If you're going to carry a portable charger every day, it should be one that does a whole lot. This 10000mAh option has Quick Charge 3.0 and 18W Power Delivery ports to give you a fast charge via its USB-A and USB-C ports.
DBPower's 300A Portable Car Jump Starter can jump start a 2.5L gas engine up to 20 times on a single charge. Recharging takes about five hours via USB. It can also charge devices like your phone and tablet!