Lithium Battery 3.7V Lithium Polymer Battery 3.2V LifePo4 Battery 1.2V Ni-MH Battery Button Coin Battery
3.7V Battery Pack 7.4V Battery Pack 11.1V Battery Pack 14.8V Battery Pack Other Battery Pack
Sino Science&Technology Battery Co.,ltd is a high-tech production enterprise which specialize in the R&D and production of Lifepo4 batteries,energy storage battery,portable UPS power supply,personalized customization lithium battery pack etc .
Environmental cylindrical 18650 21700 32700 26650 14500 18500 lithium ion rechargeable battery, LifePO4 battery,3.7V lithium polymer battery, NiMH battery , NiCD battery ,Lead acid battery,dry cell battery ,alkaline battery ,heavy duty battery, button cell battery etc. we devote to R&D,innovation ,production & sales
Shenzhen Green Power Energy Battery Co.,ltd specializes in a wide range of digital battery such as environmental cylindrical 18650 21700 32700 26650 14500 18500 lithium ion rechargeable battery, LifePO4 battery, 3.7V lithium polymer battery, NiMH battery, NiCD battery, dry cell battery, alkaline battery, heavy duty battery, button cell battery etc. we devote to R&D, innovation, production & sales. With automatic production machines we have been exported goods to all over the world over 15years. We have complete exported certificate such as KC, CE, UL, BSCI, ROHS, BIS, SGS, PSE etc
Dongguan Datapower New Energy Co.,ltd is a high-tech production enterprise which specialize in the R&D and production&sale of lithium polymer batteries,drone battery,airplane batteries &battery pack etc.
Anhui Seong-hee New Energy Technology Co.,ltd is a high-tech production enterprise which specialize in the R&D and production of primary batteries. And mainly produces and sells alkaline batteries & carbon zinc batteries. there are size AA, AAA, C, D, 9V etc
Guizhou STD Battery Co.,ltd is a high-tech production enterprise which specialize in the R&D and production & sale of lithium polymer batteries, drone battery, airplane batteries & battery pack etc.
release time:2024-08-24 Hits: Popular:AG11 battery
Lithium battery control function
The control function mainly refers to charging and discharging control, as well as power balance function.
Charging/discharging control refers to the control of turning off the charging or discharging switch once protection occurs, and the control function of turning on or off the power device MOS in the circuit.
Electricity balance can be divided into passive balance and active balance. The currently mature technology is generally passive balance, which adjusts different series voltages through resistor discharge. In layman's terms, it is to discharge the high voltage and supplement the low voltage. The general strategy for balancing is charging balancing.
The consistency of batteries mainly relies on the consistency of the battery cells. The balanced current is very small, usually around 10-50mA, and it is difficult to balance batteries with poor consistency to achieve consistency by adjusting the difference in self discharge of the batteries.
4. Power SOC
SOC (State of Charge) generally refers to the percentage of remaining battery life, which reminds users of their battery life. There are many strategies for SOC, and the more mature technologies are ampere hour integration method, ampere hour integration plus voltage correction method, Kalman filtering method, etc.
The SOC algorithm generally needs to be adjusted based on the characteristics of the battery itself, as the charging and discharging curves of different batteries have certain differences. In addition, there are significant differences in temperature, discharge rate, and internal resistance.
5. Communication function
Communication is the transmission of collected battery information to the host through a communication interface. The main communication interfaces are mainly wired interfaces, such as UART/RS232/RS485/CAN, etc. Among them, RS485 and CAN are the most commonly used due to their differential transmission, long transmission distance, and high reliability.
With the popularization of mobile Internet, wireless interfaces are also becoming more and more popular. For example, Bluetooth, GPRS/4G/5G are also increasingly used in lithium battery systems.
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