I find the charging shell to be an awesome idea but this is what I will be investing in...Amazon.com: RAVPower? Dynamo-On-the-Go RP-PB07 Super High Capacity Power Bank / External Battery Charger (10000mAh Capacity / 1A & 2A Dual USB Output) for Apple : The New iPad, iPad 2, iPhone 5,iPhone 4S 4...