R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 10-20-2005, 07:26 AM   #766
Tech Fanatic
 
Alex_kipper's Avatar
 
Join Date: Oct 2004
Posts: 907
Trader Rating: 1 (100%+)
Default

Yes the charger is suppose to do that, when the voltage goes up, the amps should go down.
Alex_kipper is offline   Reply With Quote
Old 10-20-2005, 12:57 PM   #767
Tech Champion
 
geeunit1014's Avatar
 
Join Date: Sep 2005
Location: The dirty burnie
Posts: 5,505
Trader Rating: 12 (100%+)
Default

Quote:
Originally Posted by B&O
Well, I only put 1.0A. As the voltage picks up, charge amp starts to decrease...at the half way, the voltage is about 12.5 the charge will ended automatically. My power supply is suppling about 14V.

Someone else suggest me to get a new supply that they go up 15V and see how this will help?
this happens w/ any charger doing like 8 cells or a 3 cell lipo, you have to have like 14-15 volts to keep the amps up, othwerwise th charger gets confused when you only have 12v input and the battery (output)is showing 12.1
this happens to me when i do my tx packs and dont have the juice cranked up
__________________
Mike Gee

Awesomatix USA/Pyscho Cells Racing/Tekin/Sweep Racing/RSD/180 Raceway/Johns Mobile Raceway/TQ Wire/Avid/Sanwa
geeunit1014 is offline   Reply With Quote
Old 10-20-2005, 01:05 PM   #768
Tech Elite
 
litespeed-dom's Avatar
 
Join Date: Oct 2002
Location: Beaverton, Oregon
Posts: 3,990
Trader Rating: 4 (100%+)
Default

Quick question...

.02 delta peak for the ENTIRE pack equivalents to what in our CTX charger??? I thought I understood, but now I'm confused. Is our deltaV adjustment by pack or by cell?

Thanks.
Dom
__________________
Team Kyosho America - Team Br00d Racing - Team R/C Plus - GQ Racing Tyres - Slapmaster Tools - FSX Racing
litespeed-dom is offline   Reply With Quote
Old 10-20-2005, 01:31 PM   #769
Regional Moderator
 
kumpol's Avatar
 
Join Date: Mar 2004
Location: Atlanta, Georgia
Posts: 970
Trader Rating: 1 (100%+)
Default

Delta peak value setting on CTX Cell Master:
03 means 3mV (0.003V).
You can set the value from 03 to 99mV/pack
or
you can set Zero Delta Peak at 00 (0mV).

Hope this helps.
kumpol is offline   Reply With Quote
Old 10-20-2005, 01:32 PM   #770
JL
Tech Adept
 
Join Date: Oct 2004
Location: Sydney, Australia
Posts: 116
Trader Rating: 1 (100%+)
Default

Quote:
Originally Posted by JL
I've just got myself a Ctx charger and after playing with it for about an hour I'm very impressed with it.

I've changed the melodies and tones to my tastes but....

How can you turn that anoying start up tone off?

I can't see it anywhere in the manual.

Thanks,
Jason
Anyone???
JL is offline   Reply With Quote
Old 10-20-2005, 01:59 PM   #771
Tech Elite
 
litespeed-dom's Avatar
 
Join Date: Oct 2002
Location: Beaverton, Oregon
Posts: 3,990
Trader Rating: 4 (100%+)
Default

Quote:
Originally Posted by kumpol
Delta peak value setting on CTX Cell Master:
03 means 3mV (0.003V).
You can set the value from 03 to 99mV/pack
or
you can set Zero Delta Peak at 00 (0mV).

Hope this helps.
Thanks Kumpol, please allow me to throw out an example and for you to check on my math...

