Eachinedirect via Amazon offers its Eachine 6,000mAh Super Compact Portable Charger in Black, Pink, or Green for $20.99. Coupon code "5REYLXJS" drops it to $7.49. Plus, Prime members bag free shipping. (Non-members can spend $35 for free shipping; otherwise, it adds $6.22.) That's $51 off list and the second lowest price we've seen for a 6,000mAh charger. It features an LCD screen and purports to charge smartphones up to two times on a single charge.