Newegg offers the Rosewill Powerbank 11,200mAh Dual USB External Backup Battery Charger, model no. RCBR-13020-BK, for $26.99. Redeem this $20 mail-in rebate to cut the price to $6.99. With 99 cents for shipping, that's $4 under our July mention and the lowest total price we've seen. (It's the best now by $22.) This charger uses Samsung SDI batteries and features a 1A port, 2A port, LED flashlight, and LED battery indicator. Rebate expires February 19.