So if I need a pack to peak @ .02V, that means I'll be setting the charger to 20??? Is my math (thinking) correct?

thanks,
Dom
__________________
Team Kyosho America - Team Br00d Racing - Team R/C Plus - GQ Racing Tyres - Slapmaster Tools - FSX Racing
litespeed-dom is offline   Reply With Quote
Old 10-20-2005, 04:11 PM   #772
Tech Champion
 
Korey Harbke's Avatar
 
Join Date: Oct 2002
Location: Redmond, WA
Posts: 6,126
Trader Rating: 13 (100%+)
Default

Yup, but the thing about the cell master is it's a super linear charge, so the actual peakl detect is a little different. I basically adjust delta peak to get the correct final charging temp.
__________________
Xray - RC America - Hudy - Apex RC - LRP - Protoform - AVID - 1Up Racing - Xenon - Xpert - Sanwa - RC Mission America - SpeedZombi - Slapmaster Tools - Turtlemaster Racing - Seattle RC Racers
Korey Harbke is offline   Reply With Quote
Old 10-20-2005, 04:42 PM   #773
Tech Elite
 
litespeed-dom's Avatar
 
Join Date: Oct 2002
Location: Beaverton, Oregon
Posts: 3,990
Trader Rating: 4 (100%+)
Default

Quote:
Originally Posted by Sushi Boy
Yup, but the thing about the cell master is it's a super linear charge, so the actual peakl detect is a little different. I basically adjust delta peak to get the correct final charging temp.
So since we are in the same region, about the same temperature, use same IB's, run the same car.... use the same charger.... what's your starting point Sush!?

Dom
__________________
Team Kyosho America - Team Br00d Racing - Team R/C Plus - GQ Racing Tyres - Slapmaster Tools - FSX Racing
litespeed-dom is offline   Reply With Quote
Old 10-20-2005, 06:57 PM   #774
Tech Rookie
 
Son In-Kwon's Avatar
 
Join Date: Jul 2005
Location: Incheon, Korea
Posts: 13
Default

Hi Sushi boy

I think, final charging temp is affected by outside temp.

The starting temp is very important.

Low starting temp(cold battery) makes low final chrging temp.

Low final chrging temp means that loose punch.

Much More Battery Warming Tray is warmer that can heat up your battery

before charging.

Too high delta peak makes over charge that reduce battery`s number of life cycle.

Correct charging method give you more punch and long life of your battery.


Sorry for my poor english.


Son In-Kwon

from south Korea.

Last edited by Son In-Kwon; 10-20-2005 at 07:30 PM.
Son In-Kwon is offline   Reply With Quote
Old 10-20-2005, 07:06 PM   #775
B&O
Tech Apprentice
 
B&O's Avatar
 
Join Date: Dec 2004
Posts: 88
Default

Thank you for your advises.

I will look into a new supply with 15V...... Not too many charger can withstand high input though....
B&O is offline   Reply With Quote
Old 10-20-2005, 08:17 PM   #776
Tech Fanatic
 
badboy's Avatar
 
Join Date: Sep 2001
Location: jygs
Posts: 820
Trader Rating: 14 (100%+)
Default

Hi guys. What settings do you use for Tamiya 2400 Nicd stick packs? Thanks...
__________________
slow is fast . . .
badboy is offline   Reply With Quote
Old 10-20-2005, 08:50 PM   #777
Tech Regular
 
Join Date: Jan 2005
Location: Auckland, New Zealand
Posts: 328
Default

so what is a good temperature when the charging is finished?
slightly warm? 40degree C +? or ??

that's for the GP3300 or 3700..
yellow15 is offline   Reply With Quote
Old 10-20-2005, 08:53 PM   #778
Tech Fanatic
 
Nexus Racing's Avatar
R/C Tech Elite Subscriber
 
Join Date: May 2005
Posts: 848
Default

Quote:
Originally Posted by TeamMuchMore
thanks arun for always helping muchmore guys on rctech~
No problem, James .


Quote:
Originally Posted by lightspeed-dom
Thanks Kumpol, please allow me to throw out an example and for you to check on my math...

