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The 18650 lithium-ion battery is a cylindrical battery, more accurately called a battery cell. 18650 is the size specification of the battery cell. 18 represents the diameter of the battery cell of 18MM, 65 represents the length (height) of 65MM, and 0 represents the cylindrical battery cell. Due to volume and energy density, the capacity of 18650 will not be outrageously high. The common capacity range for 18650 lithium-ion batteries is still between 1800mAh and 2600mAh, while Panasonic has achieved 3600mAh, but the price has also increased significantly. Therefore, the common capacities on the market are still between 1800mAh and 2600mAh. As for the online mobile 6000mAh and 9000mAh, everyone must see clearly whether it is MAh or mwh. If one letter is missing, the meaning will be completely different.

Let me explain the relationship between mwh and mah to everyone

1. MWh=milliwatt hour. It means milliwatt hour (10 ^ -3), while MWh means megawatt hour (10 ^ 6), referring to power consumption KWh is the abbreviation for kilowatt hour, which is commonly referred to as degree. 1 kilowatt hour is one kilowatt hour of electricity

2. MAh: The unit of measurement for battery capacity, which is actually the total number of electrons that can be released for external use in the battery. The physical standard unit is the familiar Coulomb. The international standard unit of Coulomb is the ampere second of current multiplied by time:

1mAh=0.001 amperes * 3600 seconds=3.6 amperes seconds=3.6 Coulombs

3. The relationship between mAh and mwh units

How is the conversion between some mobile phone batteries that do not use the mAh standard battery level and instead use the mwh unit?

For example, a battery labeled 2960mwh3.7v has an actual charge of 2960/3.7=800mAh (milliamperes)

So, some sellers sell 9000mwh18650 lithium-ion batteries with an actual battery capacity of 2432mAh. If the capacity is even smaller, at 6000mwh, the actual capacity would be 1621mah. So when choosing a battery, everyone must keep their eyes open and see if it is MWH or MAH.

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