Oxa USA via Amazon offers its DBPower 500-amp Peak Car Jump Starter and 10,800mAh Portable Battery Pack for $49.99. Coupon code "R4DSVNNI" cuts it to $29.99. With free shipping, that's $2 under our November mention, $20 off, and the lowest price we've seen. It features a 2.1-amp USB outlet, USB 3.0 outlet, LED power indicators, and an LED flashlight. Deal ends February 28.