Owon HDS272S User Manual page 44

the power socket through the USB data cable and power adapter delivered
with the machine for charging.
Charge the oscilloscope through the USB interface: Connect the oscilloscope
to a computer or other equipment through a USB data cable for charging (pay
attention to the load capacity of the power supply equipment to avoid
abnormal operation of the equipment).
Note
To avoid overheating of the battery during charging, the ambient temperature
must not exceed the allowable value given in the technical specifications.
Replacement of Lithium Battery
Generally, the battery does not need to be replaced. However, when
necessary, it can only be replaced by qualified personnel, and only lithium
batteries of the same specification can be used.
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