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    EV Battery10 Common Questions

    Complete guide to EV batteries in India — lithium-ion chemistry, lifespan, degradation, warranty, replacement cost, and health tips.

    1How long does an EV battery last?

    Modern lithium-ion EV batteries typically last 10-15 years or 200,000-300,000 km with retention of 70-80% of original capacity. Most manufacturers offer an 8-year or 160,000 km battery warranty.

    2What is battery degradation?

    Gradual loss of capacity over time. Typical EVs lose 1-3% per year of use, meaning after 10 years a battery might hold 75-85% of its original capacity. Degradation rate depends on charging habits and climate.

    3How much does EV battery replacement cost?

    ₹3-10 lakh depending on battery size. For a 40 kWh battery, expect ₹4-6 lakh. However, most EVs never need replacement during a typical ownership cycle thanks to 8-year warranties and long lifespans.

    4What is the warranty on EV batteries in India?

    Standard warranty is 8 years or 160,000 km (whichever comes first). Covers significant capacity loss (usually below 70% of original). Tata, Mahindra, MG, Hyundai all offer this.

    5How can I extend my EV battery life?

    Avoid frequent 100% charges (charge to 80% for daily use), minimize DC fast charging (use AC home charging primarily), avoid deep discharges below 10%, park in shade in hot weather.

    6What happens if my battery fails under warranty?

    The manufacturer replaces or repairs the battery free of cost. The new battery typically comes with the remaining warranty of the original battery (not a fresh 8 years).

    7Can I charge to 100% every day?

    Not recommended for daily use. Keep daily charging to 80% to maximize lifespan. Charge to 100% only before long trips. Most EVs let you set a charge limit in the app/dashboard.

    8What is LFP vs NMC battery?

    LFP (lithium iron phosphate) — safer, longer-lasting, cheaper, lower energy density. NMC (nickel manganese cobalt) — higher energy density, longer range, more expensive, requires more care. LFP is now popular in budget EVs like Tata Punch EV.

    9Does cold weather affect EV battery?

    Yes — range can drop 20-30% in cold weather below 5°C. The battery works harder to maintain temperature, and cabin heating uses energy. Preheat while plugged in.

    10Can I recycle my old EV battery?

    Yes. Several recyclers in India (Attero, Lohum, BatX) accept EV batteries and recover lithium, cobalt, and nickel. Your dealer can help arrange this when the battery reaches end of life.

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    EV Battery — 10 Common Questions Answered 2026 | MeraEV