If you have a phone and the battery drains quickly, you might want to check these settings on your phone to see if they can be consuming your phone's battery.
Many users take it for granted but making a few adjustments on your phone can definitely change your battery life.
Here is some great information on how to create a hotspot using your Mac computer. It's similar to how your share your hotspot on your phone only this time it's with a Mac computer.
You will be surprised on what you can do if you put your mind to work and use the resources availalbe to you in a productive way.