5 string 18.5V 21V 18650 lithium battery protection board

Features:

4.2V equalization voltage, the equalization current is 66mA;

use:

Charging balance

Technical parameters :

Equalized voltage and equalized current

Precautions:

The equalization board is suitable for a lithium battery pack without balanced charging,

and the charging balance makes the battery packs in the battery pack fully charged at the same time.

The equalization film does not have a charge and discharge protection function,

and cannot replace the protection board. When the battery is charged,

the battery that is fully charged is discharged through a resistor to balance the shunt .

Product size: 37.3*25.8*2.4mm

Solder joint description:

B- Connect the negative pole of the battery pack

B1 connects the contacts in battery 1 and battery 2

B2 connects the contacts in battery 2 and battery 3

B3 connects the battery 3 to the contact in the battery 4

B4 connects the contacts in battery 4 and battery 5

B5 is connected to the positive battery pack