Battery extensions don't work on the truck, and charging the truck takes a very long time. On Sol 50, I left it charging with 5% of remaining energy, and by Sol 53, it only reached 22% of energy. By Sol 62, it reached 82%. It's my only vehicle, and I can only farm and mine, but there are no nearby rocks left, and there are no abandoned bases nearby. The only option left is to keep farming until I can't do anything without vehicles. Phew, I hope a patch comes soon so I can continue making progress.