Got Shocked

[dogsdad]

Re: Got Shocked

Those shock collars don't shock the animal with just the voltage produced by the batteries. There are circuits in those things that produce high voltages from the low voltage, but at the cost of curent capacity---which is a good thing, because current is what kills. They work in a manner similar to the ignition system on a car or boat. Twelve volt battery providing the juice, but 50,000 or so volts firing the plugs.<br /><br />-dd-

 

[Paul Moir]

Re: Got Shocked

That sounds like the kill switch wire then. Carefully check it in your control box. It should be black with a yellow stripe.<br /><br />Dogsdad: V/R=I, and R is a constant (you). So current is dependent on voltage. Anyway, it's Joules that kill, since you need to factor time into the equation. 50 Joules or more can kill. Those deterrents work safely by limiting the amount of energy (measured in joules) provided. Ignition system energy is somewhere under 150mJ per spark, by the way.<br />Please forgive me for the rant. Can you tell you hit on one of my pet peeves!

 

[dogsdad]

Re: Got Shocked

Not sure what the mathematical meaning of Joules is, I don't work with that unit and I don't care to investigate it. But a current measurement, specifically amps, does take time into account as it is a rate of electron flow.<br /><br />If you are saying that amperage and time both have to be taken into account, I wouldn't argue because I do not know. I do know that some voltage sources, while producing tremendous voltages, often can do no more than shock (and scare the s*** outa ya!) because of very high internal resistances that limit the current output.

 

[eurolarva]

Re: Got Shocked

I retract my statement about a marine battery can kill you if you get across it. I did some checking and at worst case your bodies resistance sopping wet will be about 2000 ohms. Take that into account on a 12 volt battery that means you would take about 6milli amps through the ticker. It takes at least 30 milli amps to cause a chance of heart failure and chances are your body will never be below 10K. I have accidently tried the screw driver on the battery terminals and that does indeed make a good welder.

 

[dogsdad]

Re: Got Shocked

Even if a 12-volt battery can't hurt you, I know that if you stick your tongue on one of those small 9-volt batteries, it will bite you! I did that once when I was a kid. Maybe it's a real good thing the terminals on automotive and marine 12-volt batteries are so far apart.

 

[ZmOz]

Re: Got Shocked

One day I dropped a 9v on the floor accidently in front of my dog. He licked it...funniest thing I've ever seen.

 

[Peter J Fraser]

Re: Got Shocked

Ive had a shock from 12v.<br />Boat in water, standing in water, leaned into boat, touched battery + term, bingo!!!<br />Not a big belt but a good old tingle all the same.<br /><br /> <br />Peter

 

[jimr]

Re: Got Shocked

just rechecked the voltage and it is 142vdc running thinking poss key switch or whoever fixed the wires at the red plug before i got it screwed something up the boat runs pretty good so i don't know maybe thats why i got it for 1200 bucks

 

[jimr]

Re: Got Shocked

I think i just fixed it when the previous ower rewired the plug they crossed the black/yellow with the ground. so when i redid their blue butt connectors with mine i swapped 1 wire at a time. paying the 30 bucks for an owners manual just paid for it self. I want to thank everyone for their help Jim

 

[eurolarva]

Re: Got Shocked

Congrats on fixing the problem. Now we should move this to dockside chat so we can continue debating on the issue of car batteries killing people

 

[dogsdad]

Re: Got Shocked

A friend of mine who lived and worked on a farm was working on a tractor one day when the battery slid off the tractor. One of the farm cats just happened to be standing in the wrong place, and the battery crushed his poor little skull. I would imagine one of those great big batteries could do a human being in under similar circumstances.<br /><br />So, I think maybe a 12-volt battery CAN kill.<br /><br />

 

[mred 2436]

Re: Got Shocked

did somebody say something about betting on the plug wires?

 

[Maximerc]

Re: Got Shocked

I know this is a old post but .... 9 volts is enough to kill if given enough current and you get it across the heart..

 

[cajun555]

Re: Got Shocked

Try this to see if 12 vdc won't affect you: 100 degrees outside, lean on fender a while, get the ol belly to sweating then unhook positive cable off battery.

 

[gator8899]

Re: Got Shocked

jimr,<br /><br />I don't understand what you said you did to fix this. My boat is also shocking me. I have a 75 HP Johnson on a pontoon boat. I touched the key and the metal railing at the same time. I got a shock.<br /><br />I then tried to turn off the motor, but the key wouldn't turn it off. I unplugged the gas line and it was taking forever to die, so with the motor cover off, I worked the throttle to speed up the motor. I was running the motor hooked to a hose (water everywhere). I think I rested my forearm on the motor housing while working the throttle and I got a really strong shock.<br /><br />Can you explain to me what you did? Hopefully I have the same issue, so I can fix this. This was the first time this motor has been started on this boat. I just moved it over from a fiberglass boad. The key turned it off fine there.