Have you ever entertained some guests at your house and a friend asks for a charger? This is an absolute must have because it as the capability to charge almost any device a friend might bring over. The only connection it's missing is the c cable but because I have that type of phone it's not needed. I wish it could charge more than one device at a time but it's handy to have anyways.
https://www.amazon.com/Charger-Cable-lightening-cable-Micro-USB/dp/B0786J8YBT