Gooloo via Amazon offers its Gooloo Portable 600-amp Peak 15,000mAh Car Jump Starter/Battery Charger for $69.99. Coupon code "I8Z8O5EQ" cuts that to $44.79. With free shipping, that's $13 under our February mention, $155 off, and the lowest price we've seen. It features dual USB ports and safety protection. Deal ends May 5.