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SV650s not starting... hellpp!!!

Seeing a spark is evidence of a high difference in potential (potential = voltage), thus connecting a low/dead battery to a charger will arc from further away than if your battery was at 12.9v. If there were sparks disconnecting the charger, maybe your battery is not fully recharged. There should be no spark when reconnecting with the bike. Thought Id elaborate a bit (late).
 
kgmoto said:
Seeing a spark is evidence of a high difference in potential (potential = voltage), thus connecting a low/dead battery to a charger will arc from further away than if your battery was at 12.9v. If there were sparks disconnecting the charger, maybe your battery is not fully recharged. There should be no spark when reconnecting with the bike. Thought Id elaborate a bit (late).
Click to expand...

Fortunately your post does not make much sense, so no problem.

There is ALWAYS a spark connecting a charger to a battery. Charging voltage is always over 14, battery charged potential is always around 13.2 or less. As far as the distance, at 14 volts nobody is going to be able to see the difference. It takes several thousand volts to arc a few mm. At 12 to 14 volts DC the gap ( in dry or WET air) will be maybe a thousandth of a millimeter. 3000 volts DC will arc the grand total of 3 mm in the most conductive air, and maybe a half mm in dry air.

I've seen 100k volts arc to ground in a heavy fog off a transmission tower with faulty insulation. It's an amazing sight. FLASH like a giant flashbulb going off, afterimage in retina of white blue arc.
 
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Sweet vids! I always wanted to take a bow and arrow with fifty feet of #10 wire attached and shoot it over a three phase transmission line, just to watch the pretty lights. :)

Worst arc ever close up was when i dropped a wrench in a hot bus gutter (3 phase delta 120/240) fused at 600 amps, with no current limiting protection. It destroyed the wrench and browned out the neighborhood without blowing the fuse. It also blew hot metal all over the room and scared the ever loving crap out of me.
 
I like in the first one how when the flames reach the other set of lines they cause a secondary arc there (flames are plasma, highly ionized gases, and therefore pretty conductive).

Cheers

Lou
 
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