Yes, use the terminal on the back of the band designed for this purpose.
Connect the power cable to the device, put the three-position switch on the back of the device in AC mode, the battery will be charged.
The battery needs to be charged, or if it has just been charged, you need a new battery.
Regular and complete charging is the first recommendation, if you do not use the device for a long time, recharge it every three months to maintain the health of the battery.
The answer is definitely no.
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