Abstract: The present invention aims to solve the inconvenience in carrying assembled lithium-ion battery packs with large capacity to embark of the aviation apparatus. An assembled lithium-ion battery pack with large capacity comprises at least two boxes which can be connected as a single unit or disassembled as multiple boxes; each said box including multiple lithium-ion batteries connected in series or parallel, its total lithium equivalent is smaller than transportation safety bar; the multiple boxes being connected in series of parallel; one of said multiple boxes including an identification chip and alarm device controlled by said identification chip; other multiple boxes including an identity mark chip; said identification chip storing the identity mark of said identity mark chip.