Products > Development Board > BMS 4S 14.8V 16.8V 18650 lithium battery protection board 40A current

BMS 4S 14.8V 16.8V 18650 lithium battery protection board 40A current


Charging voltage: DC16.8-17.8V
Continuous discharge current: maximum 40A (if the heat dissipation environment is not good, please reduce the load current to use)
Continuous charging current: 20A max
Product size: 45*60*4mm
Applicable options: suitable for lithium batteries with a nominal voltage of 3.7V and a full charge of 4.2V (including 18650, 26650, polymer lithium batteries), and can be equipped with electric drills below 170W

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Specification
Product name: 4 series 16.8V 40A lithium battery protection board Charging voltage: DC16.8-17.8V Continuous discharge current: maximum 40A (if the heat dissipation environment is not good, please reduce the load current to use) Continuous charging current: 20A max Product size: 45*60*4mm Applicable options: suitable for lithium batteries with a nominal voltage of 3.7V and a full charge of 4.2V (including 18650, 26650, polymer lithium batteries), and can be equipped with electric drills below 170W

Note 1: To successfully start the electric drill, you need 4pcs 10C-20C power batteries, or 8pcs 5C-10C power batteries, 0V and 12.6V connecting wires, and use copper wires of more than 3 square millimeters (no nickel sheets!! ).

Note 2: Wiring 0V, 4.2V, 8.4V, 12.6V strictly in accordance with the diagram, do not touch any components on the board when welding the wire, and do not intentionally short-circuit.

Note 3: When the battery is welded for the first time or is being charged, as long as a single battery exceeds 4.2V, the 430 resistance will heat up and discharge (discharge to about 4.19V to stop heating). If the 430 resistor is very hot (you can't touch it when it is too hot), please check whether it is connected to the wrong wire.


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