What is the battery rated capacity？
Refers to a certain discharge conditions, when the battery is discharged to release thepower cut-off voltage. IEC standard nickel-cadmium and nickel metal hydride batteries in the 20 ± 5 ℃ environment, with 0.1C to 0.2C charge for 16 hours when discharged to1.0V release of electricity for the battery’s rated capacity, expressed in C5, while forlithium-ion battery, provides that at room temperature, constant current (1C), constant voltage (4.2V) under the control of charging, charging 3h, then 0.2C discharge to 2.75Vwhen the release of electricity to its rated capacity, battery capacity of the unit Ah, mAh (1Ah = 1000mAh).
What is the residual capacity of the battery discharge？
When the rechargeable battery with large current (such as 1C or above) the discharge, because the diffusion rate within the current existence of the Ambassador of the “bottleneck effect”, resulting in battery capacity is not fully released when the voltage has reached the end, then a small current, such as 0.2C can continue to discharge until the1.0V / branch released when the capacity is called the residual capacity.
What is the battery nominal voltage, open circuit voltage, the midpoint voltage, the termination voltage？
The nominal battery voltage refers to the normal operation voltage of the process shown, the second nickel-cadmium nickel-metal hydride battery nominal voltage 1.2V; secondarylithium battery nominal voltage of 3.6V;
Open circuit voltage refers to the outer circuit is disconnected, the battery potential difference between the two extremes;
End voltage means the battery discharge test, the provisions of the end of the dischargecut-off voltage;
Midpoint voltage refers to 50% capacity discharge the battery voltage, high currentdischarge is mainly used to measure the series of high-rate discharge battery capacity isan important indicator of the battery.
Common way of charging the battery, which has several？
Nickel-cadmium and nickel metal hydride battery charging method:
1 Constant current charge: charge current throughout the charging process for a certainvalue, this method is the most common;
(2) constant voltage charging: charging voltage across the charging power to maintain a constant value, current in the circuit with the battery voltage increases and decreases.
3 constant current constant voltage charging: The battery is first charged with constant current, when the battery voltage rises to a certain value, the voltage remains constant,the circuit current is reduced to very small, eventually to zero.
Lithium battery charging method:
Constant current constant voltage charging: The battery is first charged with constant current, when the battery voltage rises to a certain value, the voltage remains constant,the circuit current is reduced to very small, eventually to zero.