JETech® USB Power Bank 3000mAh Ultra-compact and portable external backup battery pack and charger for iPhone 6/5/4, iPad, iPod, Samsung Devices, Smart Phones, Tablet PCs (3000mAh, Black) (Wireless Phone Accessory)
I am very happy with this battery, when my load as it is blue, then red when it loads itself and then green when it is charged. Its autonomy is very nice I bought for my daughter still out of power.