As one of its daily deals, 1Sale offers the 7,200mAh Solar PowerBank Portable Battery / Charger in Black or Silver for $17.99 with free shipping. That $5 below our August mention and the lowest total price we've seen. (It's a current price low by $18.) It can be charged with solar power or electricity and includes Apple 30-pin, micro USB, mini USB, Nokia DC2.0, and Samsung charging tips. Deal ends today.