As one of its daily deals, That Daily Deal offers the Pilot Electronics 5,200mAh Portable Battery Pack / Heat Pack in Camo for $12.49 with free shipping. That's $3 under our mention from two days ago and the lowest price we could find now by $28. It features variable heat settings from 109°F to 120°F and up to 3.5 hours of heat per charge. A micro USB cable is included for charging. Deal ends January 15.