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EV Battery Capacity Calculator

Calculate battery pack capacity, energy storage, and estimated vehicle range

Pack Voltage
-- V
Pack Capacity
-- Ah
Energy Storage
-- kWh
Estimated Range
-- km
Total Cells
-- cells

Formula

Energy (kWh) = (Cells_Series × Cell_Voltage) × (Cells_Parallel × Cell_Capacity) / 1000

Range (km) = Energy (kWh) × Efficiency (km/kWh)
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About this Calculator

This calculator helps you design and analyze electric vehicle battery packs. Input your cell configuration and specifications to calculate the total energy storage capacity and estimated driving range.

How to Use

  1. Set the number of cells in series (determines pack voltage)
  2. Set the number of cells in parallel (determines pack capacity)
  3. Enter your cell specifications (capacity in Ah, voltage in V)
  4. Adjust vehicle efficiency based on your EV type
  5. View the calculated energy storage and range

Frequently Asked Questions

What is a typical EV battery configuration?

Most modern EVs use 96-108 cells in series (for ~350-400V packs) with 2-4 cells in parallel. Tesla Model 3 Long Range uses 96s46p configuration with 2170 cells.

How does temperature affect battery capacity?

Lithium-ion batteries lose 10-20% capacity in cold weather (below 0°C) and may degrade faster in extreme heat (above 45°C). This calculator shows nominal capacity.

What efficiency should I use?

Compact EVs: 6-8 km/kWh, Mid-size sedans: 5-6 km/kWh, SUVs: 4-5 km/kWh. Highway driving reduces efficiency by 15-25%.