I, along with a number of individuals on these forums, was curious as to how my battery life performed throughout the day. I wanted to see how my usage affected battery life and what I could do to maximize it. Unfortunately, there was no effective way of viewing this data....UNLESS you tracked it yourself. So, I decided to do just that. Over the past few weeks I've worked on and built an Excel spreadsheet to keep track of my battery life, having certain areas automatically calculate information based on user input, etc... However, I didn't feel content keeping it to myself, so I thought I would share it with the masses! So, for your OCD tracking of battery life (and your pleasure) here is the spreadsheet I created! A few notes though: This was created in Excel 2007 on Windows XP. I have confirmed it works in Excel 2007 on XP and Vista. I offer NO guarantee that it will work on a Mac with Office 2007 or higher. I use functions ONLY AVAILABLE IN OFFICE 2007. This WILL NOT WORK IN OFFICE '97 - 2003 (as I originally designed it). This is NOT official and is ONLY meant as a tool to educate yourself on your battery life (results may vary). With that in mind, if you still want to give it a shot, go for it. If you have questions, suggestions, ways to improve it...please let me know! PM me or shoot me an email at hollar [at] me [dot] com. Enjoy! ~Angle P.S. There are certain fields that will automatically populate, as well as four (4x) sheets in the entire workbook. Be careful what you type in and be sure to explore the entire document.