RunRyder - need help dropping voltage...11.1 to 6???

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Tools and Field Equipment > need help dropping voltage...11.1 to 6???

929freak
Heliman
Location: Warrington Pa

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o.k. heres the deal I have a little fuel caddy that uses a small electric pump to fill my bird....the pump is rated fo 6-12 volts,I am using a 11.1 v lipo I had laying around,everything works fine,except that it pumps a little too fast.What I'd like to do is drop the voltage to around 6 volts,is there an easy way to accomplish
this?? resistors? what watt and what resistor? I've seen plenty of discussions on here about electronics
by some of you edjumicated folks(ha ha) so if ya can,please help me out!! thanks in advance........
here is a pic of my litle fuel caddy,so ya know what I'm working with.

04-29-2008 02:44 AM

theviper
Heliman
Location: Chandler

Just drop the cell count

Just use a 2 cell Lipo instead of a 3 cell. 2 cell is around 7-8 volts.. A little higher than your target 6v. but a long ways from 12 and 13V.

Viper

tech Tip of the month.. Make sure your RX & TX packs are fully charged before you leave the house!!

05-01-2008 11:19 PM

S76 Mech
Key Veteran
Location: Hatboro, Pa.

Going with the 2S might be the ticket.

~ Rick
"What ain't no country I ever heard of. They speak English in What?"

05-01-2008 11:32 PM

929freak
Heliman
Location: Warrington Pa

yeah a 2cell would be the way to go,but I have 3 three cell lipos left over from my cp pro,so I want to use them for something....

05-02-2008 03:57 AM

Dave M
Senior Heliman
Location: Mi.

Remove one cell then..

It's OK....It's not your fault !!!

05-08-2008 12:51 AM

tailspin90
Key Veteran
Location: Portage, IN

It's to fast on 3 cell??? For years we ran those pumps off a power pannel that was hook up to a 12V battery. I've been using a 3cell lipo myself and don't see any problems.

Seriously, it's to fast????

Tailspin90

05-09-2008 02:12 AM

929freak
Heliman
Location: Warrington Pa

after using it a few times,I'd have to agree w/ everyone...its perfect ,not as fast as it seemed on the work bench.. I guess at 2am after putting it together and testing it as quietly as possible so I don't wake the baby didn't give me a true "field" test...thanks again

05-09-2008 03:53 AM

tailspin90
Key Veteran
Location: Portage, IN

Good deal!!!!

Tailspin90

05-09-2008 12:06 PM

PilotDaz
Senior Heliman
Location: Seattle, WA