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

Description:

? Before use, before debugging, the default output is about 9V.
? Input voltage 4.5-8V.
? The output voltage can be continuously adjusted 4.3-27V
(4.3V or more, 27V or less, any voltage can be output, you can adjust the voltage counterclockwise).
? Charging voltage 4.2V Charging current is 1A
? Discharge current 2A output current to calculate
? Output reference maximum current 5V 1.4A , 9V 0.8A, 12V 0.6A
? Static current is about 0.5 mA
? Overshoot protection Over discharge protection None (it can be said that there is 2V cut-Off boost, but there is still 2V without blocking the output)
? Cut-off boost 2V, depending on the situation, whether to add a protection board