Some charging treasures have power indicator lights, which can look at the indicator lights; If there is no power indicator, you can look at the charging speed of the mobile phone. If the power of the mobile phone rises slowly or does not rise, it means that the charging treasure is low in power and should be charged. I hope I can help you.
Confirm whether the charging treasure is connected to the power supply or fully charged. Press the power button or plug on the charging treasure and observe the remaining power or percentage displayed on the indicator light or LCD screen.
Method for judging charging treasure capacity: charging treasure power indicator lamp indicates voltage level. Generally, the standard voltage value of 1 power saving core is 6V full or 2V discharge, which can be put to 5V. The capacity of a power-saving core is generally 2200mAH, and the charging treasure is generally 3 power-saving cores in parallel with a capacity of 6600mAH.
You can directly look at the rated capacity (mAh) under the charging treasure. What is the rated capacity of charging treasure, and what is your charging treasure capacity? Other information under the charging treasure has nothing to do with capacity, such as product name and voltage. These don't need to be seen
The rated capacity is measured under laboratory conditions. The minimum guaranteed capacity that the charging treasure can output under the current of 2A or 1A is the rated capacity. In general, the higher the rated capacity, the higher the effective energy of the charging treasure, and the more electricity the charging treasure can charge.