Quote:
Originally Posted by What's_nitro?
A switch is also good for preventing the spark next time you plug in the battery. If you shut it off by the switch before unplugging the battery then the caps remain charged, and voila- no spark! If you shunt the switch then the MMM will always discharge the caps when you remove the battery and so you will always have the biggest spark possible when you plug them in again.
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This was true for both my V2s but no longer true for my new V3. I found the electricity in V3's capacitors will leak away in just 10 or 20 seconds, while for my older V2, the charge would remain there for days!
So now my V3 will spark each time a pack is connected, no matter what the switch status was. There must have been some hardware change(like a resistor across the power poles) caused this change.