Specification:

Input: 100-240V AC
Output: 4.2V DC 300mA/USB 5.5V

Features:

• LCD universal charger for all types of Li-ion 3.7V mobile phone batteries
• Constant charging current and voltage keep the battery fully charged and longer using life
• Automatically identify battery positive "+" and negative "-" reversed, battery also can be charged
• LCD display charging, but can't show battery charging percentage