A:Answer Assuming you are referring to MacBooks equipped with the USB-C ports, this product would not be optimal for charging a MacBook Pro 13''. While it theoretically can charge the notebook's battery, it would not be able to charge effectively while you use the notebook since the power draw would be greater than what this power bank could supply (Max 18W). If charging your MacBook is the main use for purchasing a power bank, you would want to look at Anker's power bank options that have greater output capabilities like their 26800 PD with 45W output. It's heavier, more expensive, but you will be able to use your MacBook Pro normally while the power bank changes it (to the capacity the power bank is capable).