My power tool battery chargers won't start charging when the battery is hot. A few minutes ago I just let the whole thing cool down for an hour or two before putting it on the charger because I didn't need it until tomorrow.
Perhaps one should also consider charging speed. If one doesn't need the battery to be charged for 10 hours, then there is no reason to charge in an hour or two. Just start it up overnight and let it trickle charge.