RR Rated M For Mature
HOME   rrTV-PHOTO   GALLERIES   MY GALLERY   HELP-FAQ
myHOME PM pmRR MEMBERS 843 ONLINE 18 EVENTS SEARCH REGISTER  START HERE
 
1 page627 viewsPOST REPLY
JR-Spektrum . E-flite . Fast Lad Performance

.
.
Radio - Servo - Gyro - Gov - Batt > info request: switching to Lithium Polymer receiver batteries
 
 
Vinnie
Senior Heliman
Location: Miami Beach, Florida

My Posts This: Topic  Forum		One of my battery packs for an electric helicopter ruptured a cell (it was a 4s4p Thunder Power pack).

I returned it to them thinking they could just replace the cell but they said that the best they could do was carve out the entire 4p block containing the ruptured cell and send me back a 3s3p pack.

This got me thinking - I could build two 2s3p packs out of the remaining cells and use them as receiver battery packs with 6000mAh capacity.

Does anyone have experience with using voltage regulators? All of my systems are running 4.8V Nickel-Cadmium.

Specifically, what voltage should I run at? Would it be 4.8V? Or 6.0V? Or something in between?

How do Futaba GV-1, GY-401, GY-601, 9252, 9253, and 9402 react to 6 volts? To 5.# volts? To steady 4.8V?

What about heat, is this a problem?
10-30-2003 Over year old.
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE  
 
 
Alan Szabo Jr
Senior Heliman
Location: Las Vegas, Nevada

My Posts This: Topic  Forum		Voltage Regulator

I run all my electronics on a Duralite 5.1V regulator.

Alan Szabo Jr.
10-30-2003 Over year old.
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE   HOMEPAGE   GALLERY
 
 
Vinnie
Senior Heliman
Location: Miami Beach, Florida

My Posts This: Topic  Forum		Yes

5.1V makes sense.

What do I do with my LED voltage display? It's going to show the same value all the time.

From the Duralite documentation, you can check the voltage at the special meter lead, but this is inconvenient.

Is there a way to keep the LED voltage display around?
10-30-2003 Over year old.
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE  
 
 
Heli-Driver
Elite Veteran
Location: Arlington, TX

My Posts This: Topic  Forum		Even with a regulator you can still use the LED monitor you have. Granted, it's not as informative as with a 4.8 pack but it's nice to know you still are at or above 5.1v and you'll see a problem before it's a problem with any luck.



Raymond

Predator Gasser SE/231 X 2
Century Helicopters
10-30-2003 Over year old.
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE   HOMEPAGE   GALLERY
 
 
Vinnie
Senior Heliman
Location: Miami Beach, Florida

My Posts This: Topic  Forum		Done

I used a 5.4V regulator from MPI. When the input voltage drops below 5.4 it becomes unregulated. This gives me a little more room for the LED display.

I'm using a Thunder Power 2s4p lithium polymer stick to replace a 4 Sub-C pack in my Fury Extreme.

It has 8000mAh capacity (!!!!)

I'm very pleased.
11-02-2003 Over year old.
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE  
 
 
1 page627 viewsPOST REPLY
Ace Hobby . Esprit Model . Thunder Power RC

.
.
Radio - Servo - Gyro - Gov - Batt > info request: switching to Lithium Polymer receiver batteries
 Print TOPIC Advertisers 

Subscribe to This Topic

Tuesday, November 24 - 4:04 am - Copyright © 2000 - 2009 runryder.com | email | link to rr | START HERE | NF