I have just become the proud owner of an Ipad4, and am curious to know the average recharge time for the Ipad. Having let it fully deplete, it took approx. 9 hours to charge to 100%. Charging from e.g 20 to 100% can take 5 to 6 hours or thereabouts. I usually place it on recharge, when it gets down to 15 to 20 %.
Although, it takes quite some time to charge up, it does hold its charge for for a few days. I would be interested in comments or advise.