Features: 1.100% brand new and high quality. 2.Home or travel wall AC multi functional universal battery charger. 3.Automatically stops when charging is complete. 4.Fully protect against over-current, overcharging and overheating for safe and fast charging. 5.Wide range charging voltage. 6. Automatic identification and conversion of various 3.7V lithium ion rechargeable batteries. 7. When charging, the red light will be on, the full turn will turn green, and the automatic stop will be charged. Transfer to turbulent flow. 8. Comprehensive protection function, the battery is reversed, the short circuit is not charged, and the absolute battery is charged.