12A. According to the "International Lithium Battery Standard", the discharge current of 12Ah lithium-manganate battery is 12A. Lithium-manganate battery refers to a battery that uses lithium-manganate material as a positive electrode. The rated voltage of lithium manganate battery is 2.5-4.2V. Lithium manganate battery is widely used for its low cost and good safety. and medium-sized companies. Model cell, power battery, its rated voltage is 3.7V.
What is the difference between normal operating current and capacity of lithium batteries?
The standard for lithium-ion batteries is generally to discharge at 0.2 C. The details depend on the application of the electrical product and the specifications of the corresponding battery cells. Basic lithium battery cell standards support 0.2C chargingand 0.2 C. C discharge, and now many energy flow type lithium batteries, such as agricultural lithium batteries, support 15C and 35C discharge standards, and lithium battery discharge- ion can be customized according to the product application environment.
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The differences between the normal operating current and the capacity of lithium batteries are as follows:
Difference 1:
1 The meaning of operating current. and capacity:
The operating current is the discharge current in actual use. Capacity is a unit of measurement for the amount of energy stored in a battery. This is the main battery indicator and is usually expressed in mAh. Taking 1AH as an example, 1AH is equal to 1000mAH, which means the battery discharges with a current of 1A for approx.iron 1 hour. In actual use, the larger the current, the actual discharge time will be shortened.
Difference 2:
2. Capacity and charging current:
Capacitance and charging current are not necessarily related, but there is always some relationship. batteries, if you charge with a low current, it will take much longer to fully charge, so when designing a charger for a large capacity battery, it is usually more powerful than a small capacity battery.
That is to say, the current is greater. We know that the charger can be considered as a constant current source. If you look closely, each charger, i.e. online charging, has a different current.
Third difference:
3. Battery Performance:
One of the important performance indicators of battery performance is battery capacity, which indicates that incertain conditions (discharge rate, temperature, final voltage, etc.) The amount of electricity released by the battery (JS-150D can be used for discharge testing), i.e. the capacity of the battery , generally in ampere-hours (abbreviated, expressed as A·H, 1A·h=3600C)
The formula for calculating the capacity of the battery C is C=∫t0It1dt (integrate the current I of t0 to t1). The battery is divided into positive and negative poles. Battery capacity is divided into actual capacity, theoretical capacity and rated capacity according to different conditions. Capacity C = discharge current (constant current) I × discharge time (hours) T. Discharge time T = capacity C / discharge current (constant current) I. Discharge current (constant current) I = capacity C / time discharge T.
:Characteristics of lithium-ion batteries:
Lithium-ion batteries have a very useful characteristic for fuel measurement.Characteristic, i.e. saythat when discharging, the battery voltage will gradually decrease with the passage of power and there will be a considerable slope. This gives us another rough way to measure electricity.
The method of taking battery voltage is to measure the height of the water surface in the water tank to roughly estimate the volume of water remaining.
But in fact, the voltage of a lithium battery is much more complicated than measuring the height of still water in the water tank. Using voltage to estimate the remaining capacity of a battery has the following instabilities: For the same battery, with the same remaining capacity, the voltage value changes due to the magnitude of the discharge current. The higher the discharge current, the lower the voltage.Lithium-ion batteries with different types of electrode materials have very different discharge platforms. THEs discharge platforms of lithium-cobalt batteries and lithium-manganese batteries are completely different.
The above will cause voltage fluctuations and differences, making the battery capacity display unstable. When using voltage to measure battery capacity on a mobile phone, the mobile phone cannot always be asleep with a low current state.
Severe temporary power losses, such as turning on the backlight, playing ringtones, especially passing the battery, will cause the battery voltage to drop quickly.