Originally Posted by
_Axon_
Thanks!

So what happens if I half charge a battery and then stop, without starting again?
Stopping the charge or half charging won't hurt anything.
You just never want to over discharge the battery by running it too low. That's why ESC's have lipo cutoff to protect the battery from dropping too low.
Personally, I would always try to balance charge the pack to full each time. But if you happen to pull it off early, don't worry, it won't hurt anything.