Features: USB output function: Built with 5V / 1000mAh output Flexible size: One-slot charging and management system, Micro USB DC 5V input port, portable to carry around 500mAh, 1000mAh charging current for selection CC / CV charge mode applies to the battery to maintain a constant current flow and protect battery and users' safety LED indicators display the charging status 25pct - 50pct - 75pct - 100pct When you charge LiFePO4 or 3.85V battery, must fix the charging mode: Identifies 1.2V Ni-MH / 3.7V Li-ion battery automatically and select manually for 3.85V battery Li-ion and LiFePO4 battery Refresh function for 0V battery Protections: over-charge, over-discharge, reverse polarity, short circuit protections Identify dead or bad batteries Parameters: Constant charging with cut-off current less than 100mAh Output voltage: 1000mAh and output voltage is 4.75 - 5.25V Cut-off voltage for output: 3.0 +/- 0.1V Standby current: No more than 15mAh Output current: 500mAh / 1000mAh Cautions: 1. Can't charge battery type of 1.6 - 2.2V 2. Batteries are not included Quantity: 1 Set Note: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 0.5-1cm measuring deviation due to manual measurement. Package includes (No Retail Package ) : 1 x Charger (not include battery) 1 x USB cable 1 x Manuals