1. Volumetric Energy Density of the Lithium-ion Battery
   ・Volumetric energy density (Wh/L)

2. Product Safety Standards for the Aircraft and Battery
   ・IEC (International Electrotechnical Commission) standards and relevant certification numbers
   ・UL / EN standards and certification numbers
   ・JIS standards and certification numbers

3. Product Labeling under Product Liability Regulations
   ・Whether the aircraft has the necessary labeling or markings required under applicable Product Liability (PL) regulations.

Any information that can be provided by ModalAI's engineering team would be greatly appreciated.