... 1: AC 100-240V / 50-60HZ4. Input 2: DC 12V / 400mA5. Output: DC 4.2V / 450mA6. Scope of application: rechargeable 18650, 14500 ... , 18500, 17670, 17500 battery7. In the process of charging, the ... short time,The small current charging, and high current, move in circles, until the charge to the cut-off voltage, charging ...