Can 18650 lithium batteries be connected in series?

Introduction Can 18650 lithium batteries be connected in series? 18650 lithium batteries can be connected in series or parallel. They must be balanced, managed and associated with a protection circuit. Like the power supply of the electric car “Tesla”

Can 18650 lithium batteries be connected in series?

18650 lithium batteries can be connected in series or parallel. They must be balanced, managed and associated with protection circuits. For example, the power supply of a “Tesla” electric car relies on a battery composed of a large number of 18650 lithium batteries, and the battery of a laptop computer is also composed of several 18650 lithium batteries. /p>

The circuit diagram is as follows:

Working principle:

When the battery voltage is between 2.5V and 4 ,3 V, the first and second pins of DW01 All 3 pins output high level (equal to the supply voltage) and the voltage of the second pin is 0 V. At this time, the voltage of pins 1 and 3 of the DW01 will be added to pins 5 and 4 of the 8205A respectively. The two electronic switches of the 8205A are in a conducting state because their G pole is connected to the voltage of the DW01, i.e. ,both electronic switches are on. At this time, the negative electrode of the battery is directly connected to the P terminal of the protection board, and the protection board has voltage output.

Detailed information

Main functions: overcharge protection function, overdischarge protection function, short circuit protection function, overcurrent protection function, overheat protection function, equalization protection function.

Interface definition: The charging port and discharge port of the board are independent of each other and share the positive electrode B- is the negative electrode connected to the battery, C- is the negative electrode. of the charging port; P- is the negative electrode of the discharge port; pads B, P and C are all through-hole type and the diameter of pad holes is 3mm for each sensing interfacebattery charge ; was released as a DC pin holder.

Parameter description: Configuration of maximum operating current and overcurrent protection current value, unit: A (5/8, 8/15, 10/20, 12/25, 15 /30, 20/40, 25 /35, 30/50, 35/60, 50/80, 80/100), special overcurrent values ​​can be customized according to customer requirements.

Baidu Encyclopedia? >< /p>

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