X-Dragon Direct via Amazon offers its X-Dragon 15,000mAh Solar Portable Battery Pack in Blue or Orange for $23.99. Coupon code "B3PQ7KKQ" cuts that to $16.79. Plus, Prime members bag free shipping. That's $7 off and the lowest price we could find. It features LED lighting with three modes, a cigarette lighter, and dual USB ports. Deal ends December 9.