5V2.1A Power Bank 10000mAh with USB Charging Port for Heated Vest

【5V2A Battery Pack Special for Heated Vests】Small size and large capacity, compatible with most heated devices (heated jackets for men, heating vests, and pants) on the market, and suitable for charging smart phones. Note: This is 5v 2a heated vest battery pack, compatible with Vanvanjek/Simoobee heated vest 【Multiple safety protection 】We adopt the latest version of the intelligent chip and high-quality Li-polymer. Its conversion rate is 30% higher than its predecessor and it can protect your devices against overvoltage, excessive current, overcharging, and short circuit, so as to ensure your safety in use. 【Plug in for Automatic Starting up 】It was specially designed for heated clothing. When you wear heated clothing, it is inconvenient to replace the battery. With our products, you do not need to press the switch button because it will be power on as soon as the battery was connected. It will sleep automatically when it is not working. 【Small Size, Large Capacity】With a higher conversion rate, it can continuously heat vests for 3-8 hours (3-4hours high temperature, 5-6 hours medium hours, and 7-8 hours low temperature ). It's portable and weighs just as much as a mobile phone. 【Perfect Spare Battery for Heated Clothing】Compatible with most heated devices (heated jackets, vests, and pants) on the market , with seamless battery replacement, it can be taken as an additional battery pack, which enables you to enjoy more time outdoors and keeps you warm at any time.