5pcs 3.7V 9V 5V 2A Adjustable Step Up 18650 Lithium Battery Charging Discharge Integrated Module

Feature Input voltage 4 5 8VOutput voltage continuous adjustable 4 3 27V Counter clockwise to boost voltage Charging voltage 4 2V Charging current up to 1ADischarge current the maximum 2AOutput reference maximum current 5V 1 4A 9V 0 8A 12V 0 6AQuiescent current about 0 5 mAOvershoot protection YesOver discharge protection None also can be said yes because 2V cut off boost but does not block the output output has 2V Deadline boost 2V depending on whether added the additional protection boardSize 3 3 x 2 3 x 0 9cmConnecting example VIN connect 5V solar panel BAT terminal can output 4 2V to charging 3 7V 18650 battery OUT side can output an adjustable voltageCan be used for multimeter modified lithium battery charging Package includes 5 x Lithium Battery Charging Discharge Integrated Module