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Old 12-27-2004, 02:07 AM   #1
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Default Eagle CDC questions

hi guys, i have a eagle CDC V6B, and i was wondering what the cutoff rate for the discharge function was?
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Old 12-27-2004, 02:36 AM   #2
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0.8V
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Old 12-27-2004, 02:39 AM   #3
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this should suffice for GP3300s or is that a little to low. also, do you reccomend that i cycle my packs when i first get them? if so at what amp rating and what discgarge rating?

thanks!
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Old 12-27-2004, 02:48 AM   #4
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I use a CDC and set the discharge to 1 cell higher in the pack...(7 cells for a 6 cell pack)

That way my SP tray gets some work to do in equalising the cells...

Going to 0.9-0.8v percell makes the tray redundant...

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Old 12-27-2004, 07:55 AM   #5
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cycling a new pack is unnecessary. simply drive it on the car.
There is not much difference between 0.8V cut-off and 0.9V. The difference is about 1/2 seconds only @20A.
usually even if it goes to 0.8V with the CDC, i can still use any tray and it'll still light up.
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Old 12-27-2004, 08:55 AM   #6
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Quote:
Originally posted by lee82gx
cycling a new pack is unnecessary. simply drive it on the car.
There is not much difference between 0.8V cut-off and 0.9V. The difference is about 1/2 seconds only @20A.
usually even if it goes to 0.8V with the CDC, i can still use any tray and it'll still light up.

That may work for you, but my tray cuts at 0.9 so discharging to 0.8 kills the equalisation process... the lighting up is purely where the cells have "come back up" the voltage recovers slightly after the discharge has completed, but the cells are not then equalised..



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Old 12-27-2004, 02:30 PM   #7
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Quote:
Originally posted by Galifrey
I use a CDC and set the discharge to 1 cell higher in the pack...(7 cells for a 6 cell pack)

That way my SP tray gets some work to do in equalising the cells...

Going to 0.9-0.8v percell makes the tray redundant...

I wont recommend this, because the CDC uses the cell number to calculate a safe voltage range to work within... Thus you're fooling around with the safety circuits... You're talking a risk with this.

It sounds like you are using a tray with a high drain, correct? Which one are you using?

I'm discharging 6 cells pack at 20 amps, and my equalizer do a good job afterwards. My equalizer discharges at one amp.
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Old 12-27-2004, 05:10 PM   #8
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Hi Cole

I am using the eagle racing sp equaliser/conditioner...

The UK distributor who is "very" well thought of in the UK car racing field told me to do this as thats what all the team drivers do, including his son...

Remember I am only discharging at the increased setting and the voltage is set at 0.8v per cell on discharge...

Therefore the CDC cuts at 7x0.8v/6=0.93v volt per cell... the SP tray cuts that to 0.9v per cell for equalisation and 0.6v per cell for conditioning...

As long as I dont hit charge on that setting I shouldnt have an issue..

Gah, now I've cursed myself...

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