Can a power bank be used to charge the Xiaomi Smart Band 9?
The band can not be fully charged when charging with a power bank. It is not recommended to use a power bank to charge the band.
Because most of the power banks on the market have a full-charge automatic shutdown function, the power bank will automatically disconnect when the discharge current is small to a certain extent. When the band is charging, the current is very small, and the power bank will mistakenly think that it is full, and thus disconnect the charging current of the band, which will cause the band to not be fully charged or cannot be charged.
Because most of the power banks on the market have a full-charge automatic shutdown function, the power bank will automatically disconnect when the discharge current is small to a certain extent. When the band is charging, the current is very small, and the power bank will mistakenly think that it is full, and thus disconnect the charging current of the band, which will cause the band to not be fully charged or cannot be charged.
Does it help?
Yes
No