Possibly, between the habitation areas and the possibility of several under-fueled Autobots arriving, having another energy source would be beneficial.

[Optimus carefully moves along a few steps and navigates a downward passage - offering a hand to help Ken along. Moving with them is Bumblebee, who was small enough to navigate the passage. Cliffjumper was also the right size for such an excursion but declined due to the lack of excitement such a trip would bring.]

So far the energy levels are not dangerous to human life but if it looks like it may cause any harm Bumblebee will return you back to the surface. We cannot be sure if it may get through your suit.

I would rather not have to lose a friend here Ken.