NOTICEIt doesn't work with 7.4V or 12V DC input heated vest.Experience unparalleled convenience with the battery pack for heated vest, designed specifically for Heated vest power bank needs. This Small, lightweight power bank for heated vest ensures you stay warm during winter.This mini battery also can use for phone charges like a portable power bank.It can do PD20W and QC22.W fast charging. Various charging portsFeaturing a USB A and USB C interface, this Heated vest battery pack offers universal compatibility. The 5V 2A/3A Power bank ensures efficient charging for your Heated vest battery pack.Meanwhile this usb c port and usb A port also can function like a portable charger power bank to charge phone. Suitable for USB A heated vestPerfect for both men and women, this portable charger battery pack for heated vest is ideal for winter use. The rechargeable battery pack for heated vest ensures long-lasting warmth.It also can work as a fast chargig power bank to charge p