Aleratec 8000mah External Battery Charger is a compact and stylish portable charger. It's compact enough to stick in my purse and take along when I'm on the go. This is a powerful portable charger that's perfect for taking with me when I'm running errands, commuting to work and especially when I'm at the kids' games. It's a sturdy charger that has one powerful punch. This portable charger has two USB inputs: one 2.1A for power-draining iPads and Android tablets and one 1A for less current demanding smartphones. It also has anti-slip grips and a large, easy-to-read LCD display that shows power levels. I love that I can take this charger to my boys' games and keep my daughter's tablet charged. It's really nice to keep her occupied while I'm enjoying the game. It's also great t have when I leave work to catch a game only to get there with a low battery. I can now charge it while I'm there instead of waiting to leave and hoping my phone doesn't quit working while I'm at the game. Overall, this is a high quality portable charger. Highly recommend. I received this charger in return for my unbiased review. You can check out more about Aleratec 8000mah External Battery Charger @ http://www.amazon.com/Aleratec-8000mah-External-Battery-Charger/dp/B010TPPPKA/ie=UTF8?m=A2UZVIGPN3KFSH&keywords=power+bank.