For those who rely on electric vehicles for their livelihood or daily commute, the battery is the vehicle’s… “ Heart ” and “ Wallet ” The cost of a single battery replacement, often running into thousands of yuan, along with the anxiety caused by reduced range, has made battery health a critical issue. Unlike smartphone batteries, electric‑vehicle batteries endure far harsher conditions, withstand higher current surges, and face more complex everyday challenges. The unique circumstances of EV lithium batteries make them far more demanding than those in smartphones.

Electric vehicle battery packs typically consist of dozens or even hundreds of small cells connected in series and parallel, operating in complex environments: outdoor exposure—subject to prolonged sun exposure, rain, and freezing temperatures; high‑current operation—requiring instantaneous high‑current discharges during start-up, uphill driving, and when carrying heavy loads; frequent vibrations—resulting from the physical shocks of traveling on rough roads; and limited charging conditions—most often charging at public charging stations or outdoors at home, where the environment is unpredictable. The lithium batteries used in electric vehicles… “ Six Major Killers ” And the Way of Protection

Killer One: [Charging Habits] —— Full Charge and Overcharge

Question: To maximize single‑charge endurance, many people habitually charge their devices overnight, waiting until the charger’s indicator turns green. This can cause the battery pack to remain in a state of… 100% Under high‑voltage stress, individual cells may experience overcharging due to slight variations, accelerating overall aging. Countermeasure: Control the charging duration by estimating the charging time based on the charger’s power and the battery’s capacity (e.g., …). 60V20Ah Using a standard charger, the battery takes approximately 8 hours), and avoid prolonged charging. Make good use of timers: use outlets with built-in timers, or opt for smart chargers that automatically cut off power. There’s no need to fully charge every time: for everyday commuting, if you don’t use up the battery, you can charge it to 90% Pull the plug immediately. Assassin Two: [Extreme Temperature Change] —— The trials of winter and summer

Question: Charging immediately after prolonged exposure to summer sunlight: the battery temperature may reach as high as 50℃ Above, at this point, charging is like… “ To add fuel to the fire ” , which can easily trigger thermal runaway and swelling. Low-temperature charging in winter: when the ambient temperature falls below 0℃ At this time, lithium-ion activity is low; direct charging can lead to lithium plating, permanently reducing capacity and posing safety risks. Countermeasures: In summer, charge the battery in a shaded area whenever possible, and allow the vehicle to rest after driving. 30 For more than a few minutes, allow the battery to cool before charging. In winter, try to charge indoors or in a relatively warm environment. Before charging, you can take a short ride for a few minutes to slightly raise the battery temperature. Killer Tip #3: [Depth of Discharge] —— Hauling heavy cargo and long-distance driving

Problem: Three-wheeled electric vehicles are often used for hauling cargo. Under heavy loads, the battery discharges at high current, causing a rapid voltage drop that can easily trigger undervoltage protection. “ Discharge ” ). Prolonged deep discharging severely damages the battery. Countermeasure: Avoid “ Emptying the sky ” : Battery level below 30% At that point, stop operating under heavy load and recharge promptly. Load matching: Familiarize yourself with the vehicle’s rated payload to avoid prolonged overloading. Never operate until… “ Stroller ” : After the controller triggers undervoltage protection, do not forcibly restart or continue using it. Killer #4: [Improper use of the charger] —— An invisible one “ Bomb ”

Problem: Using low-quality, mismatched, or fast-charging chargers. Low-quality chargers deliver unstable output voltage and lack overcharge protection. Using… 60V Charging charger 48V Batteries can overcharge; conversely, undercharging can damage them. Non‑standard high‑power fast charging may shorten charging time, but at the cost of elevated temperature and voltage. Countermeasures: Use a dedicated charger—always opt for the original or a certified charger with voltage and current specifications that exactly match your device. Protect the charging port: keep it free from water and dust to prevent short circuits. Killer No. 5: [Erosion from Water and Vibration]

Issue: Electric vehicles inevitably encounter water and rough roads. Poor sealing of the battery compartment can allow water ingress, leading to short circuits; severe vibrations may loosen or damage the connections between battery cells. Countermeasures: Inspect seals—regularly check that the battery compartment’s sealing strips have not deteriorated. Avoid deep water—do not drive through puddles deeper than half the wheel hub. Slow down over bumps—when encountering potholes or speed bumps, proceed at a reduced speed to minimize impact. Secure the battery—ensure it is firmly in place within the compartment, with no looseness or movement. Killer No. 6: [Prolonged Idling]

Issue: During winter or when the battery is left unused for an extended period, both low‑charge and fully charged states can cause irreversible damage. Solution: Full‑charge maintenance: For long-term storage (exceeding… 1 months ago, first fully charge the battery. Perform periodic top-ups: every 1-2 Recharge the battery once every month to prevent self-discharge from causing a low‑battery condition. Storage conditions: Keep in a cool, dry place, away from moisture and extreme temperatures. For two‑wheel models. / of three-wheeled electric vehicle users “ Three dos and three don’ts ” Mnemonic

[Three Essentials] Must “ Cool down, then recharge. ” : Especially in summer, wait half an hour after parking before charging. You should… “ Use the original charger. ” : and ensure that the charging environment is well-ventilated and dry. It is necessary to “ Charge frequently and discharge lightly. ” : Battery level drops to 30%-50% It can be recharged, so avoid letting it run completely out of power. [Three Don’ts] Do not… “ Charge immediately after exposure to high temperatures or freezing cold. ” . Do not “ Charge immediately after use, or use immediately after charging. ” (Give the battery time to rest and stabilize.) Do not “ Overloading while driving ” , this will force the battery “ Overwork ” Work. Special reminder: Users of three-wheeled electric vehicles

For three-wheeled cargo vehicles, heavy loads and frequent use lead to faster battery degradation. In addition to the above recommendations, please pay special attention to the following: Regular inspections: Check the battery’s exterior monthly for bulging and ensure all connections are secure. Reserve capacity: When carrying a load, leave extra charge margin compared to when the vehicle is empty to avoid running out of power mid‑trip. Consider the battery type: If usage is extremely frequent, consult a professional and consider switching to lithium‑iron‑phosphate (LFP) batteries, which offer better cycle life—though with slightly lower energy density—while providing longer service life and enhanced safety.