The latency of Airpods is barely noticable because Apple devices are really good at syncing video to the audio latency, so it seems like there is no latency.

I tried using a rythm composer app with the original Airpods a few years ago, and that was unusable, because the delay between tapping screen and hearing the instrument was too high. Not sure if it was just the app or if latency got better in the mean time.

On the charging front, I have a charger on my bedside locker that I can plop my phone and AirPods on, and they’re always charged. Job done. I’ve never thought about the battery life of my AirPods in the time I’ve had them, including multiple transatlantic flights and weekend trips where I’m away from my normal setup.