1. Visual inspection of the appearance of the 18650 battery shows that the Grade A 18650 battery has a good appearance. The battery film is smooth and wrinkle-free, and has strict plastic labeling. See the detailed information in the inkjet code on the battery film. Battery data;
2. Weigh the weight of the 18650 battery. The weight of the Grade A lithium battery is. obviously heavier than the faulty 18650 battery. When you hold the fake 18650 battery, you clearly feel that the battery is a shell.
3. Weight comparison test, put the 18650 battery on it; an electronic scale, weigh it, then compare the weight. The weight of Grade A 18650 batteries, that is, real 18650 batteries, is generally around 43 grams, while the weight of fake 18650 batteries is generally at least 10 grams. There are also fake batteries 18650 mixed with mud. 18650 batteries generally weigh 30 grams.
Note: When comparing battery weights, the electronic scale must first be reset to zero. Fake batteries cannot be used as real batteries. If you encounter fake batteries, you should report them to relevant departments in time.
A 10,000 mAh external battery weighs approximately 0.3 kg.
Based on the current single cell capacity of an 18650 lithium battery of 2600 mAh (0.05 kg), 10000 mAh requires 4 cells (0.2 kg), including the weight of the circuit board and the shell, the total is about 0.3). K.G.
So 100,000 mA is equivalent to 3 kg