I never pay attention to the absolute time, but when they need a charge they make a sound to indicate it and then you can easily put one in the case/charger and then put it back in your ear when it’s charged and then charge the other one, all without pausing your call. This duty cycling means you are effectively limited by the case battery size not the bud battery size.

I agree with the others upthread that I’m not going back to wires after getting my AirPods.

If you're on a call (and I do some marathon calls), I get a small ding in my ear and pop out one airpod, charge it, in 10-15m put it back in and charge the other one and with ~30m of completely uninterrupted conversation (swapping airpods does not cause drops) I'm good for another 2 hours.

For music, I get ~4 hours easily.

Mine last about 4 hours, and are up and running again for at about another 2 hours in as little as 15 minutes.

Apple's quoted battery life and charging times seem accurate to me.

Amazing how factual statements in response to questions about same are getting downvoted. C'mon people.