How can I recognize that the rechargeable battery status is critical?
You need to charge the rechargeable battery when the top-left [...]
How often do I need to charge the rechargeable battery?
The rechargeable battery needs to be charged approx. every 6 [...]
How can I recognize whether the rechargeable battery is damaged?
Leaking liquid, deformation, damage to the battery housing, or excessive [...]
Why does the rechargeable battery get warm while it is charging?
If the battery feels pleasantly warm to the touch, this [...]
How should I dispose of the rechargeable battery for the ‘ekey uno’ fingerprint scanner?
If the rechargeable battery is not damaged, you can return it [...]