Aukey Direct through Amazon has their massive AUKEY 30000mAh Power Bank with Lightning & Micro USB Input, 4.8A Dual USB Output, in black, model no. PB-N39, for $31.99 (56.99 – 20% instant savings – 13 coupon) with Free Shipping for a limited time. To get the discount, use the coupon code: AUKEYPB7 at checkout.

The AUKEY PB-N39 Power Bank features a huge 30000mAh capacity, two Ai USB ports with up to 2.4A of dedicated adaptive output per port, built-in flashlight and LED battery indicator, and can be recharged using either Lightning cable or micro USB cable.