I'm picking up an old project that's been restarted a couple times — my 4-wheel rover. A prior model was outfitted with two L298N dual drivers, regular wheels, and a plastic chassis. That version was stolen and has had those parts replaced with TB9051FTG drivers, mecanum wheels, and a metal chassis. Aluminum, probably.
The motors are powered with two LiPo 3.7V batteries with a blade fuse soldered on the positive line, with XT30s on the end. That's all so far. I need to keep ordering new pieces and parts — getting to be an expensive robot.