Optimal Charging for Ternary Lithium Batteries: 20% vs. 50% for Extended Life
Dongchedi recently addressed a key concern for electric vehicle owners: the ideal battery state-of-charge for initiating charging to prolong the life of ternary lithium batteries. The discussion focuses on whether to charge when the battery is at 20% or 50% capacity to ensure optimal battery health.
Dongchedi, a prominent Chinese automotive media platform, recently explored a critical question for electric vehicle (EV) owners regarding battery longevity. The article specifically investigates the optimal battery state-of-charge (SOC) for initiating charging to maximize the lifespan of ternary lithium batteries (Dongchedi). This common dilemma for EV users centers on whether charging should commence when the ternary lithium battery reaches 20% or 50% capacity, a decision that significantly impacts the long-term health of the EV's power source.
Maintaining the health of an EV's ternary lithium battery is crucial for ensuring consistent performance and range over the vehicle's operational life. Proper charging habits are widely recognized as a key factor in mitigating battery degradation, which can manifest as reduced capacity and slower charging speeds over time. The discussion by Dongchedi highlights the importance of understanding battery chemistry and behavior to adopt charging practices that support the longevity of the high-voltage battery system in modern electric vehicles.
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Written by EVPlus Editorial Team · 26 June 2026