Adapted to the harsh working conditions of electric tricycles such as heavy-load climbing, frequent start-stop, all-day endurance, outdoor bumping and alternating high and low temperatures, the 60V 280Ah large-capacity power lithium battery adopts a complete set of standardized precision manufacturing processes. It realizes full-process controllable production and traceable quality through core procedures including cell selection and classification, module matching, laser welding, multi-layer insulation protection, integrated sealing and aging testing. Different from the simple assembly mode of ordinary small-capacity lithium batteries, this tricycle-specific large-capacity lithium battery is manufactured according to vehicle-grade power battery standards. Multiple refined process optimizations eliminate common defects of traditional tricycle batteries such as false capacity marking, virtual welding, poor cell consistency, weak shock and waterproof performance, and rapid aging and swelling. With solid craftsmanship, it perfectly meets the long-term heavy-load operation needs of freight tricycles, passenger tricycles and agricultural tricycles, delivering stable large-capacity and long-life power output.

　　Precise cell grading and matching technology is the core first process to ensure the overall consistency of the 60V 280Ah large-capacity battery pack. A large-capacity battery pack consists of multiple cells in series and parallel. Tiny differences in voltage, internal resistance and capacity of single cells directly affect the cruising range and cycle life of the entire pack. Adopting 100% new Grade A power cells without recycled or disassembled cells, our products are strictly screened by high-precision capacity sorting equipment before production. Only cells with highly consistent capacity, internal resistance and voltage are selected for assembly. This professional matching process avoids the short-board effect of integral battery packs, ensures synchronous charging and discharging of all cells, eliminates local overcharge and overdischarge, and fundamentally prevents capacity attenuation, range drop and partial overheating, realizing true and stable 280Ah large-capacity performance.

　　Adopting upgraded composite technology of automatic laser welding and bolt fastening, the battery perfectly adapts to high-current heavy-load conditions of electric tricycles. Traditional manual tin welding features weak solder joints and high internal resistance, which easily cause virtual welding, desoldering and thermal ablation under long-term high-current operation, bringing potential safety hazards. Equipped with industrial fully automatic laser welding technology, the battery achieves uniform welding depth, full and firm solder joints, extremely low contact internal resistance and excellent conductivity, stably resisting instantaneous high-current impact during heavy-load startup and climbing. Meanwhile, key conductive connections adopt bolt and nut double fastening structure, thoroughly avoiding loose connection and poor contact caused by long-term bumping and vibration. This process effectively eliminates heating, sparking and circuit breaking faults of traditional welding structures, greatly improving high-current discharge stability and operational safety.

　　Multi-layer three-dimensional insulation and shockproof packaging technology enhances adaptability to complex road conditions. Electric tricycles work with continuous vibration and impact. Ordinary batteries with single-layer simple insulation are prone to insulation damage and internal short circuits due to long-term vibration. Our products adopt refined multi-layer insulation technology: high-strength insulating partitions are installed between cells, high-temperature resistant insulating adhesive tapes fully wrap the modules, and insulating buffer cushions are laid at the bottom to realize three-dimensional all-round insulation protection. The cell pre-compression fastening process fixes cell gaps stably to prevent displacement and friction damage caused by continuous bumping. The high-strength flame-retardant shell and integrated sealing structure achieve excellent dustproof and waterproof performance, adapting to rainy days, humid farmland and dusty construction sites, and effectively avoiding faults caused by water inflow and dust accumulation.

　　Modular integrated packaging and zoned heat dissipation processes solve the heat accumulation problem of large-capacity batteries. The 60V 280Ah ultra-large-capacity battery has high energy density and easily generates accumulated heat during continuous operation. Irregular stacking of traditional batteries leads to local heat concentration and excessive temperature difference, accelerating cell aging. Adopting standardized modular layout, cells are arranged neatly with reserved uniform heat dissipation air ducts and high-thermal-conductivity gaskets to quickly conduct working heat, balance the overall battery temperature and eliminate local hotspots. In addition, the BMS physical isolation installation design separates the protection board from the cells to avoid thermal interference and protection board failure caused by cell heat accumulation. This technology greatly improves the overall thermal stability and service life of the battery pack.

　　Comprehensive aging testing and strict factory quality control ensure premium finished product quality. Before delivery, all finished batteries undergo rigorous full-load charge-discharge aging tests, high and low temperature cycle tests, pressure tests and short-circuit protection tests, simulating real working conditions of tricycles including all-day heavy load, outdoor temperature variation and frequent start-stop. Unstable and defective products are screened out in advance. Every battery completes parameter calibration and balance debugging to ensure accurate factory voltage, capacity and protection parameters. With full-process refined manufacturing technology, the 60V 280Ah electric tricycle lithium battery overcomes the process shortcomings of traditional batteries. It provides long-term reliable power support for heavy-duty electric tricycles with outstanding advantages in consistency, safety, stability and service life.