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battery eliminator? help

Charging System, Wiring, Lighting
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deez
honda305.com Member
Posts: 145
Joined: Sun Sep 02, 2007 8:18 pm
Location: san francisco

battery eliminator? help

Post by deez » Sat Jun 14, 2008 12:30 am

i know there is a thread about this topic on this forum somewhere, just couldnt find it. so i found some more info on this subject and was hoping someone can let me know if what i have found is true. based on this info i picked up a capacitor that is rated 10,000uF 25V. im wondering if i hook this thing up will it ruin anything on my bike? or will it work fine?
any info is much appreciated.

so here is the info i had found:

You need an 'electrolytic' type of capacitor, that one where the terminals are marked '-' and '+'. You need one of suitably large capacity (the number of micro farads) and able to handle the voltage, (Volts rating).

Values between 6,800 and 15,000 microfarads are good. If you go for a bigger size two things happen; one, when you switch on the ignition you get a massive surge of power as the capacitor discharges. Two, the price of the capacitor rises very steeply above 15,000 micro farads.

The one in the computer power supply won't be up to the job unless its an unusually heavy duty power supply.


You must select a voltage 50% higher then the normal operating voltage to ensure your capacitor doesn't convert itself to a conductor! The battery is charged at 14.7 volts, so a 25 volt capacitor should be used. The insulator inside a capacitor is easily damaged by voltage spikes or surges which is why a higher value is always choosen. You could also use a 40 volt capacitor.


based on this info i picked up a capacitor that is rated 10,000uF 25V. im wondering if i hook this thing up will it ruin anything on my bike? or will it work fine?
any info is much appreciated.

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