E-Bike and Scooters likely have more high density batteries then anything else other then the car. The cars have to go threw far, far more testing and the cost

E-Bike and Scooters likely have more high density batteries then anything else other then the car. The cars have to go threw far, far more testing and the cost of getting it wrong is many, many billions. Most car companies make their own batteries and take it seriously. These E-Bikes and scooters come from China manufactures where the battery come from like 5 levels deep of suppliers.