You may well have to wait until it runs out of power and then only charge it for a short while before testing it again. That way, should it happen again, you won't have to wait as long to get it to run out again.
You may well have to wait until it runs out of power and then only charge it for a short while before testing it again. That way, should it happen again, you won't have to wait as long to get it to run out again.