Under normal conditions, it takes about 15 days to customize lithium ion batteries; On the first day of the early stage, after receiving the order demand, the R&D personnel evaluate the order demand, quote the samples and establish a customized product project. . Manufacturing custom lithium-ion battery packs requires precise engineering, quality control, and safety standards. Here's how to engineer the. . Battery Selection: Choose deep-cycle batteries, such as lead-acid or lithium-ion, and ensure they are securely placed in a waterproof battery box for durability. Wiring and Components: Properly connect electrical components, including the solar charge controller and fuse, to manage energy flow and. . Manufacturers like EK SOLAR use automotive-grade LiFePO4 (lithium iron phosphate) cells for their 10-year lifespan and thermal stability. Module Assembly Think of it like building with LEGO blocks – but for industrial energy. To clarify its structure, let's examine its four essential components. The choice of cell chemistry—such as LiFePO4 for safety and long life, or LiPo for high. .