R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Electric On-Road

Reply
 
Thread Tools Search this Thread
Old 08-08-2008, 10:26 AM   #1231
Tech Master
 
The Bear's Avatar
 
Join Date: Feb 2007
Location: New Hampshire
Posts: 1,451
Trader Rating: 13 (100%+)
Default

Sweet! thats 1 less outfit to pack!
__________________
Sponsors for 2013 - NoVak / Team Scream / liquidrc.com
The Bear is offline   Reply With Quote
Old 08-08-2008, 11:25 AM   #1232
Tech Master
 
Join Date: Jan 2006
Location: Kansas City, MO
Posts: 1,260
Trader Rating: 13 (100%+)
Send a message via AIM to HenBeav
Default

Quote:
Originally Posted by John Tag View Post
I hear Pink Jump Suits are being handed out for the Sportsman A Main drivers....
good, we'll have something to wear that way then
__________________
[URL]http://www.fastlanehobby.com[/URL]

Support your local Lowe's, Walmart and Layne Machine Works INC.
HenBeav is offline   Reply With Quote
Old 08-08-2008, 12:12 PM   #1233
Moderator
 
StephenSobottka's Avatar
 
Join Date: Jul 2002
Location: Milwaukee, WI
Posts: 3,267
Trader Rating: 8 (100%+)
Send a message via AIM to StephenSobottka
Default

*sigh* Lack of knowledge for heating of lipo batteries. SMC bakes them in an oven at 180* for a temp test! The heat really gives a big performance boost to a lipos performance...People should really read, research, and do their own testing to see what happens. The battery in a mod run will hit the 130 degree mark anyways halfway through...
__________________
~~Stephen Sobottka~~
SMC Racing
StephenSobottka is offline   Reply With Quote
Old 08-09-2008, 12:55 AM   #1234
Tech Master
 
The Bear's Avatar
 
Join Date: Feb 2007
Location: New Hampshire
Posts: 1,451
Trader Rating: 13 (100%+)
Default

warming, no warming,,, whatever. If everyone is doing the same thing, it doesn't really matter. Charge and go!
__________________
Sponsors for 2013 - NoVak / Team Scream / liquidrc.com
The Bear is offline   Reply With Quote
Old 08-09-2008, 06:08 AM   #1235
Tech Champion
 
abailey21's Avatar
R/C Tech Elite Subscriber
 
Join Date: Aug 2007
Location: SoCal
Posts: 5,224
Trader Rating: 36 (100%+)
Default

+1


Quote:
Originally Posted by The Bear View Post
warming, no warming,,, whatever. If everyone is doing the same thing, it doesn't really matter. Charge and go!
__________________
K.C.C.O.
abailey21 is offline   Reply With Quote
Old 08-09-2008, 08:45 AM   #1236
Tech Regular
 
energyracing's Avatar
 
Join Date: Oct 2007
Location: Toronto, Ontario
Posts: 339
Trader Rating: 1 (100%+)
Default

Good Luck everyone, I wish I could be there.

Scotty puts on a great show.
__________________
George B.
[email protected]
__________________
Sponsored by Serpent / SRX2 MM, RM, SC / Serpent SRX4
MoFo paints
energyracing is offline   Reply With Quote
Old 08-09-2008, 10:15 AM   #1237
Tech Master
 
Join Date: Jan 2006
Location: Kansas City, MO
Posts: 1,260
Trader Rating: 13 (100%+)
Send a message via AIM to HenBeav
Default

Quote:
Originally Posted by The Bear View Post
warming, no warming,,, whatever. If everyone is doing the same thing, it doesn't really matter. Charge and go!
yes that would be fine if everyone was running lipo, but since there will be nimh guys then its not equal, go ahead charge exploding nimh at 12 amps, but getting a lipo to perform at its best is not allowed.
__________________
[URL]http://www.fastlanehobby.com[/URL]

Support your local Lowe's, Walmart and Layne Machine Works INC.
HenBeav is offline   Reply With Quote
Old 08-09-2008, 02:06 PM   #1238
Tech Master
 
The Bear's Avatar
 
Join Date: Feb 2007
Location: New Hampshire
Posts: 1,451
Trader Rating: 13 (100%+)
Default

Bah, go ahead and charge nimh @ 12amps. When you start to dump 4 minutes into the race and need a new pack every run..... well, I'm willing to compete with anyone using nimh using any method they want.

a pink tu-tu bet says the tc classes will be dominated by lipo.
__________________
Sponsors for 2013 - NoVak / Team Scream / liquidrc.com
The Bear is offline   Reply With Quote
Old 08-09-2008, 03:47 PM   #1239
Tech Master
 
Join Date: Feb 2004
Location: E-Town Posse
Posts: 1,573
Trader Rating: 2 (100%+)
Default

