Groupon offers The Beast 15-in-1 Jump Starter and Multipurpose Power Source, model no. 2003, for $99.99. Coupon code "SALE3" cuts the price to $84.99. With free shipping, that's $15 under our mention from last spring and the lowest total price we could find by $31. It features a 400-watt power inverter, two 120V AC covered receptacles, solar trickle charger, 12V DC receptacle, 5V USB port, 120-PSI air compressor, and booster cables. Deal ends February 24.