Technology is just getting better every year. There are more selections of items every year and this is only one of them. This is called the Anker PowerCore ii 10000 portable charger. It has all of the components to charge phones really fast. It’s not like any other brands of portable chargers that you may have. The fast charge is called the IQ 2.0, which is up to 18 volts for charging depending if your phone has fast charging or not. It has a capacity of 10000mAH which can charge your phone up to 3 times depending on the battery size of your phone. The battery can recharge itself in 4 hours when the majority of the high capacity portable chargers take more than 7 hours to recharge. Lastly, Anker has a good customer service so that they can fix your problems if you’re having an issue with an product.
Here is the link to learn more or to buy this portable charger.
This item relates to engineering, because it has to have the connectors to actually charge the phone. Another material that relates to engineering is the hard cover with stripes.