Specialized Battery For Heated VestOur battery is tailored for heated jackets, heated vests, and heated pants. It boasts USB, Type-C, and 7.4V DC output ports. The DC port is compatible with 3.5mm, 3.8mm, and 4.0mm plugs, and is compatible with most 7.4V heated clothing on the market (compatible with ORORO and Venustas heated clothing). No suit for 5V USB plug and 12V heated devices. Large Capacity and Long LastingOffering 4-6 hours on high, 6-9 hours on medium, and 9-14 hours on low, the 16000mAh battery pack for heated vest guarantees warmth throughout your day. It's perfect for outdoor adventures or chilly commutes, ensuring you'll stay comfortable and cozy. Safe & AssuranceOur power bank for heated vest is built with high-quality lithium polymer and smart chip technology, achieving both UL and CE certifications. It can protect your devices against overvoltage, excessive current, overcharging, and short circuits. Enjoy longer service life and superior safety perfo