I have been putting off thinking through the power options for my e-checklist, simply out of laziness. Decided to take a few minutes on the couch to look into it while I wait to meet up with my friend to start working on our projects again.

a quick google search revealed the following, which I intend to verify later:

•Zero idle - ~65 mA

Disabling HDMI and the on board LED, while running Raspbian Jessie Lite should allow me to run at about 30mA. I plan on looking into under clocking the Zero as well if that's an option. I'm shooting for 16 hours of battery life, so that if I fall short, I may still end up with 10 at a minimum. Considering lithium polymer or lithium ion. Will also look into other options. Might use a physical button as a sleep/wake button and enable auto sleep after a few minutes. Off to start putting the hardware together.