"That's a great description for him because of the way he plays. He is always running and always on the go," said Benitez after one of the papers called Kuyt 'Mr Duracell'.
"But when we signed him we knew he was this type of player - he had been doing that for years.
"This year maybe he is doing so much better because the team has been doing well too. He's done really well creating things, but also scoring a lot of goals as well.
"Over my career I have had some very good players in terms of the running they do and the difference now is we have a squad with lots of those types.
"But it's always good when you have someone like Dirk, who has the mentality to realise how important that is for the team."