Battery Capacity
~100 kWh
Cell Type
2170 cylindrical cells (newer) / 18650 cells (older)
Chemistry
NCA
Warranty
8 years / 150,000 mi
Expected Degradation Rates
Like all lithium-ion batteries, your Model S's battery will experience some capacity loss over time. Here's what to expect:
Tesla batteries typically lose 3-5% capacity in the first year as they settle in. This initial break-in period is normal and expected for lithium-ion batteries.
After the initial break-in period, degradation slows significantly. Most owners see only about 1% loss per 10,000 miles with normal use.
Tesla's 2023 Impact Report shows Model 3/Y retain about 85% capacity at 200,000 miles. Real-world data from high-mileage Teslas consistently confirms excellent long-term retention.
Battery Chemistry: NCA (Nickel Cobalt Aluminum)
Model S uses high-energy-density NCA cells optimized for maximum range. These cells perform best when charged to 80-90% for daily use.
NCA Charging Tip
For daily driving, set your charge limit to 80-90%. Only charge to 100% when you need the extra range for a longer trip. This helps maximize long-term battery health.
Battery Warranty Coverage
Tesla's Model S battery is covered by a comprehensive warranty:
The warranty covers whichever comes first: 8 years or 150,000 miles. Tesla guarantees the battery will retain at least 70% of its original capacity during this period. If your battery degrades below 70%, Tesla will repair or replace it at no cost.
Additional Notes
As Tesla's flagship sedan, Model S has extensive real-world data showing excellent long-term battery retention. Many early Model S vehicles have exceeded 200,000 miles with over 80% capacity remaining.
Monitor Your Model S's Battery Health
TeslaBat gives you accurate battery capacity estimates and tracks degradation over time. See exactly how your battery is performing compared to when it was new.
- Accurate capacity estimation using Tesla's official API
- Track degradation trends over time
- Compare with other Model S owners
- Get charging insights to maximize battery life
