Sears offers the DieHard 1,150-amp Portable Power Source, model no. 71688, for $99.99. Coupon code "SEARS2014" cuts it to $94.99. With free shipping, that's $5 under yesterday's mention, the lowest total price we've seen, and a current low by $6. It features a digital display, automatic USB protection, and 100 PSI automatic digital air compressor.
Of note, Shop Your Way Rewards members will earn a Sears credit with this purchase and may be eligible for additional credits and discounts.