Our durable battery heated camping chair is built with a solid steel frame and 600/300 Denier Polyester to handle all four seasons. The 7.4V 6500 mAh battery powers two heat zones across 3 heat settings: low (113F / 9 hrs), medium (122F / 6 hrs), and high (131iF / 4.5 hrs) and doubles as a phone charger! Fully charge your heated portable camping chair in 3-4 hours for an industry leading 9 hours of electric warmth. At 11lbs the Terrain is one the lightest chairs on the market but can still support up to 325 lbs storing is easy with our oversized bag eliminating the usual struggle.