USB Battery Charger, 18650 Battery Charger, Smart USB Fast Charging LED Battery Adapter with Power Indicator

Product Name: Universal Charger for 3.7V-4.2V Lithium Batteries. Suitable for all sizes of rechargeable lithium-ion batteries (flat head, convex head). 1. Product Features: High-current USB charging for greater reliability. 2. Intelligent charging, automatic shut-off indicator, battery protection. 3. Red light illuminates during charging, turns blue when charging stops automatically. It can be plugged in for extended periods to conserve power. 4. Comprehensive protection function: if the battery is installed upside down, charging will not be activated. Input Voltage: 5V. Charging Current: 500/1200mA. This charger can charge 26650/18650/17670/14500/10440/16340 batteries.