eCase via Amazon offers the Kmashi 15,000mAh Dual-USB External Battery Pack
in Black/Red, model no. MP836, for $19.99. Coupon code "RJTZMPYG" cuts it to $13.50
. Plus, Prime members receive free shipping
. (Non-members can spend $35 or more to qualify for free shipping; otherwise, shipping costs $6.74.) That's $46 off list and tied with our mention from last month as the lowest total price we've seen for any 15,000mAh battery pack. It features a 2-amp USB port, 1-amp USB port, status LED lights, microUSB cable, and allows for charging two devices simultaneously.