Bảng Mạch Bảo Vệ Pin Lithium 3s 20a 18650 Li-Ion

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Scope of application: Lithium batteries with nominal voltages of 3.6V and 3.7V (including 18650, 26650, polymer lithium batteries)

Product size: 59*20*3.4mm

Product weight: 4.3g

Charging voltage: 12.6V-13.0V

Continuous discharge current (upper limit): 20A (If the heat dissipation environment is not good, please reduce the load current to use)

Continuous charging current (upper limit): 10A


Note 1: Successful start of the electric drill requires 3 power batteries of 15C-20C, or 6 power batteries of 10C-15C (ordinary 18650 cannot start the electric drill!! !); if it happens to be the battery is too small or the power of the electric drill is too large Please contact the owner again to tell you how to solve the problem.

Note 2: Wiring 0V, 4.2V, 8.4V, 12.6V strictly according to the diagram, do not intentionally short-circuit.



Note 3: For loads with brushed motors, a capacitor (10uF-1000uF) must be connected in parallel to the positive and negative terminals of the motor to prevent the reverse peak voltage generated by the motor from interfering with the protection board or puncturing the MOS tube.

Note 4: When connecting 3 sets of batteries in series, please ensure that the voltage of each set of batteries is the same. If they are not the same, please charge each set of batteries separately and use them in series. . .

During the discharge test, the battery with the faster voltage drop is a bad battery.

Explain for some customers with poor electronic foundation: Never mix good batteries and bad batteries together! The closer the capacity/internal resistance of the 3 sets of batteries, the better! (2 good batteries + 1 poor battery use effect = 3 poor battery usage effe