Jackery Giant+ 2-USB Portable External Battery Charger (12000mAh) for $29.95

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.

Kensington K38021 Portable Power Pack for Mobile Devices for $29.99

Kensington K38021 Portable Power Pack for Mobile Devices for $29.99.  Here is a screenshot for your reference. Order online to confirm price and availability and select in-store pickup to save on shipping.  Otherwise, shipping is $3.99.  This power pack powers and recharges portable media players via the included USB charging cable.  It usually sells for over $45.