Batshuayi was the first new arrival of the Antonio Conte era when he signed a five-year deal at Stamford Bridge after the Blues agreed a mammoth £33.2 million fee with Marseille.
Courtois knows the 22-year-old forward well from their time together with the Belgium national team and believes he has all the right attributes to be a success in England, but thinks it may take time for him to adjust to the change in pace between Ligue 1 and the Premier League.
"Michy is a very strong striker, fast, good technique, he can hold a ball and score a goal very easily with either foot," Courtois told the club's official website.
"He is good in the air as well. I won't say it is his strongest point but he can handle himself and being strong as well is important for that. I hope he can prove himself here as well.
"He will need to adapt a bit to the speed of the Premier League because I think it is faster than the French League, but I think he will adapt fast. He is working hard so hopefully he will have a good season together with us."
Batshuayi scored 17 goals in 32 Ligue 1 starts last season, while also providing nine assists.