Lithium Battery for Electric Tricycle serves as the core power component of electric tricycles and is widely applied in urban and rural freight, daily transportation, environmental sanitation operation, short-distance transportation and other scenarios. Compared with traditional lead-acid batteries, electric tricycle lithium batteries have the advantages of high energy density, light weight, long cruising range and excellent charge-discharge performance, which adapt to the working characteristics of electric tricycles such as frequent start-stop, load-carrying driving and long-time operation. However, most problems such as battery attenuation, bulging, reduced cruising range and premature scrapping in practical use are not caused by product quality defects, but by irregular charging methods and extensive operation and maintenance habits. Electric tricycles are mostly high-frequency operating equipment with high battery charging frequency and heavy working load. Only by establishing a standardized charging operation and maintenance system can we effectively eliminate potential safety hazards, stabilize battery performance, greatly extend battery service life and reduce long-term equipment operation costs.

　　Standardizing charging operations is the core foundation of Lithium Battery for Electric Tricycle operation and maintenance, as well as the key to preventing early battery loss. First of all, users must adhere to the principle of dedicated charger for dedicated battery, strictly use original supporting special chargers, and avoid random use of lead-acid battery chargers, high-power fast charging equipment or non-brand universal chargers. Chargers of different specifications have different output voltage and current parameters. Non-standard charging equipment will cause uneven cell charging, overvoltage charging and current overload. Long-term use will directly damage the cell structure, leading to a sharp rise in battery internal resistance and capacity attenuation. Meanwhile, charging operations must be carried out with strict control of environmental conditions. Electric tricycles are often parked outdoors, on construction sites and village roads. Charging is strictly prohibited in environments with high-temperature exposure, rain and humidity, frost and low temperature, or closed narrow spaces. Charging in high temperature is prone to battery thermal runaway, humid environments easily cause interface short circuits, and low-temperature charging leads to lithium precipitation in cells, causing permanent capacity damage and greatly shortening battery service life.

　　Scientifically controlling charging timing and power range is an important detail to delay the aging of Lithium Battery for Electric Tricycle. In view of the high-load operation characteristics of tricycles, the wrong habit of exhausting power before recharging should be abandoned. Deep power deficit will keep cells in a long-term low-pressure overload state, accelerate cell aging, and easily cause battery dormancy, charging failure and sudden cruising range drop. In daily use, it is recommended to recharge in a timely manner when the remaining battery power is 25%-35%, and follow the operation and maintenance principle of shallow charging and shallow discharging. This can not only ensure sufficient cruising range for daily operations, but also protect cell activity to the greatest extent. For freight and environmental sanitation tricycles operating daily, standardized recharging can be carried out after daily work to avoid long-term storage with insufficient power. For infrequently used vehicles, long-term storage with full power or no power is prohibited. The battery power should be maintained at a healthy level of 50%-60%, and power calibration should be completed monthly to prevent performance loss caused by battery self-discharge.

　　Regular supporting charging operation and maintenance and appearance inspection are key links to eliminate hidden dangers in a timely manner and ensure charging safety. Before each charging, basic inspection shall be conducted on Lithium Battery for Electric Tricycle to check whether the battery shell has abnormalities such as damage, bulging, deformation and liquid leakage, and whether charging ports and wiring terminals are loose, oxidized, dusty and damp. The complex operating environment of tricycles leads to dust accumulation, water stains and bump vibration, which easily cause poor interface contact, resulting in abnormal heating during charging, insufficient charging and sudden power cut. It is necessary to clean interface impurities and fasten loose lines in a timely manner to avoid charging with faults. At the same time, the battery status should be monitored during the whole charging process. If there are abnormal conditions such as excessive battery heating, peculiar smell and abnormal flashing of charging indicators, power supply shall be cut off immediately to stop charging. Faults must be eliminated before reuse, and long-term overcharging without supervision is strictly prohibited. The power supply should be cut off in time after the battery is fully charged to avoid continuous floating charging, which will damage the cell balance, cause battery performance attenuation and even induce safety accidents.

　　Seasonal differentiated charging operation and maintenance is a core measure to adapt to environmental changes and stabilize battery performance. The charge and discharge activity of Lithium Battery for Electric Tricycle is greatly affected by temperature, and targeted operation and maintenance methods need to be adopted in different seasons. In high-temperature summer periods, the battery temperature will be extremely high after long-term outdoor driving and exposure. Do not charge the battery immediately. Park the vehicle in a cool and ventilated place and wait for the battery to cool down to room temperature before charging to avoid thermal runaway risks caused by high-temperature charging. In low-temperature winter environments, cell activity decreases significantly, resulting in slow charging speed and natural cruising range attenuation. Charging should be carried out indoors at room temperature as much as possible, and direct outdoor charging at sub-zero temperatures should be avoided. Meanwhile, ensure full charging in winter to prevent virtual power and power deficit, effectively avoid cell damage caused by lithium precipitation, and guarantee the battery operation stability in winter. In humid seasons such as rainy seasons and returning humidity periods, waterproof and moisture-proof measures should be taken for battery interfaces to prevent rainwater from penetrating into charging ports and causing short circuit faults.

　　Accurate disposal of charging faults and daily operation and maintenance taboos are important guarantees to extend the service life of Lithium Battery for Electric Tricycle. Common charging faults in daily use, such as charging failure, slow charging, full power virtual display and sudden cruising range drop, are mostly caused by improper charging and operation and maintenance. When charging abnormalities occur, first check the faults of chargers, charging lines and interfaces. After eliminating peripheral equipment faults, detect whether the battery BMS protection system triggers protection mechanisms such as overcharge, over temperature and low voltage, and restore the normal battery state through professional reset and repair. At the same time, strictly abide by operation and maintenance taboos. Private battery disassembly, charging line modification and battery protection system cracking are prohibited, and high-intensity charging immediately after overload driving is forbidden to avoid all illegal operations. Long-term standardized charging operation and maintenance can increase the cycle service life of tricycle lithium batteries by more than 40% and greatly reduce replacement costs. For individual travel users, individual transporters and large-scale fleet operation managers, the standardized charging operation and maintenance process is simple and easy to implement. It can not only ensure operation safety, but also realize long-term battery reuse, which is an optimal way to improve the efficiency of electric tricycles and reduce operation and maintenance costs.