Product Description
Deacription:
3 strings of 12.6V 20A lithium battery protection board (with recovery function - AUTO Recovery)
Scope of application: Lithium batteries with nominal voltages of 3.6V and 3.7V (including 18650, 26650, and 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)
Continuous charging current (upper limit): 10A
Standard version: suitable for electric drills with starting current below 40A and power below 65W.
Enhanced version: suitable for electric drills with starting current below 60A and power below 100W.
Note 1: Successfully starting the electric drill requires 3 15C-20C power batteries, or 6 10C-15C power batteries (ordinary 18650 cannot start the electric drill! ! ! ).
Note 2: Strictly connect 0V, 4.2V, 8.4V, 12.6V according to the diagram, and do not intentionally short-circuit.
Note 3: When there is a load with a brush motor, a non-polar capacitor (withstand voltage above 25V, capacity 10uF-100uF) must be connected 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 3 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.
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