GreenZech 3.7V 9V 5V 2A Adjustable Step Up 18650 Lithium Battery Charging Discharge Integrated Module
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Feature: Inputvoltage:4.5-8V. Outputvoltage:continuousadjustable4.3-27V(Counterclockwisetoboostvoltage). Chargingvoltage:4.2V. Chargingcurrent:upto1A.
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