<p>Features: Automatic recognition and conversion is available on a variety of 3.6V lithium ion rechargeable batteries. Current and Vmax detection, displaying when fully charged, protecting the battery. When charging, the red light flashes ,the charger turns green while finished charging. Turn into trickle compensation, long - term plug - in standby. Comprehensive protection function, the battery is installed in reverse, short circuit does not charge, in order to prevent charge for normal battery. Portable and convenient design to support global USB directly charging. With output of current at 0.5A, the flashlight charger is high speed to make charging faster than normal. Specification: Material: ABS Size: 7X6X4.8cm/2.8x2.4x1.9inches Input Voltage：5V 0.5A MAX Input Current：500MA Package Includes: 1x 3.7V Lithium Battery Charger Size: 7x6x4.8cm/2.8x2.4x1.9inches note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. </p>