Comparisons of energy storage devices.
|Item||Super capacitor||Lead-acid battery||Lithium-ion battery||Flywheel|
|Design life||15 years||10 years||20 years||Long with maintenance|
|Autonomy||1 s||30 s ∼ 15 min||30 s ∼ 15 min||10 ∼ 15 s|
|Ambient temperature||25 °C||25 °C||40 °C||–|
|Etc.||High discharge||–||–||Very high cycle life|
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