Battery Basics
How EV batteries store and release energy.
You'll learn
- Understand battery basics
- Recognize the key vocabulary
- Apply the concept to real vehicles
Anatomy of a pack
An EV battery pack is a matrix of small cells wired into modules, then combined into a pack managed by a Battery Management System (BMS).
Battery pack layout
Formula
Energy (kWh) = Voltage (V) × Capacity (Ah) ÷ 1000
Multiply pack voltage by charge capacity to get usable energy.
Example: 400 V × 200 Ah ÷ 1000 = 80 kWh
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