Quote:
Originally Posted by HenBeav View Post
yes that would be fine if everyone was running lipo, but since there will be nimh guys then its not equal, go ahead charge exploding nimh at 12 amps, but getting a lipo to perform at its best is not allowed.
Couldnt agree more, so can i discharge the lipo before i charge it to get heat in it... No warming device
__________________
Team Associated, Reedy, Tekin, Futaba, Putnam, Protoform, BSR, SXT, Reflex Racing, McPappy Racing, TQ Wire, Swifty Designs
Jeff Cuffs is offline   Reply With Quote
Old 08-09-2008, 04:10 PM   #1240
Tech Addict
 
imjonah's Avatar
 
Join Date: Oct 2003
Location: Colorado
Posts: 704
Default Hmmm I see a worm in this can

Now that lipos are going to be used in national competition, where drivers and teams are looking for the smallest of advantages, if there hasn't been already, there is going to be experimentation. People will try all sorts of different charging routines and protocals. Hopefully they will resist the urge but I think the whole idea of "experimenting" with lipos is inherently dangerous.

It maybe that their is a direct relation or corelation between those methods which provide the most performance boost and those methods which are the least likley to cause the battery to self distruct.
My guess is that it is just the opposite, it is like most other things, pushing a given component to its performance limit, will also push it to its safety limit.

You also have to factor in chance. What if charging method X gives a significant performance boost but has a 1% chance of the battery exploding like a hand grenade. Even a dozen tests of this method are not likely to reveal the real danger prior to some one(s) being hurt.

In general looking to the future I can see the need for limiting or regulating the actual charging process/parameters.
imjonah is offline   Reply With Quote
Old 08-09-2008, 05:42 PM   #1241
Tech Master
 
The Bear's Avatar
 
Join Date: Feb 2007
Location: New Hampshire
Posts: 1,451
Trader Rating: 13 (100%+)
Default

basically restating Sobottka's comment. There is a TON of information on threads like the SMC thread where testing has already been done under safe conditions by professional people.

if in the future there are rules and reg's on charging, it will probably be based off of a Scotty Earnst Production.........
__________________
Sponsors for 2013 - NoVak / Team Scream / liquidrc.com
The Bear is offline   Reply With Quote
Old 08-09-2008, 06:00 PM   #1242
Moderator
 
StephenSobottka's Avatar
 
Join Date: Jul 2002
Location: Milwaukee, WI
Posts: 3,267
Trader Rating: 8 (100%+)
Send a message via AIM to StephenSobottka
Default

If anyone has questions regarding the treatment of the newer lipos such as the SMC, Trakpower/Checkpoint packs, please don't hesitate to ask me if you have any questions regarding care or performance.
__________________
~~Stephen Sobottka~~
SMC Racing
StephenSobottka is offline   Reply With Quote
Old 08-09-2008, 06:51 PM   #1243
Tech Elite
 
Customworksking's Avatar
 
Join Date: Oct 2004
Location: Springfield ILLINOIS
Posts: 3,639
Trader Rating: 73 (100%+)
Default

Quote:
Originally Posted by StephenSobottka View Post
If anyone has questions regarding the treatment of the newer lipos such as the SMC, Trakpower/Checkpoint packs, please don't hesitate to ask me if you have any questions regarding care or performance.
how do i need to charge my SMC 4000 running 13.5 and 10.5
__________________
Team Xray | RC America| Hudy |Jaco |AKA
Customworksking is offline   Reply With Quote
Old 08-09-2008, 07:36 PM   #1244
Tech Lord
 
syndr0me's Avatar
 
Join Date: Dec 2004
Location: 5280 Raceway
Posts: 13,140
Trader Rating: 32 (100%+)
Default

Charge them at 1C. Warm them to 130F when it's legal. Done.
syndr0me is offline   Reply With Quote
Old 08-09-2008, 07:37 PM   #1245
Tech Champion
 
Still Bill's Avatar
 
Join Date: Jan 2004
Location: Reno, NV
Posts: 7,234
Trader Rating: 12 (100%+)
Default

Quote:
Originally Posted by syndr0me View Post
How are you Phi guys going to get around the rule that says you can't have a LiPo mounted diagonally in your car? :-D
No problem...I set all four wheels 16 degrees to the left. And the friction caused by doing that warms the lipo pack to exactly138 degrees F. Little tricky making right turns though; but, I'll get used to it.
__________________
Constantly evolving CRC WGT and WGT-R/T...Carpet & Asphalt...All thanks to Team CRC.

And a pair of Associated B6 buggies for turf and clay tracks.
Still Bill is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
"TITC" THAILAND INTERNATIONAL TOURING CAR CHAMPIONSHIP 2006 John Doucakis Electric On-Road 233 03-20-2016 03:30 PM
2006 International Indoor Championships @ Las Vegas, Nevada futureal Electric On-Road 1145 03-13-2007 10:44 PM
""" XRAY FK05 """ excellent cond/super clean/stock evostyle R/C Items: For Sale/Trade 9 06-29-2006 10:04 PM
2005 International Indoor Championships @ Las Vegas caleracer45 Electric On-Road 2219 01-04-2006 05:46 AM
Las Vegas Annual Spring Race "RD Logics Grand Prix" richey Nitro On-Road 214 04-25-2005 07:23 PM



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off



All times are GMT -7. It is currently 06:46 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net