• Increase your phone's battery life with this rechargeable 4700mAh battery case
• Quickly and effectively solves the low power problem for your devices while on-the-go
• 4 LED indicator lights to show the remaining power of the battery
• Ultra-thin and precise cutout, easy to install and remove

Specifications:

• Material: TPU+ABS
• Battery type: A-grade lithium-ion polymer battery
• Input current: 5V 1800mA
• Output current: 5V 1500mA
• Working temperature: 0℃-45℃
• Battery capacity: 4700mAh
• Storage/Transportation Temperature: -20℃±50℃
• Cycle life: ≥300 times
• Charging time: ~4.5 hours