Short answer: Arsenal's battery will last approximately four to five hours with typical use.
Long answer: Arsenal’s battery life completely depends on environmental conditions, how you use it, and on which camera.
If you’re doing a lot of photo stacking the battery will drain faster.
If you will be shooting for more than four hours at a time, please plan on charging it in the field. To make that easier, Arsenal can be charged while in use through a USB-compatible battery pack (not included).