VI. Product maintenance
6.1 Newly purchased products shall be fully charged before use;
6.2 Regularly remove the dust and dirt at the cooling window;
6.3 Under the condition of long-term storage for more than 3 months, at least 50%
of the electricity power shall be stored;
6.4 If stored for more than 6 months, please charge and discharge the product for
1-2 times in order to prolong the service life of the battery;
VII. Warnings and notes
7.1 The voltage standards of different electrical appliances are different. Before
use, carefully check whether the rated voltage range of the product is consistent
with the voltage range of the portable power supply, otherwise it may lead to
dangerous situations;
7.2 After the battery is discharged to the termination voltage, more discharge is
called over discharge. Over discharge is easy to cause serious power loss of the
battery, which greatly shortens its service life. Therefore, deep discharge should
be avoided when the battery is used;
7.3 The product shall be kept away from fire source, high temperature
