those full addressable strings use a LOT Of power. The ones I've seen, each R/G/B LED triplet is 3 watts when its full on white, and there's like 60 LED triplets per meter, so thats like 180 watts per meter.... my kid's truck in that video, he's got banks and banks of 50A 5V power supplies, and all the data multiplexors for them. its all run from an iPad over wifi. the truck has a 5KVA diesel inverter generator
onboard to power the sound and lights
. not exactly something you'd want to run from a 12VDC battery
he's also experienced a lot of technical issues. he goes to the desert with that rig and the dust storms generate so much static, they fry strings regularly.