The Efest SODA Battery Charger lets you charge your batteries to ensure you don??????t ever run out of power on your favorite mod! This powerful charger lets you charge two 3.7V rechargeable separate batteries at once, making sure your vape experience is fresh and smooth. The two battery slots prevent over-voltage, over-charging, short-circuiting, and protect against polarity protection. Compatible batteries include the following Li-ion batteries: 10440/14500/14650/16340/16650/17650/17670/18350/18490/18500/18650 Product Specifications: AC input Power AC 100-240V 50/60Hz DC input Power DC 12V 1A DC Output Power Dc 12V 1A 5 CC current 500m A??10% 1A CC current 1000m A??10% Auto cut-off current 4.23??0.05V CV cut-off current < 10% max current Standby current <20mA TC current(battery voltage 2-2.9V) 10% max current Activation current (battery voltage<2V) 10m A~20 m A Maximum Output current 1A Battery output cut-off voltage 3.0??0.05V Auto recharge voltage 3.9??0.15V Operation Temperature -40??????~+70?????? Storage Temperature 0??????~40?????? Package Contents: 1 Efest SODA Charger 1 AC Wall Plug