Sony MZ-B50 Manual De Instrucciones página 7

Charging the built-in battery for the clock
When you use the recorder for the first time or after a long period of disuse, charge the
built-in battery for the clock. After setting the clock, leave the dry batteries installed for
about more than two hours so that the built-in battery is automatically charged. You can use
the recorder while charging. Note that various settings, such as clock, return to the factory
settings if you take out dry batteries while charging. Once charged, the recorder will
automatically charge the built-in battery while connected to dry batteries.When the built-in
battery is charged, the settings, such as clock, will remain for about one month after dry
batteries are taken out. For details on setting a clock, see page 19.
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