What do you mean by "advanced batteries"? Battery cells are a commodity. Lithium iron phosphate cells last through 8 times more cycles. Battery management bo

What do you mean by "advanced batteries"? Battery cells are a commodity. Lithium iron phosphate cells last through 8 times more cycles. Battery management boards can be bought off of amazon, aliexpress etc. You can find plenty of youtube videos of people spot welding 18650 cells together with nickel strips and wiring a BMS to make their own battery pack, then putting it in their own scooter, electric bike etc. You can even buy full battery packs from actual electric cars and hybrids off the internet. This is not something that is difficult for a single person, let alone a company.