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

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)

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

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

Note 1:Successfully starting the electric drill requires 4 15C-20C power batteries, or 8 10C-15C power batteries (ordinary 18650 cannot start the electric drill! ! ! ).

Note 2:Strictly connect 0V, 4.2V, 8.4V, 12.6V, 16.8V according to the diagram, do not intentionally short-circuit.

Note 3: When there is a load with a brush motor, try to connect a non-polar capacitor (withstand voltage above 25V, capacity 10uF-100uF) in parallel with 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 Break down the MOS tube.

Note 4: When 4 groups of batteries are connected in series, please ensure that the voltage of each group of batteries is the same, if not, please fully charge each group of batteries separately and then use them in series. . . During the discharge test, the group of batteries with a faster voltage drop is the poor battery.

For some customers with poor electronic foundation, please explain: equalizing charge is only an auxiliary function, try not to mix good batteries and bad batteries together! The capacity/internal resistance of the 4 groups of batteries is as close as possible! The use effect of the poor battery = the use effect of 4 poor batteries).