This comment from Youtube stuck out to me ...
Quote:
The energy in these caps is too small to make it safe for all usage scenarios.
One problem is that some cars have electronics that uses a constant energy for alarm system, radio door locks etc.
This capacitor pack holds some 10Wh energy at 12V but you can't actually recover it all as the voltage wont stay high enough. A lead battery typically comes with 16 Wh per Pound or in the case of this video, 320Wh or so. That's 30+ times less reserve for use of radio/light when engine is off.
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I'd love to hear what an EE major (they are here on the forum) thinks of this one. Personally I agree with the commentator.
If you, like most people, have 0 electrical background (who is Ohm and why did he pass laws??) then it is probably a good idea not to mess with this type of stuff.
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