About this item Input voltage: 4.5-8V DC; Output voltage: 4.3-27V DC (Continuously adjustable); Charging voltage: 4.2V DC Output Current: 5V 1.4A; 9V 0.8A; 12V 0.6A; Charging current: Max 1A, Discharging current: Max. 2A These lithium ion charger 18650 modules can be used for multimeter, converted to lithium battery charging Note: The OUT+Port can output an adjustable voltage Package Included: 8Pcs 2A USB 18650 Lithium Li-ion Battery Charger Module Dimensions: 6.18 x 3.94 x 0.71 inches