Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_2_8 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8E401 Safari/6533.18.5)
Charge to around 50% and then power it down (hold power button and slide to power off). You won't have any problems.
Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_2_8 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8E401 Safari/6533.18.5)
Charge to around 50% and then power it down (hold power button and slide to power off). You won't have any problems.
You can just turn it off. The charge to 50% wouldn't make any difference. By turn it off I mean hold power button. Don't put it to sleep. Keep it in ideal temperature conditions (as in, do not put it in attic if you live in east coast or something as your iPad will become a nice digital frying pan).