Bests & Worsts Reviews from Amazon

Truth be told, I originally came here to buy the Anker Astro E1 Candy-Bar Sized version as we prepare for a trip to Walk Disney World (it's what all the blogs told us was best). However, for about ten bucks more I realized that I could get this one with higher capacity. We'll have 3 iPhones with us during the trip, so this one actually seemed to make more sense. Out of the box, it took about 7-8 hours to fully charge (battery meter lights will turn off when full) using the Micro USB. I'm thinking that USB C might charge a little faster, then again both ports could be 2 Amps. There are warnings not to use both the micro USB and USB C at the same time to charge, which begs the question why they didn't take this new product and just make it one or the other. It's about three ounces heavier than the candy bar and certainly bigger though flatter. In fact, when in your hand it's shaped almost identical in size and weight to my iPhone 6s (with Apple case). I found that the regular USB port was a little snug, but that's a good thing (I think). Like others have pointed out, the USB C would be nice if it could go both ways (it is an input that charges the battery but not output to your device). It's got a funky texture (good way) on one wide with the Anker logo and flat dull finish on the other. Being shaped just like an iPhone 6, it helps us make use of the Anker IPX8 Waterproof Phone Pouch for rides like Splash Mountain or Kali River Rapids. It fits perfectly inside. Trickle-Charge is as simple as pressing the button twice (or hold for two seconds) and the fourth light will turn green. When you're ready to switch back, you just tap it again. Pretty simple. Turning the charger itself on is even easier -- Just plug in your cable and the lights turn on and it charges. Unplug your device, the lights go off. No more worrying about if you left it on or off! It's new, so we'll see how it holds up, but Anker does offer a great 18-month warranty. I've replaced a few screen shields under their warranty in the past for iPhone and iPad and they have one of the best customer service teams around if and/or whenever an issue does arrive. I do wish that it had come with a genuine Anker Lightning or USB C cable of short length (12-18 inches) for charging phones. Otherwise, it seems to be pretty solid so far. UPDATE: After a few days of use, it lives up to the challenge. The only concern that I ran into is when I was charging my iPad Air 2. Both ends of my cable became extremely warm to the touch, and even part of the battery did, too. I don't think I'd leave anything bigger than an iPad Mini plugged into it without supervision. None of my iPhones (or AirPods) seemed to heat up using the same exact cable.