Cabela's 7-Volt Lithium 4.0Ah Battery With Remote -
This slim external battery pack allows you to power a variety of heated products. The lightweight construction reduces bulk and allows for easy carry. Battery provides up to 4,000 milliamperes of power and is equipped with a built-in, three-setting controller, LED power indicators that display battery strength and a battery-powered remote control with three setting controls for convenient operation. Requires four to six hours of charge time prior to use.