OneSource™ Heated Sleeping Bag & Rechargeable Battery Late-season camping trip or backyard get together coming up? Stay warmer with the Coleman® OneSource™ Heated Sleeping Bag. The mummy-shaped bag keeps you warm in temperatures as low as 32°F using 2 heating pads—one at the core of the sleeping bag and one at the roomy footbox—distributing heat throughout. Power your heated sleeping bag using the lithium-ion rechargeable battery, an interchangeable battery that works with all Coleman OneSource products, and eliminate the need for multiple power sources by charging your devices through the USB port. One fully charged battery gives you 2 hours on high (107°F), 2.5 hours on medium (103°F), 4 hours on low (96°F), or 3 hours on pulse setting (low to high) of warmth. Spend more time relaxing and double the runtime by adding a second battery (sold separately) to the dual port dock that also charges your phone or other devices. A semi-sculpted hood and double batt, offset quilt construction surround your head and body to help eliminate potential cold spots. The Thermolock™ draft tube prevents heat loss through the zipper and Coletherm® insulation provides better heat retention with less weight. The ZipPlow™ zipper means a snag-free opening and closing. A durable, ripstop-reinforced polyester cover ensures you get to use this sleeping bag season after season and it’s machine washable for easy cleaning after you remove the heating pads, wires, dock, and battery. When you’re ready to head home, pack the sleeping bag inside the included stuff sack. Coleman® OneSource™ powers your outdoor gear and devices with one interchangeable rechargeable battery system Mummy-shape design with semi-sculpted hood helps lock in heat, footbox adds room to move Designed for people up to 6 ft. 2 in. Stay warm in temperatures as low as 32°F 2 heating pads with 4 adjustable heat settings, one at the core and one at the footbox, help evenly distribute heat; each powered by a 4800 mAh lithium-ion battery (included) that keeps the heat going for 2 hours on high (107°F), 2.5 hours on medium (103°F), 4 hours on low (96°F), or 3 hours on pulse setting (low to high) Dual port battery dock holds up to 2 rechargeable lithium-ion batteries (2nd battery sold separately), doubling the runtime; also charges your phone or other devices Thermolock™ draft tube prevents heat loss through the zipper, Coletherm® insulation provides better heat retention with less weight, and the special quilting construction helps eliminate potential cold spots ZipPlow™ zipper allows for snag-free opening and closing; durable ripstop-reinforced polyester cover resists tears Machine washable (remove heating pads,