Lithium battery maintenance board can play the effect of charging and discharging maintenance for series and parallel connected battery pack, and can detect the over-voltage, over-current, over-temperature, under-voltage and short-circuit condition of each single battery in the battery pack to prolong 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.
The performance of the lithium battery maintenance board can only be completed through the test, the available shrapnel micro-pin module for its conduction and articulation, test process shrapnel micro-pin module can transmit the current in the range of 1-50A, with good articulation function, and voltage stability, no attenuation of current; in the small pitch range can cope with the pitch value between 0.15mm-0.4mm, stable and reliable performance, which is conducive to Improve the efficiency of the lithium battery maintenance board test. After passing the test, the lithium battery maintenance board can be assembled into the lithium battery to maintain the effect of the cell phone 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 remaining power. Energy-consuming equalization is also divided into charging equalization, voltage fixed-point equalization, and static active equalization.
Charging equalization: When charging, when the voltage of any one battery is higher than the average voltage of all, the maintenance board will start the equalization maintenance.
Voltage point equalization: The Li-ion battery maintenance board is set at a voltage point to start equalization, only at the end of the battery charging, the equalization time is shorter.
Static active equalization: in the process of charging or discharging, even if the battery is in a static shelf condition, when the voltage is inconsistent, 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 time equalization 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 equalization function, battery reserve 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 in serious overcharge and over discharge condition may damage the battery performance and even produce the risk of bursting, so the battery handling system exists to monitor, maintain and balance the lithium battery, and then 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 modified and comes with battery handling software, which is relatively more intelligent and equivalent to the brain of the lithium battery, playing a control effect.
2. Lithium battery maintenance board has an important effect in 3C lithium battery and power battery category, and the battery handling system is used in the power battery category.
3. The battery handling system is better than the battery maintenance board, but the performance in low temperature is not stable.
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