User's Manual

6
 When charging, a lightning charging icon  appears on the battery icon, and the LED
indicator (11) on the device is red. When the LED indicator (11) turns green, it indicates that
the charging is completed;
 During use, if the battery icon turns red, it indicates that the battery level is low. Please charge
the battery in time to avoid reducing the service life of the device due to the over discharge of the
battery.
Safety Precautions
 When charging, please use the 5V2A power adapter compatible with the device. Using any
other type of power adapter may cause irreversible damage to the battery or the adapter
itself;
 If the device is not used for a long time, the battery should be partially charged, not fully
charged or discharged;
 Do not charge the device immediately after it is moved to a warm environment from a cold
environment. Wait for 30 to 40 minutes for preheating;
 Do not use the charger if it is modified or damaged;
 The device should be charged at a temperature of 0°C to +40°C. Otherwise, the battery life
will be significantly reduced;
 When charging, please do not leave the battery unattended;
 Do not connect the battery to the power supply for more than 24 hours after it is already
fully charged;
 It is not recommended to connect third-party devices that consume more energy than the
allowed value;
 The device is equipped with a short circuit protection system, but conditions that may lead
to a short circuit should be avoided;
 Use the device at the recommended operating temperature from -20°C to +50°C. Do not
use the device beyond this temperature range or it may shorten the battery life;
 When the device is used under sub-zero temperature, the battery capacity drops. This is
normal and does not indicate a defect.