Common parameters of rechargeable batteries.3.7V 18650 lifepo4 battery.CR2430 battery

　　The battery capacity represents the amount of battery capacity that can be stored, and the numbers we see on the battery packaging generally refer to the battery capacity label. Expressed in ampere hours or milliampere hours. It is a composite unit composed of the product of current units and time units, representing the ability of a battery to continuously discharge at a constant current. A fully charged battery can be discharged for 10 hours with a current of 200mA. Multiplying the current by time yields a capacity of 2000mA. H. If it is discharged with 400mA, the available time is 5 hours.

　　Energy density: The amount of electrical energy contained in a unit volume or weight. For the same power requirements, batteries with high energy density can have smaller volume and lighter weight.

　　C current: refers to the current at which a fully charged battery is discharged or fully discharged within one hour. Actually, it is the numerical value of the ampere hour capacity. A battery with a capacity of 1800mA has a C current of 1800mA. A battery with a capacity of 2000mA has a C current of 2000mA.

　　Open circuit voltage: refers to the potential difference between the two poles of a battery.

　　Memory effect: A new battery, with its electrode material having fine grains, can achieve the maximum electrode surface area. Due to use, the contents of the battery crystallize. After crystallization, the grains increase, also known as passivation, which reduces the available electrode area. Moreover, the grown grains can cause self discharge to increase, leading to a decrease in battery capacity and performance damage. This is the memory effect. The reason for the memory effect is due to incomplete repeated partial charging and discharging of the battery.

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