Special Note】 Please be sure to use an AC power adapter with output ≥5V-2A to charge the battery,if you use a 5v-3A 9V-2.22A 12V-1.5A fast charging adapter : it can be fully charged in 5-7 hours 。If you use a 5V-2A charging adapter : it can be fully charged in 9-11 hours 【High efficiency heating system and 20000mAh Battery Pack】Axnol heating pants use high-quality carbon fiber heating system, which has a higher heating temperature than traditional heating system, Also come with a larger heating area, and a safer heating area. Axnol heating pants come with a Battery Pack, which uses a 7.4V voltage output. Compared with the traditional 5V solution, the heating efficiency of the pants is greatly improved, and it can be quickly heated by connecting to the battery. 【Distributed heated zones and 3 Temperature Control】The heated pants use high-quality carbon fiber heating elements, with 6 heating zones ，for the 3 core parts of the lower body, abdomen, waist and knees Produces consistent heat that helps keep these areas warm. Our intelligent switch system can control each heating area independently, and the heating system is designed with 3-speed temperature adjustment, according to the environmental conditions, you can easily switch different temperatures. 【FOR ALL OCCASIONS】 This outdoor heating pants can be matched with jackets, sweatshirts, jackets or heating vests. It is very suitable for outdoor activities, hunting, skiing, fishing, motorcycles, bicycles, camping, mountaineerin