OUBOHK Heated Clothing Women's Thick Winter Vest Electric Heating Waistcoat Put the lithium battery into the waist pocket and plug heating carrier of the clothes, power plugs (DC plug) Put the lithium battery into the waist pocket and plug heating carrier of the clothes, power plugs (DC plug) According to the actual temperature needed, adjust the heating clothes switch gear. Rated voltage :7.4V DC battery capacity:4400mAH Rechargeable battery life: Charge and discharge  500 times