the battery and capacitor combination for power backup, Electrical Engineering

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Why do wenot see the battery and capacitor combination for power backup?

Ans) There are "super capacitors" that are used for power backup - they are well-organized for short-term power take-over, but they are leaky and are not good for long term. Batteries tend to expire slowly, more slowly than the leakage on a power backup capacitor, so the capacitor does not do any good. 

 

 


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