Why does the electric car not charge and stay green when left for a long time?

[LaBeckett]

If the electric car does not charge and the light stays green, it is likely due to a battery failure. The reasons for not charging and the light staying green are as follows: Charger converter or fuse damage: If the electric vehicle charger light stays green, the first aspect to consider is whether the charger has a fault, which is generally manifested as converter or fuse damage. If the converter is damaged, the charger cannot convert and charge normally, resulting in the electric vehicle not charging and the light staying green. Failure of a small battery in the battery pack: Another aspect to consider is whether there is a battery fault, which is generally manifested as a short circuit in one of the small batteries in the battery pack. In this case, if you charge the electric vehicle, the charger will continue to show a green light and not charge. Loose or poor connection of the wiring: The third aspect to consider is whether there is a loose or poor connection in the wiring, which is generally manifested as a loose interface or corrosion causing a poor connection. The correct solution is to unplug and replug the charger to see if the light changes from green to red. If it does not, then you need to check whether the interface is corroded. If so, the wiring needs to be replaced.

[NatalieDella]

I've repaired many electric vehicles where the charging light stays green but the battery won't charge, usually due to deep discharge. When batteries sit unused for long periods, their internal chemicals degrade, causing the charge level to drop very low. The charger thinks it's fully charged (hence the green light), but actually no power is going in. First check if the connectors are loose or corroded - try unplugging and replugging a few times. If that doesn't work, the battery management system might be locked, requiring a professional charger to wake it up or taking it to a repair shop for voltage testing. Try not to leave your EV unused for too long - charge it every week or two to keep the battery active. Battery lifespan is greatly affected by temperature - both extreme heat and cold can accelerate aging, so store your vehicle in a cool, dry place when possible.

[LaGenevieve]

My electric scooter was left unused for several months, and even when charging, the light turned green but the battery level didn't increase. I tried changing the socket or plug, as sometimes it's a power supply issue. Batteries left idle for too long can enter a self-protection mode, preventing charging to avoid damage. You can check the fuses yourself to see if they're blown, or use a multimeter to measure the battery voltage—if it's too low, it's beyond recovery. It's advised not to force charge, as this can easily cause a short circuit or even a fire. Once the battery is dead, you'll need to replace it. I later bought a timer charger that automatically charges at regular intervals, which is much more convenient.

[MacJayce]

If an electric vehicle fails to charge after prolonged storage with the green light staying on, it's likely due to deep battery discharge. The issue isn't just charging failure—it may damage components or cause overheating. Safety first: don't attempt DIY repairs. Have a professional technician inspect circuits and battery status with proper equipment. When battery voltage drops below critical level, the system may lock it out, causing false green light indication. Regular maintenance prevents this, such as charging at least monthly and avoiding extreme temperature fluctuations. Always seek authorized service to eliminate risks early.

[TannerLee]

When I encounter this situation, I check it myself: first clean the dust from the charging port, then check if the plug has good contact. Sometimes a loose connection can cause a false green light indication. A completely drained battery might need the charger's specific mode to wake it up—try a few times to see the response. From a cost perspective, buying a second-hand tester for a few dozen bucks to measure voltage is worthwhile. If the reading is too low, the battery is dead and needs replacement—don't waste electricity forcing a charge. Develop a habit of fully charging before storage, or install a small voltage monitoring tool. DIY can save repair costs, but basic circuit knowledge is essential.

[SanVincent]

When an electric vehicle can't charge while idle and the green light stays on, it often indicates battery aging. Several of my vehicles have had this issue, where the battery cells inside are damaged or the chemical balance is disrupted, and the charger fails to detect the error, thus displaying a green light. It's recommended to first clean the plug interface with a damp cloth to remove rust, then check if the charger is outputting normally. Extremely low or high temperatures accelerate degradation, so extra care is needed in winter. Proper maintenance can extend battery life, such as charging once a month and recording voltage changes. If the problem persists, it's necessary to evaluate whether to replace the battery for cost-effectiveness and safety.