R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 01-02-2007, 10:16 AM   #16
Tech Champion
 
stiltskin's Avatar
 
Join Date: Jun 2005
Location: Virginia Beach
Posts: 5,368
Trader Rating: 102 (100%+)
Default

Quote:
Originally Posted by MR JOLLY
IB`s don`t like pulse stuff
GP are bullit proof compared to IB cells
I thought that the purpose of pulse charging was to give the batteries a break during the charge cycle. If IB's can handle the constant linear charge without a break, then it seems that the GPs are the weaker cell. Not flaming, just peaked my curiousity. Sorry to get off topic.

I leave the remaining charge in the pack from one week to the next. On race day, I discharge it and tray it on the Tekin tray right before charging.
__________________
Tony Rumple
Team EAM // Gravity RC
stiltskin is offline   Reply With Quote
Old 01-02-2007, 11:12 AM   #17
Tech Elite
 
MR JOLLY's Avatar
 
Join Date: Mar 2004
Location: MOOD;; feeling good not racing ,saving shed loads of money,lovely Tan i have aswell
Posts: 4,762
Default

Pulse charging sort of burbing really
since no 2 makers have the same time scale setup for there pulsing modes so comparing is hard
IE;charge 4 mins, 2 sec lapsed, then charge again for 4 min, but another company can have charge 4min, 3sec lapsed before strating again (this is reall roughly thinking out load )

But i have been told /have seen posted/ also found out the hard way IB`s don`t like pulse charging ,even pulse discharging is not good
even Step charging i don`t think is great for these cells

But GP cells are much tougher ,can take even dead shorting with ease ,But the IB`s will complain about the treatment

Disclaimer
if i have got this completley wrong then post on here & set right
but the GP cells are tougher wise then IB`s (for now )

don`t forget the East power cells are being touted that they are stronger then IB`s aswell, phsyically (but i think thats wishfull thinking) at the Mo!
__________________
EAMotorsports;;BRCA 27t National 2007 Champ's
FKO4,AdyB fan club !!
saying of the month;;The Past is History, the Future is a Mystery, this Moment is a Gift- that's why it's called The Present.
MR JOLLY is offline   Reply With Quote
Old 01-02-2007, 12:31 PM   #18
Tech Regular
 
stuey's Avatar
 
Join Date: Jan 2006
Posts: 393
Trader Rating: 1 (100%+)
Default

Quote:
Originally Posted by MR JOLLY
Ooops 0.8v sorry

still i say not under 0.8v then
means you have to baby sit it though ,
hey colin

ive never had any probs discharging down to 0.0 just before charging to race the only time ive ever had an ib cell go down when i used a spintec what a load of tosh they are.

as you know colin i use a eagle single cell discharger which cuts off at 0.9 or 0.0 and use a eagle cdc version 5 and 6 and charge at 7ah cut off 3mv and the car is always fast.

i think people ought to experiment for them selfs with the equipment they have.

oh colin you racing thursday

stu
stuey is offline   Reply With Quote
Old 01-02-2007, 12:43 PM   #19
Tech Elite
 
MR JOLLY's Avatar
 
Join Date: Mar 2004
Location: MOOD;; feeling good not racing ,saving shed loads of money,lovely Tan i have aswell
Posts: 4,762
Default

not sure
proberly like too ,but for sure on sunday 7th
__________________
EAMotorsports;;BRCA 27t National 2007 Champ's
FKO4,AdyB fan club !!
saying of the month;;The Past is History, the Future is a Mystery, this Moment is a Gift- that's why it's called The Present.
MR JOLLY is offline   Reply With Quote
Old 01-02-2007, 01:14 PM   #20
Tech Rookie
 
Join Date: Jan 2005
Location: Auckland, New Zealand
Posts: 8
Default

I've done whatever there is to do for IB4200s when it comes down to Maintenence and charging procedures, but to stay on topic, i too would like to know "Can we discharge to a lower voltage(other than 0.9)prior to charging the IBs for a race"??, I own a Muchmore CTX-D2 discharger and on the Muchmore website in the tech section, it recommends to discharge the IB4200s to zero volts with the zero volt function before charging them up for racing.

