Self-driving car and lead–acid battery: what they have in common

1. Step 1. Self-driving car — evolved from — Electric car. Most self-driving cars are built on electric platforms.
2. Step 2. Electric car — has part — Inverter. An inverter powers the traction motor.
3. Step 3. Inverter — is part of — Uninterruptible power supply. An inverter.
4. Step 4. Uninterruptible power supply — has part — Lead–acid battery. A battery.

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