1. Working voltage: 2.7V-4.2V, suitable for NCM Ternary polymer lithium battery (Li-ion), lithium iron phosphate battery (LiFePO4).
2. Working principle: Flycap-capacitor transfer charge transporter, Balancer board is connected to the battery to start the balance work, using the original brand new ultra-low internal resistance MOS, 2OZ copper thickness PCB,

3. Balance current 0-5.5A,the more balanced the battery current is Small, reserved for the dormant switch wiring position, the dormant power-off mode working current is less than 0.1mA, and the balance voltage accuracy is within 5mv!

During charging, the strongest cell will determine the cut-off voltage of the entire pack. Therefore, the low-capacity cells will be overcharged. Similarly, while discharging the low-capacity cells will be over-discharged.

The overcharging and over-discharging of a single cell depreciate the performance of other cells as well.Therefore, LiFePO4 battery balancing is required to maintain the performance level of all cells and avoid overcharging and over-discharging.

There are multiple ways to achieve an active balancing function for LiFePO4 batteries. These ways differ in the design of the circuit. The common circuit designs are:

Inductor-based Circuit
Single Inductor Circuit: Cheap cell balancing circuit option. It is also one of the smallest sizes.
Multiple Inductor Circuit: More expensive than single inductor circuit. However, the balancing speed is faster. It also has better efficiency.
Transformer-based Circuit
Single Transformer Circuit: Faster than inductor-based circuits. There is a presence of little magnetic losses.
Multiple Transformer Circuit: Faster cell balancing. However, they are costly, and the circuitry is very complex.
Capacitor-based Circuit
Single Capacitor Circuit: A single capacitor circuit uses one capacitor for the entire battery pack. Therefore, a lot of switches are required for controlling the charging voltage of each cell. In addition, it needs an intelligent system to monitor the switching function.
Multiple Capacitor Circuit: There are a number of capacitors for every battery cell. The charging voltage is maintained by choosing the appropriate capacitor for unequal voltage distribution. There is no need of complex sensors and controls.

EK-C5S5A supports cascading battery packs. Fox exmple, 2pcs of 5s cascade to 9s, see below drawing:

NOTE:As shown in the figure above,there can be multiple common ends of energy exchangeso that the efficiency of equilibrium will be higher;It is also possible to use only one common end of theenergy exchange atthejunction of two modules.The other free feet are suspended, and it is best todistribute the number of strings equally on each board.If you need the cascade diagram for more strings, Please contact our online service, Thanks.