This deal has ended.
Get this Iogear GearPower White 11000 mAh Mobile Power Station (model GMP10K) for $29.99 plus free shipping at Newegg when you send in this $5 mail-in rebate. Even before the rebate, this was the lowest price we found by $6 and it's a great price for brand-name charger of this strength. It can charge two devices at one with USB out ports. There is no sales tax (except CA, NJ and TN).