วิธีการคำนวณ EV Resale Value Estimator
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The EV Resale Value Estimator projects the future resale value of an electric vehicle based on brand-specific depreciation curves, battery health, mileage, and market trends.
สูตร
Resale Value = Purchase Price x (1 - Cumulative Depreciation Rate for Year N)
- P0
- Original Purchase Price ($) — Price paid for the vehicle when new
- D(n)
- Cumulative Depreciation (%) — Total percentage of value lost by year n
- BH
- Battery Health (%) — Remaining battery capacity as percentage of original
- M
- Mileage (miles) — Total odometer reading used for mileage adjustment
คำแนะนำทีละขั้นตอน
- 1Enter original purchase price and the vehicle year and model
- 2Input current mileage and battery health percentage if known
- 3The calculator applies brand-specific depreciation curves (Tesla, Rivian, etc. hold value differently)
- 4View estimated resale value at 1, 3, 5, and 7-year milestones
ตัวอย่างที่มีคำตอบ
อินพุต
Tesla Model 3, $45,000, 3 years old, 36,000 miles
ผลลัพธ์
Estimated resale: $28,800 (36% depreciation) — Teslas retain value better than average EV
อินพุต
Nissan Leaf, $32,000, 5 years old, 50,000 miles
ผลลัพธ์
Estimated resale: $10,880 (66% depreciation) — Leaf depreciates faster due to air-cooled battery
ข้อผิดพลาดที่ควรหลีกเลี่ยง
- ✕Assuming all EVs depreciate at the same rate — Tesla and Toyota hold value much better than Nissan and Chevrolet EVs
- ✕Not factoring in battery health as the single biggest resale value driver for used EVs
- ✕Ignoring that new EV price cuts (common from Tesla) instantly reduce used EV values
คำถามที่พบบ่อย
Do electric cars hold their value?
It varies widely by brand. Teslas retain about 65% of value after 3 years, while some other EVs retain only 40-50%. Overall, EVs are approaching gas car retention rates as the market matures.
What kills EV resale value the most?
Battery degradation is the #1 factor. A used EV with 95% battery health commands a significant premium over one with 80%. New model price cuts also instantly reduce used values.
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