6V - 12V ? - Kayak Fishing Adventures on Big Water’s Edge

Jason · 09-23-2009, 02:24 PM

Quote:

Originally Posted by Rob929

For you guys running 12 volts, if you want an easy option to control the volts going to your pump, go to Fry's electronics. In the computer fan area you will find a "fan speed control". It costs about $6 and gives you the ability to adjust your voltage from 3vdc- 12vdc using your 12 volt battery (thus allowing you to adjust your pumps flow rate).

If you already have a 12 volt setup (battery/ chargers etc) this is a great way to be able to tone your flow down, and save your battery. Not to mention if your battery is running your FF, you can have this "fan speed control" only wired inline with your bait pump, and still run full voltage to your FF.

I have been wondering if something like this existed, thanks for the info Rob.

Although I have plenty of juice with my current battery set-up, I really want to ditch the timer switch and reduce the noise from the pump. This should accomplish both and an easy enough mod to at least give a shot. Thanks again!

Rob929 · 09-23-2009, 02:44 PM

I can't take all the credit, I ran across this info while researching for my own bait tank. These guys were using the hobby speed control though, so finding the "fan speed control" was a great alternative. Its already set up for 12 volt input.. Check out the pic in the link. Notice the little dial that adjusts voltage;

http://img.tomshardware.com/us/2003/..._fanmate_1.jpg

This is very similar to the one I found at Fry's

PescadorPete · 09-23-2009, 05:48 PM

A little 6V/12V science. My 12 V pump running on 12 V uses 0.4 amps (4.8 watts). Running at 6 volts it uses 0.3 amps (about 1.8 watts). So at 6V it uses only 1/3 the power than 12V. That's why this works in your favor. Personally, I use a 12V battery and a Pulse Width Modulator.

dick fabulous · 09-23-2009, 07:59 PM

Does it have wiring info or is it in a bin? That looks like a cool idea. No effect to the FF? Store it in battery box of course.

peguinpower · 09-23-2009, 09:31 PM

I have a 12v pump running on a 6V battery. The battery is rated at 22ah, but the size of a 12v 8ah. A 6 hour run only pulls 4000 mah off it. So if I run it down to its full capacity, theoretically, it will run for 33 hours

Motor speed controls are cool. I am worried about complexity rearing its ugly head though. Specially since circuits dont take well to corrosion. A simpler design would be to place a resistor along the motor power line. This is a simpler speed control. Some experimentation will be needed to get the proper resistor value to get the right speed, but after that, you can dunk the whole thing and it won't fry.

/bing

deepdvr · 09-30-2009, 06:03 AM

Where did you find the 6V 22A battery?

Also, will reversing polarity increase run time while decreasing flow? If so, by how much approximately?

Thanks!

09-23-2009, 02:44 PM	#2
Rob929 Senior Member Join Date: Nov 2008 Location: San Diego Posts: 134	I can't take all the credit, I ran across this info while researching for my own bait tank. These guys were using the hobby speed control though, so finding the "fan speed control" was a great alternative. Its already set up for 12 volt input.. Check out the pic in the link. Notice the little dial that adjusts voltage; http://img.tomshardware.com/us/2003/..._fanmate_1.jpg This is very similar to the one I found at Fry's

09-23-2009, 05:48 PM	#3
PescadorPete Senior Member Join Date: Mar 2005 Location: Leucadia, CA Posts: 261	A little 6V/12V science. My 12 V pump running on 12 V uses 0.4 amps (4.8 watts). Running at 6 volts it uses 0.3 amps (about 1.8 watts). So at 6V it uses only 1/3 the power than 12V. That's why this works in your favor. Personally, I use a 12V battery and a Pulse Width Modulator.

09-23-2009, 07:59 PM	#4
dick fabulous Member Join Date: Sep 2009 Posts: 90	Does it have wiring info or is it in a bin? That looks like a cool idea. No effect to the FF? Store it in battery box of course.

09-23-2009, 09:31 PM	#5
peguinpower bing! Join Date: Mar 2007 Location: socal Posts: 246	I have a 12v pump running on a 6V battery. The battery is rated at 22ah, but the size of a 12v 8ah. A 6 hour run only pulls 4000 mah off it. So if I run it down to its full capacity, theoretically, it will run for 33 hours Motor speed controls are cool. I am worried about complexity rearing its ugly head though. Specially since circuits dont take well to corrosion. A simpler design would be to place a resistor along the motor power line. This is a simpler speed control. Some experimentation will be needed to get the proper resistor value to get the right speed, but after that, you can dunk the whole thing and it won't fry. /bing

09-30-2009, 06:03 AM	#6
deepdvr Senior Member Join Date: Aug 2009 Location: Carlsbad Posts: 591	Where did you find the 6V 22A battery? Also, will reversing polarity increase run time while decreasing flow? If so, by how much approximately? Thanks!