Lumsing Direct via Amazon offers the Lumsing 13,000mAh Dual USB Portable Battery Pack in Black, Gold, or Silver for $18.99 $17.99. Coupon code "40OFFLUM" cuts it to $11.39. With free shipping, that's $29 off list, $3 under our August mention, and the lowest total price we've seen. It features a 4-LED battery indicator. Deal ends December 5.

Update: The price has dropped to $17.99 making it $10.79 after coupon.