Hi. I fabricate battery eliminators and use them on my bikes for several years.

For Nsr250 users I use capacitors rated at 20V. If there is an issue with the reg/ rec the battery eliminator dies in a matter of seconds and damage to the rest of the electronic circuits cannot occur.

I'm sorry to say that this is not the case if you've fitted a battery in there without first solving the issue as it will just boil the battery but current to the elctrics will not stop.
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