Elect. Guru help - Kayak Fishing Adventures on Big Water’s Edge

Nicko · 05-06-2013, 12:22 PM

Power = volts x amps = 24watts= 12v x 2amps
if you use 6v on the same device, the current (amps) will need to double to do the same work!

Iceman · 05-06-2013, 12:31 PM

Personal experience has led me to believe that the draw is 1/2 of what you see on the 12 volt pumps running 12 because the same Ah battery 6 volt seems to run twice as long. My 6 volt 12ah will easily run twice what my 12 v 10.5 will.

Lipripper92592 · 05-06-2013, 01:27 PM

Don't worry about the C rating for your pump. The rating becomes critical when you are pulling high amps, such as electric RC brushless motors. I have some 400 sized brushless motors that can pull up to 40 amps with the right speedcontroller. The packs I've run for the FF and bilge were 20 C 11.4volt packs, I can't remember the Mili amp hours, but somewhere in the 4000 range. Expensive batteries. If I remember correctly, the C rating is applicable to the charge rate as well, so depending on how fast you want to charge the pack, get the proper C rating for a fast charge.

05-06-2013, 12:31 PM	#2
Iceman Administrator Join Date: Mar 2005 Location: 1-2 miles off the point Posts: 6,943	Personal experience has led me to believe that the draw is 1/2 of what you see on the 12 volt pumps running 12 because the same Ah battery 6 volt seems to run twice as long. My 6 volt 12ah will easily run twice what my 12 v 10.5 will. __________________

05-06-2013, 12:22 PM	#1
Nicko Junior Join Date: Mar 2007 Posts: 24	Power = volts x amps = 24watts= 12v x 2amps if you use 6v on the same device, the current (amps) will need to double to do the same work!

05-06-2013, 01:27 PM	#3
Lipripper92592 Senior Member Join Date: Dec 2012 Posts: 516	Don't worry about the C rating for your pump. The rating becomes critical when you are pulling high amps, such as electric RC brushless motors. I have some 400 sized brushless motors that can pull up to 40 amps with the right speedcontroller. The packs I've run for the FF and bilge were 20 C 11.4volt packs, I can't remember the Mili amp hours, but somewhere in the 4000 range. Expensive batteries. If I remember correctly, the C rating is applicable to the charge rate as well, so depending on how fast you want to charge the pack, get the proper C rating for a fast charge.