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Old 01-09-2004, 08:20 PM   #1
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Default New Novak charger and Team Orion 5 cell pack. False peak?

Hey all,

I just got a new Novak Millenium Pro and am using it to charge a brand new Team Orion 5 cell, 6 volt, 1200mAh battery pack for my Micro Rs4.

I plugged it in and chose the NiMh 5 cell Receiver pack mode (charges using their NiMh2 mode - 5 cell at 1.0 amp) and chose start. It charged for about 75 seconds and then shut off. I ran plugged the pack into the car and it barely made the ESC beep. Put it back on the charger and charged again (same mode) and it charged for about 3 minutes and then shut off. Put it in the car and the runtime was about 30 seconds. Did it a third time and it charged for a while longer and the run time was a bit longer.

Am I doing something wrong here? Should I continue to do this over and over until it takes a full charge (making sure to let the batteries cool and store them with some charge on them if I need to take a break for a while)?

I noticed that there is no way on the Novak to determine what the peak threshold is for the NiMh settings. I assume this is intended.

Am I using the wrong mode?

Thanks in advance.

Chris in Atlanta
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Old 01-09-2004, 11:21 PM   #2
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Default arent

those 6 cell packs , like the mini t packs?
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Old 01-09-2004, 11:37 PM   #3
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They are 5 cell packs - http://www.teamorion.com/products/ba...#Micro%20Packs from Team Orion. They also make a 6 cell (7.2 Volt) version, but these are 5 cells.

After about 4 or 5 runs through as stated in my original post - it charged for 514 seconds (about 9 minutes). Read 7.52 volts (is this right? the pack is only a 6.0 pack - 5 cell - 1.2 volt each cell?), 143 mAh and 3831 J (is this jewels?).

The 143 mAh seems pretty low
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Old 01-09-2004, 11:45 PM   #4
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Default hhmmm

i dont hve a millenium, so as for dif modes i dont know. but is there a reg nimh mode w/ adj. amp setting(not a rec pack mode) i charge my mni t packs at 1.2a w/ a cutoff set at 03. and even on turbo flex they take a good 30 -40 min. should be nice and warm when they come off. sorry couldnt be much help but i dont know the novaks very well
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Old 01-10-2004, 12:36 AM   #5
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Did you use linear charge mode?
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Old 01-10-2004, 01:04 AM   #6
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Yes. The NiMh mode defaults to linear. I let the last charge peak with about the same results as before (about 9 minutes charge time - see above) and then restarted the charge. It ran another 2 or 3 minutes with another 125 mAh and then stopped again... I am starting to worry.
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Old 01-10-2004, 06:42 AM   #7
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With those little cells it happens a lot until they are trained !!

Discharge them, using your car or bulbs and them put on Millenium not using NiMH mode.
Put on linear charge, 5 cells, with a peak detection of 9mV per cell.
Watch close the temp.
If it continues to stop, plug a digital multimeter on your cells and see what happens to the voltage on your battery. You could easely see the voltage drop.
Never mind, discharge them and monitor with a voltimeter with a higher peak detection with always an eye on temp cells.
Normally your charger must put around 1250 - 1300 mA on your completely discharged bat.
Hpo this helps.
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Old 01-10-2004, 07:09 AM   #8
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I charged my Promatch Mini-T 6 cell packs on my Millenium Pro with the following settings.

Nicad linear charge
6 cells
2 amp charge
4mv per cell drop back

Packs charged fine in about 1800 seconds and were barely warm. I don't look at the Mah's because it is dependant on the amount of charge in the pack when you start. After the 5 minute race they had about 10 minutes left at a 2 amp discharge with a 5.4v per pack cut off. I'm going to try and kickup the drop back a bit.

Just be sure to set the charger for 5 cells so it doesn't get confused.
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Old 01-11-2004, 11:34 AM   #9
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I changed the charger mode to the regular nimh2 mode and set it to one amp. I did not have the guts to set it to a nicad mode - sorry

After about 10 times through the charger, it is now charging for 31 minutes and finishes with 7.51 V, 521 mAh, 1877 seconds, 13833 j. This is after I run the car down to a little faster than crawling speed. It seems to be getting better somewhat.

Should I just keep going with it?

Chris
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Old 01-11-2004, 12:30 PM   #10
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not really familiar with the pro...but i used to have a millenium before and in nicd mode, it automatically changes from nimh or nicd! theres no need to worry about charging your cell as nicd. the nimh on the charger was just to charger reciver packs at the highest 1 amp.

try charging with the nicd mode. see if it helps!
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