Hytera HP78X, Руководство пользователя

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If you want to clean the battery slot, use the non-mental brush to clean up the dust or dirt, and then use the
dry and soft lint-free cloth to clean up the battery contacts.
10.4 Sterilizing

Turn off the radio and remove the battery before sterilizing.

Ensure no external devices are connected to the radio.

Do not directly spray the alcohol on the radio.

Keep the radio away from the power supply and fire.

Do not use the radio before it is fully dry.

After sterilizing the accessory connector, put the cover back in place.
It is recommended to sterilize the radio regularly. You can sterilize the radio by the following tips:
Use the lint-free cloth with proper rubbing alcohol (density ≥ 70%) to clean the radio surface, screen, keys, knobs,
and interfaces.
10.5 Storing

Turn off the radio and remove the battery before storage.

Ensure no external devices are connected to the radio.

The capacity and performance of the battery may degrade if the battery is not used for long time.
When storing the radio, follow the tips below:

Keep the radio in the well-ventilated place with the temperature from –5
℃
to 25
℃
and with the humidity
from 45% to 75%.

Keep the radio away from the acidic and corrosive substances.

Keep the radio away from the fire or other heat sources.

Do not store the radio in direct sunlight.

During storing, charge the battery once every three months, and care the battery once every six months.