Extended Manual for RF919 v2.1
© 2024 page 59 of 63
22 Cleaning and maintenance
To clean the RF919 use a dry cotton cloth and the brush that comes
with the radio to remove any dust from the radio.
In case it is required to exchange the two 18650 style rechargeable battery cells
use the supplied screwdriver to open the battery compartment and exchange the
batteries. Close the battery compartment and charge the new batteries.
23 Safety tips
Please comply with the following safety tips to use the RF919, ensuring
safe and reliable use.
• Read and know all safety instructions and information on the correct usage of
the RF919.
• A flashing battery symbol “ ” displayed in the bottom right corner of the
primary screen indicates that the battery is almost empty. Please charge the
battery as soon as possible to ensure normal use.
• Please use a charger with an output voltage of 5V DC @1A-3A to charge the
battery to avoid any damage of the battery or the device.
• If the radio is not in use for a long time, please charge it once a month.
• Keep the radio away from rainwater and damp. Do not drop or splash any
liquid onto the product.
• Keep the radio away from high-temperature heat source.
• Avoid direct sunlight for a long time.
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