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• Keep the AC adapter in use while warming up while using the device.
It is normal. When the charging process is complete, they will cool down.
• If the motor rotates slower (weaker) or slower. During operation, the LED
will flash red, which means that the batteries can be fully charged.
• From time to time (about a month), the batteries can be fully discharged
and then fully charged to maintain optimum performance and condition.
• Charging devices after use and charging within an ambient temperature
range of 0 - 40 ° C.
HOW TO ACHIEVE THE LONGEST BATTERY LIFE
To ensure the longest battery life, we recommend:
• Store, use and charge the battery at room temperature. Too high
temperatures can negatively affect its service life.
• Do not leave the battery fully charged or completely discharged for a long
time.
• Do not keep the battery fully charged at all times.
• Do not discharge the battery completely.
Charging
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