HXYP-4S-BMD1 4S 14.8V 16.8V 20A 18650 Lithium Battery Protection Board Overcharge and Overdischarge Short-circuit Protection

Specification
Model:HX-4S-BMD1
Size:35*35*3.6mm
Overcharge voltage range:4.25v÷0.05v
Over-discharge voltage range:2.5v÷0.05v
Maximum operating current:15A
Upper limit instantaneous current:20A
Quiescent current
Charging voltage:16.8V
Short circuit protection:Protected, Delayed self-reocvery
Package included
1 x Lithium Iron Protection Board
Note
This protection board cannot be used for Xenon lights, electric drill battery packs, electric fish machine battery packs, electric bicycle battery packs, children’s car batteries, motors, and 1W fisheye LED lights.
Note 1:Wiring 0V (B-), 3.7V (B1), 7.4V (B2), 11.1V (B3), 14.8V (B4),18.5V (B5) ,22.2V (B6),25.9V (B+)strictly according to the diagram, don’t intentionally short circuit!
Note 2:After the line is connected, it needs to be charged before output.
Note 3:When connecting 7 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 then use them in series. During the discharge test, the battery with the fast voltage drop is a bad battery.
Note 4:Do not mix good batteries and bad batteries together! The closer the capacity/internal resistance of the 7 groups of batteries, the better! (4 good batteries + 3 bad batteries = 7 bad batteries) .