How Many Years Can a New Energy Vehicle Battery Last?

2 Answers
ClaytonMarie
08/29/25 6:49am
New energy vehicle batteries can last three to five years. New energy vehicles refer to automobiles that utilize unconventional vehicle fuels as power sources, integrating advanced technologies in vehicle power control and driving systems to form vehicles with advanced technical principles, new technologies, and novel structures. Reasons for the low range of new energy vehicles: 1. Increased viscosity of the electrolyte in low-temperature environments, leading to a decrease in the conductivity of lithium-ion batteries; 2. Poor compatibility between the electrolyte and the negative electrode and separator in low-temperature environments; 3. Severe lithium precipitation on the negative electrode of lithium-ion batteries in low-temperature environments; 4. Reduced diffusion system within the active material of lithium-ion batteries in low-temperature environments.
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OEloise
09/11/25 4:25am
I've been driving a new energy vehicle for almost 6 years, and the battery has proven quite durable. Currently, manufacturers generally offer an 8-year or 150,000 km warranty, with some brands providing even longer coverage. Based on actual usage, the degradation is minimal in the first five years – my car's full-charge range is now less than 20 km shorter than when new. The key lies in usage habits: avoid regularly draining the battery completely or charging to 100%, maintaining between 30%-80% is optimal for battery health. Parking in underground garages during summer prevents exposure to extreme heat. In winter when temperatures drop below 0°C, expect range to reduce by 20-30%, but this is normal behavior rather than degradation. Battery replacement can indeed be expensive, starting from 40,000-50,000 RMB, though the probability of needing replacement within 10 years is relatively low.
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