5000 mAh huge capacity. Smart replacement power bank.Supported for PTAHDUS Heated Jackets. Heated Hoodies and Heated Vests | Output: DC 7.4v/2.0A; Up to 8 working hours in low settings, 6 hours in medium settings, 3 hours in high settings. | Getting long-lasting warmth in the winter by taking this as an additional battery pack, enjoy more warm and happy outdoor activities. | Quickly delivery service. Shipping from US. Transport time is usually about a week. | Updated battery is lighter and smaller. Easy to carry without feeling bulky. Supporting charging your smart devices when emergency