Anker PowerCore+ 20100 USB-C Batteria Esterna / Power Bank (Output da 6A, Tecnologia PowerIQ e VoltageBoost) per Apple MacBook, iPhone, iPad, Samsung

I bought Anker PowerCore + 20100 USB-C External Battery / Power Bank (6A Output, PowerIQ and VoltageBoost Technology) for Apple MacBook, iPhone, iPad, Samsung and I saw now that I can not charge my mac book pro, I bought them an exquisite and heavy external battery just for the mac book pro, can you help me find a new adapter? thank you