12/24

At least that's what I'm doing... for a little while longer.

"RGarri7470" wrote in message
...
If I had a good 12 volt motor that was strong enough and in good shape,
but I
wanted more battery life, I would keep the motor, add a second battery in
parallel to the first and double the time it would run.
Ronnie

http://fishing.about.com

And the reason that air-conditioner compressors use 240 volts instead of
120. Less current equals lower electrical bills, and more efficiency.


"Jeff Durham" wrote in message
...
That is correct. If a trolling motor draws 30 amps at 12v for a certain
thrust, a 24v system will only draw 15 amps for the same amount of thrust.
This is hypothetical. In practice, it will be slightly different. That's
the advantage of a gas dryer using 240 volts rather than 120 volts in that
the amount of current will be half.

Jeff


"Todd Copeland" wrote in message
nk.net...
wrote in message
news:a4GBd.57477$k25.3566@attbi_s53...
A 24 volt system only uses half the current to do the same job as a 12
volt
system, a 36 volt system uses 1/3 the current.

So a 24 volt system only needs 12 volts to do the same job as a 12 volt
sytem? Hmmm....

Jeff Durham wrote:
That's
the advantage of a gas dryer using 240 volts rather than 120 volts in that
the amount of current will be half.

Jeff


I thought gas driers used gas.G

But hes,, same amount of work to be done, twice the voltage = half the
current draw. But the WATTAGE will be the same. It won't affect yo9ur
electric bill, but all the wires can be thinner, etc.

As regard the question that started this thread though, in a small boat,
if I was going to have a 50 pound thrust trolling motor, I'd use a 12
volt 50 pound motor (as a matter of fact, I do exactly that). Why would
I want the extra 60-plus pounds of the second battery in the boat? If I
have to, I can fish for 2 days off a full charge on one group 29 marine
battery and not feel ANY reduction in power. If I was running a boat
that would benefit from 70-plus pounds, I'd go to 24V in a new york
minute. But not in a boat that works fine with 50.

I think you missed the point of my post. The post I mentioned mentioned that
a 24 volt system was twice as much as a 12 volt system. I thought that a
little obvious. But it's no longer funny when this is pointed out.

"Jeff Durham" wrote in message
...
That is correct. If a trolling motor draws 30 amps at 12v for a certain
thrust, a 24v system will only draw 15 amps for the same amount of thrust.
This is hypothetical. In practice, it will be slightly different. That's
the advantage of a gas dryer using 240 volts rather than 120 volts in that
the amount of current will be half.

"Todd Copeland" wrote in message
So a 24 volt system only needs 12 volts to do the same job as a 12 volt
sytem? Hmmm....

I think you missed the point of my post. The post I mentioned mentioned that
a 24 volt system was twice as much as a 12 volt system. I thought that a
little obvious. But it's no longer funny when this is pointed out.

"Jeff Durham" wrote in message
...
That is correct. If a trolling motor draws 30 amps at 12v for a certain
thrust, a 24v system will only draw 15 amps for the same amount of thrust.
This is hypothetical. In practice, it will be slightly different. That's
the advantage of a gas dryer using 240 volts rather than 120 volts in that
the amount of current will be half.

"Todd Copeland" wrote in message
So a 24 volt system only needs 12 volts to do the same job as a 12 volt
sytem? Hmmm....

Todd Copeland wrote:

wrote in message
news:a4GBd.57477$k25.3566@attbi_s53...

A 24 volt system only uses half the current to do the same job as a 12

volt

system, a 36 volt system uses 1/3 the current.


So a 24 volt system only needs 12 volts to do the same job as a 12 volt
sytem? Hmmm....


Todd,

Current and Voltage are not the same thing. Think of voltage as the
rate of flow in terms of speed. Current is the power behind the flow.

Say a Mack truck is moving at 5 mph and it hits your car...disaster

If a bicycle hits your car at 5 mph..then there is a scratch. Thats the
diff between current and voltage!
BD

Todd Copeland wrote:

wrote in message
news:a4GBd.57477$k25.3566@attbi_s53...

A 24 volt system only uses half the current to do the same job as a 12

volt

system, a 36 volt system uses 1/3 the current.


So a 24 volt system only needs 12 volts to do the same job as a 12 volt
sytem? Hmmm....


Todd,

Current and Voltage are not the same thing. Think of voltage as the
rate of flow in terms of speed. Current is the power behind the flow.

Say a Mack truck is moving at 5 mph and it hits your car...disaster

If a bicycle hits your car at 5 mph..then there is a scratch. Thats the
diff between current and voltage!
BD

"Bill Durham" wrote in message
news:RNlCd.20154$wu4.890@attbi_s52...
Todd Copeland wrote:

wrote in message
news:a4GBd.57477$k25.3566@attbi_s53...

A 24 volt system only uses half the current to do the same job as a 12
So a 24 volt system only needs 12 volts to do the same job as a 12 volt
sytem? Hmmm....


Todd,

Current and Voltage are not the same thing. Think of voltage as the
rate of flow in terms of speed. Current is the power behind the flow.

Hey... I didn't say it.

"Bill Durham" wrote in message
news:RNlCd.20154$wu4.890@attbi_s52...
Todd Copeland wrote:

wrote in message
news:a4GBd.57477$k25.3566@attbi_s53...

A 24 volt system only uses half the current to do the same job as a 12
So a 24 volt system only needs 12 volts to do the same job as a 12 volt
sytem? Hmmm....


Todd,

Current and Voltage are not the same thing. Think of voltage as the
rate of flow in terms of speed. Current is the power behind the flow.

Hey... I didn't say it.

On 1/3/2005 6:53 PM, Bill Durham wrote:
snip Todds

Current and Voltage are not the same thing. Think of voltage as the
rate of flow in terms of speed. Current is the power behind the flow.
Or even visa-Versa. Voltage is the push. Current is the amount of
electricity.


Say a Mack truck is moving at 5 mph and it hits your car...disaster

If a bicycle hits your car at 5 mph..then there is a scratch. Thats the
diff between current and voltage!
BD
Here the voltage (5mph) is the same, but the current (mass of the
truck/bike) are different.


pat