I cannot say enough about this portable battery pack. I use this everyday for my smartphone and camera. The 5000mAh storage is enough for couple charges on both batteries in one day. Enough for one day's use without having to worry about plugging into wall. when the day is finished, I just rotate the outlet plugs outward and plug into wall to charge. In the morning, the battery pack is ready for the day again. I have purchased 2 so far and loving it! I highly recommend this for your everyday essentials. All you need is your usb type cable to charge your device and you're ready. Five Stars All Day!