Lithium battery maintenance board can play the effect of charging and discharging maintenance for series and parallel connected battery pack, and at the same time can detect the over-voltage, over-current, over-temperature, under-voltage and short-circuit of each single battery in the battery pack to extend the service life of the battery and avoid the damage of the battery due to over-discharge. Lithium battery maintenance board is an indispensable component of lithium battery.
Lithium battery maintenance board also has a balanced maintenance effect, there are two methods of energy-consuming and energy-transferring. Energy-consuming equalization refers to the power or high voltage of a battery in a series of batteries, with a resistor to lose the excess power. Energy-consuming equalization is also divided into charging equalization, voltage fixed-point equalization, and static automatic equalization.
Equalization during charging: When the voltage of any one battery is higher than the average voltage of all batteries during charging, the maintenance board will start equalization maintenance. Voltage point equalization: The Li-ion battery maintenance board starts equalization at one voltage point, only at the end of battery charging, and the equalization time is short. Static automatic equalization: it is performed during charging or discharging, even if the battery is in static placement, when the voltage is not consistent, the lithium battery maintenance board will start equalization maintenance until the voltage remains consistent.
Transfer energy type is to let the large-capacity battery transfer to the small-capacity battery by the method of energy storage, to detect the capacity of the battery to do equalization, divided into capacity equalization from time to time and capacity fixed point equalization.
Battery Management System
Battery Management System (BatteryManagementSystem), referred to as BMS, has the function of measuring battery voltage, but also contains the battery maintenance function, battery balance function, battery storage function, energy measurement function, network communication function, etc.. The battery handling system can prevent the battery from over-discharging, over-charging, over-temperature and other abnormal conditions.
As the lithium battery may damage the battery function and even produce the danger of bursting under serious overcharge and overdischarge, the battery handling system exists to monitor, maintain and balance the lithium battery, so as to improve the efficiency of the lithium battery.
Similarities and differences between lithium battery maintenance board and battery handling system BMS
Lithium battery maintenance board and battery handling system are both for lithium battery maintenance effect. The difference between them is: 1. Li-ion battery maintenance board is composed of IC, MOS tube and resistor, capacitor components, is an important component of the lithium battery. Battery handling system can be edited and comes with battery handling software, which is relatively more intelligent and equivalent to the brain of the lithium battery, playing a control effect.
Lithium battery maintenance board has an important effect in 3C lithium battery and power battery category, and the battery handling system is applied in the power battery category. Battery handling system is better than the battery maintenance board, but the function is not stable in low temperature.
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