Batteries {Ways to Save}

This week's theme is "Ways to Save". I'm still trying to think of things to photograph for the remaining 6 days for this theme. I did however come up with this for today. These days most things take batteries of some sort. And to reduce the whole in the bank a bit I buy rechargeable batteries. I use them for my computer mouse, and my camera flash to name a couple things off the top of my head.

ISO 100
SS 1/250
Fstop 4
Canon 85mm 1.8
Canon 580EXII Flash