Features: 3.7V Lithium battery charge and discharge integrated module.Input DC 4.5-8V, output 4.3-27V adjustable, use it to build a 9V or 12V charging power pack.As a DC 5V input interface.Charging voltage (BAT+) 4.2V, charging current about 1A, with overcharge protection.Output current: 5V 1.4A; 9V 0.8A; 12V 0.6A.Specifications: Input voltage: 4.5-8V DCOutput voltage: 4.3-27V DCCharging voltage: 4.2V DCCharging current: 1A maxDischarge current: Maximum 2AMaterial: Plastic + MetalSize: 3.3*2.3cm Packing list: 5 x Modules