Surface Pro 2 Battery Report after 3 Months

2-09-14

I purchased my Surface Pro 2 in the middle of November 2013. Since then, I've used it as my daily driver, replacing my desktop. In addition, I had the December firmware bug, which prevented the device from sleeping correctly, and caused it to overheat and drain to 0% a couple of times. I tried to get it swapped out because of this, but the MS store rep refused, saying the device was fine. I'll keep tabs on this and see if he was right or not.

After 3 months, my battery report looks like this. You can grab this by running powercfg /batteryreport from a command prompt. PowerShell doesn't seem to work, for whatever reason.

The system reports I've used 70 cycles, and my full charge capacity is 2,000 mWh lower than the design capacity. I've heard LiOn batteries wear the most in the beginning, but a month ago at the MS store, the full charge capacity was listed as higher than the design, something the rep pointed out to me as a sign that the device was fine. I'll take it as a sign that the firmware was junked.

I honestly do not know enough about batteries to know if this is good or bad, but the battery life does not feel like it's decreased significantly, so I'll take it as it is for now, and keep tabs on it every month.

Full battery report below.