New EV vs Used EV — The Real Math (The Battery Decides)

A three-year-old electric car costs $21,500. The same car new costs $42,000. Everyone says the used one is the obvious win — and on the surface, the math agrees by about $16,000. Then one line on the battery report quietly changes the answer. In this video we run the full cost of ownership on two identical EVs — same model, same pack, same mileage — held for the same five years. Not the sticker price. Depreciation, interest, insurance, maintenance, and the one cost nobody puts in the ad: the pack. What we cover0:00 Two cars, one battery, $20,000 apart1:04 The two cars and the rules (warranty, state of health, the 70% floor)2:07 The math everyone runs (depreciation, and why energy cost cancels out)3:10 The costs that don't make the ad (interest, insurance, maintenance)4:10 The battery decides — the 80% line5:34 Who should still buy new6:30 The rule, in one sentence Our assumptions (stated on screen in the video) New EV: $42,000 Used, 3 years old, 30,000 miles: $21,500 5-year hold; new car resale $18,000; used car resale $11,500 Interest over 60 months: $7,800 new, $4,900 used Insurance delta: $350/year against the new car Maintenance delta: $1,000 over 5 years against the used car Replacement pack: $14,000 Warranty: 8 years / 100,000 miles, 70% capacity floor No federal or state EV credit assumed Energy cost excluded: identical for both cars, so it cannot change the comparison Change any assumption and the break-even percentage moves. The method doesn't. The rule from the videoAsk for state of health in writing before you sign. 80% or better, with at least three years of warranty left: buy used. Anything less: buy new, or walk away. DisclaimerThis content is educational only and is not financial, tax, or investment advice. Figures are illustrative and based on the assumptions listed above. Your numbers will differ. References / further reading #personalfinance #therealmath #mortgage #investing #financialliteracy #realestate #rentvsbuy #firsttimehomebuyer #behavioralfinance U.S. federal EV battery warranty minimum: 8 years or 100,000 miles, retaining at least 70% of original capacity Manufacturer battery health reports (state of health, capacity retention) Used EV transaction and depreciation data from public market listings Hashtags#usedev #evbuying #electriccar #realmath #personalfinance #carfinance #evbattery #depreciation #totalcostofownership #money #financeexplained #carmarket#usa #uae