4 strings of 16.8V 40A lithium battery protection board( Comes with recovery function- AUTO Recovery)

This store is an enhanced version without balance

Scope of application: Lithium battery with nominal voltage of 3.6V, 3.7V( Including 18650, 26650, polymer lithium battery)

Product Size:46*60* 3.4mm( Balanced version)

product weight: 10.3g( Balanced version)

Charging voltage: 16.8V- 18.1V

Continuous discharge current( upper limit): 40A( If the heat dissipation environment is not good, please reduce the load current.)

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Continuous charging current( upper limit): 20A

Enhanced Edition: Suitable for electric drills with starting current below 80A and power below 135W.

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4 strings of 16.8V 40A lithium battery protection board( Comes with recovery function- AUTO Recovery)

Scope of application: Lithium battery with nominal voltage of 3.6V, 3.7V( Including 18650, 26650, polymer lithium battery)

Product Size:46*60* 3.4mm( Balanced version)

product weight: 10.3g( Balanced version)

Charging voltage: 16.8V- 18.1V

Continuous discharge current( upper limit): 40A( If the heat dissipation environment is not good, please reduce the load current.)

Continuous charging current( upper limit): 20A

Standard Edition: Suitable for electric drills with starting current below 60A and power below 100W.

Enhanced Edition: Suitable for electric drills with starting current below 80A and power below 135W.

Balanced version: Suitable for electric drills with starting current below 80A and power below 135W.

Note 1: Successfully started the drill Requires 4 15C- 20C power battery, or 8 10C- 15C power battery( Ordinary 18650 cannot start the electric drill! ! !) .

Note 2: Connect 0V, 4.2V, 8.4V, 12.6V, 16.8V strictly according to the diagram. Do not short circuit intentionally.

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Note 3: When using a brush motor type load, try to connect a non-polar capacitor in parallel to the positive and negative terminals of the motor.( Withstand voltage above 25V, capacity 10uF- 100uF) , to prevent the reverse peak voltage generated by the motor from interfering with the protection board or breaking down the MOS tube.

Note 4: When connecting 4 groups of batteries in series, please ensure that the voltage of each group of batteries is the same. If they are different, please fill each group of batteries separately before using them in series... During the discharge test, the group of batteries with a faster voltage drop is a poor battery.

Let me explain to some customers with poor electronic knowledge.: Balanced charging is only an auxiliary function. Try not to mix good batteries with bad batteries.! 4 sets of battery capacity/ The closer the internal resistance is, the better! ( The usage effect of 3 good batteries + 1 bad battery= The effect of using 4 bad batteries) .