Why does the charging station experience "jumping gun"?

Why does the charging station experience "jumping gun"?

Watching as the battery is about to be fully charged

The instrument is frozen at "98%"
Or suddenly display 'charging interrupted' when halfway charged

Even encountering the problem of 'gun lock'

New energy vehicle owners may have experienced these scenarios. As an important tool for modern travel, a stable energy replenishment experience is the core demand of electric vehicles. Today, Anan will unveil the mysterious veil of abnormal charging for you.

1、 SOC protection machine that prioritizes safety
SOC (State of Charge) refers to the state of charge of a battery, which reflects the ratio of remaining charge to full capacity. When leaving the factory, the battery usually retains about 50% of its capacity, which is not a technical defect, but based on multiple safety considerations:
Transportation and storage safety: A fully charged state can exacerbate chemical activity, which may lead to self discharge or thermal runaway risks
• Battery life protection: Long term full charge will accelerate electrolyte decomposition, leading to capacity degradation
Intelligent BMS protection: Real time monitoring by the onboard battery management system, actively terminating charging at critical values to avoid short circuit risks caused by overcharging
This explains why it is still difficult to reach a fully charged state even when setting a 100% upper limit - it is precisely the intelligent protection mechanism jointly guarded by Laichong charging piles and vehicle BMS.
2、 Scientific Electricity Supplement Index
For users who pursue full charge, it is recommended to adopt a "fast slow combination" charging strategy:
Fast charging to SOC protection threshold (usually 98%)
Switch to slow charging for trickle charging
Daily maintenance of 20-80% shallow charging and discharging is more beneficial for battery health
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