NOTE:Portable Emergency Phone Charger Power Bank By 1pcs 18650 Battery with Micro USB/ USB-C for Samsung Xiaomi Huawei
Features:

• 1. Charge the phone.
• 2. Can be used as an adapter.
• 3. Can be used as a powerful 18650 lithium battery charger.
• 4. Temperature protection. overvoltage protection. electromagnetic field protection. overcurrent protection. overload protection. short circuit protection. anti-reverse connection protection. overload protection. overcurrent protection. recovery protection
• 5. Universal portable emergency charger for mobile phones Small mini power supply for mobile phones is small and exquisite. Brand new. no charging cable required. plug and play.
• 6. DC-DC fast charging drive built-in circuit. using two parts of the battery can boost to 5v. the transmission efficiency can reach more than 90%. using the new 18650 battery can charge the Android phone (2500mAh battery) to 40% in 30 minutes.
• 7. Built-in protection circuit. when the battery is used or the device is fully charged. it will stop charging by itself.
• 8. Just 1 18650 battery. very easy to buy anywhere. so you can charge your android phone/mp3/mp4/psp/gps anytime.