Sony ICD-SX700 Operating Instructions Manual page 91

Menu items Settings (*: Initial setting)
USB CHARGE Sets whether batteries will be charged using a USB
connection or not.
ON*:
The batteries will be charged.
OFF:
The batteries will not be charged.
ONate
If you use a USB AC adaptor (not supplied) to connect the IC
recorder to the AC outlet, you can charge batteries regardless this
setting.
See page
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