So if I need a pack to peak @ .02V, that means I'll be setting the charger to 20??? Is my math (thinking) correct?

thanks,
Dom
A setting of 20 would be the equivalent of .02V on another charger. But, as Sushi Boy pointed out, the super linear current of the CM requires different (lower) delta peak settings to be set. In fact, these settings are lower than other chargers even offer!
05-06 (.005V-.006V) is a good starting point for IB cells.

Refer here for some more info and starting points for charging IB cells.


Quote:
Originally Posted by badboy
Hi guys. What settings do you use for Tamiya 2400 Nicd stick packs? Thanks...
It has been said that NiCDs perform best with a linear charge. The charging rate is entirely up to you...just don't melt your connectors .

As a general rule:
Lower charging rate=more run-time, less power
Higher charging rate=more power, less run-time

NiCD's also like higher delta peak settings. I would start with an 09 or 10 setting.

Additionally, a stick pack has more resistance in its connections. This can cause a false peak, especially in combination with lower delta peak settings, so you will probably want to set a long-lockout for the first 10-15 minutes of charge.
__________________
NEXUSRACING.com
Nexus Racing is offline   Reply With Quote
Old 10-20-2005, 09:00 PM   #779
Team EAM
 
EAMotorsports's Avatar
 
Join Date: Dec 2001
Location: Murfreesboro, TN
Posts: 9,158
Trader Rating: 79 (100%+)
Send a message via AIM to EAMotorsports
Default

Arun you coming up this weekend still?

EA
__________________
Contact Us
Team EAM, Our Facebook
Team EAM | Xray | RCAmerica | Hudy | APEX Raceway and Hobbies | RC Mission | Killer Concepts | AVID | Hobbywing.
EAMotorsports is offline   Reply With Quote
Old 10-20-2005, 09:08 PM   #780
Tech Fanatic
 
Nexus Racing's Avatar
R/C Tech Elite Subscriber
 
Join Date: May 2005
Posts: 848
Default

Quote:
Originally Posted by babytoy101
hi!

what does the flex feature do on the battery when i enable it on mm cell master? like in ni-mh battery!
I don't personally have much experience with using flex charging, but it is basically a non-linear form of charging that de-crystalizes cells during charge. It was most commonly utilized with NiCDs before the arrival of NiMHs.

You can envision it as something like this:
charge -> charge -> charge -> quick discharge -> charge -> charge -> charge -> quick discharge

This is one form of flex charging. Most chargers thatcan flex have the option of increasing or decreasing the intensity. This is accomplished in the setup menu for each profile on the cell master...Fn (no flex), F1, F2, F3, etc

The best way to get performance out of your NiMH batts (today, at least), though, is either with a linear or CTX charge. Some who have flex charged their NiMH batts have reported a decrease in power.

A lot of us are now starting to basically flex-discharge our batteries with the Spintec Battery Manager and Trinity Dyna-Pulse dischargers (and upcoming CTX-D from MuchMore ). These units will pulse/flex-discharge your packs to condition them and keep them good.

I'm sure flex charging will make a big comeback some day...just like dead-shorting did .

__________________
NEXUSRACING.com
Nexus Racing is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
FS/FT: TEAM MUCH MORE Motor Master & Cell Master litespeed-dom R/C Items: For Sale/Trade 15 06-15-2006 08:44 PM
Team Orion Advantage w/ LiPo or Team Much More Cell master? RH Customs Electric On-Road 6 04-06-2006 06:05 PM
Team Much More Cell Master FRP R/C Items: For Sale/Trade 4 01-25-2006 03:04 PM
Team Much More Racing CTX Cell Master and CTX Motor Master letitroll R/C Items: For Sale/Trade 7 11-18-2005 11:25 AM
Team Orion Advantage or Team Much More Cell Master charger alana07 Electric On-Road 1 12-18-2004 05:37 AM



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 06:06 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