viewing (still images):
Battery life: approx. 200 min., Number of images: approx. 4000
Viewfinder mode
Shooting (still images):
Number of images: approx. 230
Actual shooting (movies):
Battery life: approx. 45 min.
Continuous shooting (movies):
Battery life: approx. 85 min.
Note
The above battery life and number of images applies when the battery pack has been fully
charged. The battery life and number of images may decrease depending on the
conditions of use.
The battery life and number of images that can be recorded is for shooting under the