So if anyone out there who has any idea as to can we discharge IB4200s to a much lower voltage then 0.9 before recharging straight away, your help would be much appreciated
BEE18C is offline   Reply With Quote
Old 01-02-2007, 02:07 PM   #21
Tech Regular
 
stuey's Avatar
 
Join Date: Jan 2006
Posts: 393
Trader Rating: 1 (100%+)
Default

Quote:
Originally Posted by BEE18C
I've done whatever there is to do for IB4200s when it comes down to Maintenence and charging procedures, but to stay on topic, i too would like to know "Can we discharge to a lower voltage(other than 0.9)prior to charging the IBs for a race"??, I own a Muchmore CTX-D2 discharger and on the Muchmore website in the tech section, it recommends to discharge the IB4200s to zero volts with the zero volt function before charging them up for racing.

So if anyone out there who has any idea as to can we discharge IB4200s to a much lower voltage then 0.9 before recharging straight away, your help would be much appreciated

yeah iv'e been going down to zero prior to charging for the last 2 years or so on ib 3600 3800 4200 4200shv 4200wc and never had a problem i use a single cell discharger to do this.
stuey is offline   Reply With Quote
Old 01-02-2007, 03:30 PM   #22
Tech Master
 
Tek Nickal's Avatar
 
Join Date: Jan 2004
Location: Earth
Posts: 1,301
Default

Quote:
Originally Posted by TexRacer
Ben,
This is how you do it.
When you get to the track you will wanna discharge at 20-30 amps like you stated.Being the pack will only be 10-25% charged it wont take that long and wont have as much heat as a fully charged pack.
If you race on Saturday I suggest doing this on the night before so you dont have to wait 2 hours before charging each pack.
If you race on Saturday simply get your batteries out while watching T.V. or whatever your doing and start discharging them down to 5.4 per pack.
When you get to the track on Saturday simply take the packs out and place them on the discharge tray.I even take one to two packs with me in the front seat and have them on the tray before I get to the track.That way they have a lil time to cool off from whatever heat the tray may have caused(Slim to none).Charge the pack,run it and then if it's only going to be one weekend before you race again and IF YOU have a spare charger not charging throw 200-300 seconds in it.If your not going to race for 2 weekends then throw 500-700 seconds back into it.
With the HIGH voltage and LOW resistance these packs have they discharge themselves faster than anything.
Some guys will race,discharge their packs down to 5.4,then tray and then put seconds back into them.
I dont think this has any more benefit than just leaving whats in them and adding to it being the packs will be sitting for a week or so.

I hope this helps.

Les
If you discharge the IB cells to 5.4v the night before the race, there may still be enough time for the cells to self discharge, and when you charge it back up it will take less mAh. I've done this and the battery only took about 3600.
Tek Nickal is offline   Reply With Quote
Old 01-02-2007, 05:09 PM   #23
Tech Elite
 
Join Date: Oct 2001
Location: Dallas,Tx
Posts: 3,666
Trader Rating: 70 (100%+)
Send a message via AIM to TexRacer
Default

If the pack discharge's more then how would it take LESS charge?
Im curious.
I have some pretty wicked 4200's and from 8:00pm Friday Night till 11:00am the next day I have NEVER had a pack drop enough to cause problems.

I personally have NEVER had a issue with this.I have done some testing and have never had a 4200shv or wc discharge itself anything noticeable in less than 18 hours.

Les
__________________
*****Look me up on Ebay. I will have alot of stuff going up as 7/7/2016. User name is Dalracer.**** This is going to be a BIG ONE!!!!!!
Just wanted to say Thanks to RcTech for all these years of Great Information.
TexRacer is offline   Reply With Quote
Old 01-02-2007, 08:54 PM   #24
Tech Champion
 
Still Bill's Avatar
 
Join Date: Jan 2004
Location: Reno, NV
Posts: 7,236
Trader Rating: 12 (100%+)
Default

Consider reading and following the www.smc-racing.com instructions.
__________________
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
IB 4200 WC's need to get shifted M O'Regan R/C Items: For Sale/Trade 0 01-12-2008 06:54 AM
Old IB4200, New IB4200 and IB4600 Tral Electric On-Road 0 12-29-2007 05:36 AM
Novak GTB w/ LiPo cutoff and Brood IB 4200 WC's harkonen R/C Items: For Sale/Trade 6 05-12-2007 07:28 PM
Novak Millennium Pro and IB4200 WC's vectra Electric On-Road 8 04-29-2007 05:00 PM
HarrisRC 4200's SHV & WC's v0rtex Australia For Sale/Trade 0 01-01-2007 07:14 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 12:09 PM.


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