Replacing Bike Battery with 12v 10a industrial capacitor?

adamska125

New member
I've got access to alot of big industrail power capacitors at about 10A carring 12v, theoretically, if i could directly connect it to the dynamo (generatior) inside the bikes electrical system and used a kick-start for the first charge, it (on the second kick) would discharge the capacitor to the entire electrical system and start the engine, obv iv thought of putting it on a seperate circuit for ignition only, has anyone ever heard of this being attempted?

this would also mean that the bike would be lighter (no battery weight) quick and simple recharging aswell as not having to worry about leaving the lights on during the day

any tips / warnings if it has been done before.
just using the capacitors full charge of 10a 12v to start the bike and using the rest for lights etc would be a more efficent way of starting without having to drain (and eventually recharge) the battery over time,
theoretically it would discharge once the engine stops turning over and charge once it gets kicked over again, its a 3 stage process

empty capacitor + kick over = charged

charged capacitor + second kick = ignition of engine

ignition of engine recharges and powers all electrical systems until stopped, then (if it dies at a set of lights or somthing) there would possibly be a little charge or just 2 kicks away from starting again.
 
Capacitors are not rated in current, they are rated in Farads.

Any capacitor will be ten times larger than an equivalent battery.

Good luck, but I'm quite certain that this won't work.

.
 
Huuum!
Capacitors are generally large compared to batteries. They have much lower ESR than batteries, batteries have more capacity
Capacitors are rated in Farads, usually micro (millionths of) Farads; automobile are several Farads of capacity.
Leaving your lights on would have the same effect

Hope this answers your question and helps you
 
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