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Old 01-29-2008, 07:28 PM   #481
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Old 02-04-2008, 09:07 PM   #482
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I started racing in 1989, so I've used a lot of cells -- the one constant is that when a new cell comes out, there is a learning curve until I get a feel for how the cells like to be treated... Now I'm starting over with the Ener-G 4600's...

I just built my first three 4-cell packs of Ener-G 4600's -- tonight I took the first pack, discharged/equalized it on my Novak Smart Tray. One cell went instantly, the other three took a while. Before the tray (with no load), all 4 cells showed similar voltages on a voltmeter -- same thing after removing from the tray.

During the charge process, I monitored the cell temps, and the "flat" cell heated up a bit more than the others, but nothing alarming.

At the time the pack peaked, the cells temped: 155F, 113F, 103F, and 96F (the 155F cell is the one that was "flat" at the start)... The pack peaked at 5.706 -- low, probably a "false" peak...? The pack only took 2894 mAh during the charge (29min:8sec at 6 amps linear charge)...

Questions:
Should I try to "repeak" this pack or...?
Should I go ahead and discharge the pack (even if it didn't charge fully) to put an initial cycle on it and then try the tray/charge process again in a day or so...?

All advice is welcome -- I'm just wanting to learn without learning the hard way...
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Last edited by tfrahm; 02-04-2008 at 09:09 PM. Reason: typo on mAh charge...
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Old 02-04-2008, 09:15 PM   #483
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My guess is that you already have a dead cell.

Leave the pack discharged for a day and check the individual voltages of each cell. I would guess that the flat cell will have very low voltage.

The high temp is an indication it is dead or on the way out

It is the same with IB and EP cells .. some just go bad

I would return the pack. It will no be any good for racing
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Old 02-04-2008, 09:18 PM   #484
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My guess is that you already have a dead cell.
Leave the pack discharged for a day and check the individual voltages of each cell. I would guess that the flat cell will have very low voltage.
The high temp is an indication it is dead or on the way out
It is the same with IB and EP cells .. some just go bad
Nice! Brand new pack...
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Old 02-05-2008, 08:08 AM   #485
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Quote:
Originally Posted by tfrahm View Post
I started racing in 1989, so I've used a lot of cells -- the one constant is that when a new cell comes out, there is a learning curve until I get a feel for how the cells like to be treated... Now I'm starting over with the Ener-G 4600's...

I just built my first three 4-cell packs of Ener-G 4600's -- tonight I took the first pack, discharged/equalized it on my Novak Smart Tray. One cell went instantly, the other three took a while. Before the tray (with no load), all 4 cells showed similar voltages on a voltmeter -- same thing after removing from the tray.

During the charge process, I monitored the cell temps, and the "flat" cell heated up a bit more than the others, but nothing alarming.

At the time the pack peaked, the cells temped: 155F, 113F, 103F, and 96F (the 155F cell is the one that was "flat" at the start)... The pack peaked at 5.706 -- low, probably a "false" peak...? The pack only took 2894 mAh during the charge (29min:8sec at 6 amps linear charge)...

Questions:
Should I try to "repeak" this pack or...?
Should I go ahead and discharge the pack (even if it didn't charge fully) to put an initial cycle on it and then try the tray/charge process again in a day or so...?

All advice is welcome -- I'm just wanting to learn without learning the hard way...
Sounds to me ,if the light went out instantly there was probably a poor connection on the smart tray.

That would also explain the slight heating of the cell relative to the other discharged cells.
imho.
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Old 02-05-2008, 09:24 AM   #486
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Sounds to me ,if the light went out instantly there was probably a poor connection on the smart tray.

That would also explain the slight heating of the cell relative to the other discharged cells.
imho.
I would agree, except that while the pack was still in the tray, I used a voltmeter to monitor the cells, and I measured at the screws that mount the tray tabs to the tray, so I know that I had good continuity through the cell. I hope/wish you are right, but..?

Anyone else with advice or ideas... Surely folks with more experience with these cells will have something to add...? Please note that I have NOT named the company that matched these cells, since I have also emailed them and I want to give them time to respond (nothing from them yet, however, but I figure they may still be sleeping in after the 'Birds?)...
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Old 02-05-2008, 10:24 AM   #487
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Try discharging the pack and monitor cell voltage under load, if the "flat" cell is under 1.00v under load I would consider it a failed cell (if the other cells are much higher.)

Have your dealer replace the battery if they will warranty it.
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Old 03-28-2008, 07:37 PM   #488
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Default Must i do recycle it for best condition(race)?

SMC Energy pro-matched 4600 battery.

Must i do recycle it for best condition(race)?

if it is necessary,PLEASE recycle information!!
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Old 03-28-2008, 08:30 PM   #489
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You need to equalize all the cells in the pack then you should run it once on the track or cycle the pack to get best performance as it always seems like one cycle is needed to get a pack to run at its best.
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Old 03-28-2008, 08:50 PM   #490
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Originally Posted by Danny/SMC View Post
You need to equalize all the cells in the pack then you should run it once on the track or cycle the pack to get best performance as it always seems like one cycle is needed to get a pack to run at its best.
thanks a lot!!
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Old 03-29-2008, 09:30 AM   #491
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the ener-g 4600 is a reputable cell right, no major problems, or am i missing something? im most likely going to have to go with SMC since thats what my lhs carries most, and i would rather get these than IBs
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Old 03-29-2008, 10:44 AM   #492
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You would goto whoever matched the cell.
Most of the matchers are MORE than happy to help. With the high performance cells of today sometimes there is failure.
I remeber 6-8 yrs back when 1.17's were considered HIGH voltage and a 17-20 was considered a LOW resistance.
Guys you have to pay to play. When you taking a cell to it's limits sometimes there is going to be failure.
I have witnessed this in Go Cart, Motocross,Quad Racing, SnoCross, and even Dirt track racing.
When we tweak the motor's to their limits they fail ALOT more than if we dont.
You gotta give a lil to get a lil.
Get ahold of the matcher,give him the info on the pack and he will either replace the cell or sometimes even the WHOLE pack.
Goodluck racing guys.
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Old 03-29-2008, 11:04 AM   #493
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How available are the cells at the moment with matchers, I'm finding hard to get a few packs of these.
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Old 03-29-2008, 11:20 PM   #494
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Quote:
Originally Posted by Ferrarimk13 View Post
the ener-g 4600 is a reputable cell right, no major problems, or am i missing something? im most likely going to have to go with SMC since thats what my lhs carries most, and i would rather get these than IBs
Go with the SMC cells. You will be supporting your local hobby shop (very important) and the SMC cells are as good as any you will find. Danny's customer support is excellent, and his cells are high quality. Use a good quality equalizing tray (Novak Smart Tray, etc.) before every charge, etc. and in general follow his instructions to the letter -- the cells will server you very well!
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Old 03-30-2008, 04:07 PM   #495
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yeah, ill probably go with them, but i just noticed that he doesnt have anymore, but he has Eurotek Ener-G's, and thats the company im using for motor, so i might have to go with those, if i cant get the SMCs
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