Jackery Giant+ 2-USB Portable External Battery Charger (12000mAh) for $29.95. Shipping is free on orders over $35. If needed, use this Filler Tool to pad the order for free shipping. Here is a screenshot for reference. This ultra high-capacity portable charger with dual USB port has a relatively large capacity of 12000mAh and its dual USB ports (5V/2.1A and 5V/1A) allow for simultaneous charging of iPad, iPhone, Android, and more at high speed.