Lithium-ion Battery provided by Forever EV includes Cells, Modules, and Packs. Li-ion cells are produced by the top quality makers in China, including but not limited to CATL, BYD, EVE, CALB, and BAKER, etc. Battery modules and packs were customized, developed, and manufactured for various projects. The structure of cells covers not only cylindrical but also prismatic. For the classic cylindrical 18650 lithium-ion battery cells, the energy density had reached 3.5Ah. Other energy densities are also available from 3350mAh, 2600mAh, 2500mAh, 2200mAh, 2000mAh, to 1800mAh.   Different chemistry and lithium metal oxides-LiFePO4, NCM, NCA, Silicon anode are used for the said battery cells.