is my battery defective?

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http://forums.androidcentral.com – Hi everyone, I'm new to these forums but looks like a great site. I've just purchased the nexus 10 and am wondering if I have a bad battery or if I'm just paranoid and looking too closely. I unplugged my tab at 630am and turn on GPS for about ten minutes and turn WiFi on. In about 20 minutes it I'd down to 95%. No live wallpaper, only had GPS on momentarily. I feel like it drains way to fast? Have major battery problems with my android phone and feel like it would be just my luck. Have a few apps installed like donors and some games. Disabled ntc, don't have Facebook either. Below is a scre (HowTos)