DC 3.7V 5V 9V 2A Adjustable Step Up 18650 Lithium Battery Charging Discharge Integrated Module - دائرة شحن ورفع جهد لبطاريات ليثيوم
متوفر
This integrated module charges 18650 lithium batteries and provides adjustable step-up output at 5 V or 9 V up to 2 A. It combines charging management, discharge protection, and voltage boost, making it ideal for portable power supplies and DIY power bank projects