Update: Deal over.
Today only, Amazon has these 2 Poweradd power banks on sale.
- Poweradd [Upgraded] Poweradd Apollo 2 Solar Charger 12000mAh Portable Solar Panel Power Bank Waterproof/Shockproof/Dustproof Dual USB Port Solar Battery for Emergency Outdoor Camping Travel: $17.99
- Poweradd [Upgraded] Poweradd Pilot Pro3 30000mAh Power Bank (Dual Inputs/4A, 3 Outputs/4.5A) External Battery Pack with High-Speed Smart Charge for iPhone, iPad, Samsung, LG, Nexus and More: $29.99