Watch this video to learn more about pass-through charging in power banks. If you want to know what pass-through charging is and how it works then this short video should give a good idea. Basically, with this feature, you can simultaneously charge your power bank and have the power bank charge another device. Now, you should know that not all portable chargers come with pass-through charging. So if you're after one of these, then you need to make sure it comes with the feature. This is why we put a list together of the best power banks with pass-through charging right here: https://www.powerbankexpert.com/power-bank-with-pass-through-charging/