Apple has a new 12W charger shipping with the iPad 4, and it is available online and compatible with a number of other iOS devices. Apple already told us the 12W adapter would indeed charge your iPad faster than the old 10W adapters, but it couldn’t give us an estimate on how much faster. Insanely Great Mac posted the video above today that shows the iPad drawing more power from the new adapter and claimed it was able to shave about 30 minutes to 45 minutes off the charge time. While this charger will work with your iPhones and iPods, we see those devices will only continue to draw 5 watts.