My iPad which I bought direct from Apple Store UK arrived with around 93% charge if I'm remembering right. Almost fully charged. I was surprised, and quite happy, as I could start 'playing' with it right away. Nice as most devices arrive mostly discharged and take hours to charge up before you can use them and I'll admit to being a tad impatient especially if it's something I've wanted for a long time and been looking forward to getting.
As for battery life I get great battery life esp. in comparison to other mobile devices I own. I tend to charge it at night giving it plenty of time to charge up. Which also seems pretty quick, was expecting it to take ages given reviews on line but as I didn't own a previous generation maybe it is a lot slower to recharge, and I have yet to run out of battery life while using it even on days I've been using it for hours that day.