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Old 06-25-2006, 09:44 AM   #1
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Default Atlas Battery Jig/Charging Heatsink

Not sure how necessary this is...but itís cool. Has anyone used one? It has some nice things like cutouts for solder tabs for 4 cell and 6 cell. And its aluminum...no melting plastic here

http://www.precisionrc.com/nv/car/pr...oduct_id=31776
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Old 06-25-2006, 11:25 AM   #2
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I also saw that today on PrecisionRc, does look interesting.
Problem is its not always beneficial to force cool cells while charging, like most things they have an optimum temperature. This looks like it may cool the cells too much.
The only annoying thing with it is that there's nowhere for you to place a thermal sensor while charging.

Has anybody got one? How much of a difference to temperature does it make?
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Old 06-25-2006, 01:53 PM   #3
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It doesn't cold cells. It actually helps cells to "get rid" of heat. Fans are to cool aluminum tray.

It basically same idea as Much More's Battery Heatshink for Charge & Discharge Blue

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Old 06-25-2006, 03:16 PM   #4
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Quote:
Originally Posted by nnick
It doesn't cold cells. It actually helps cells to "get rid" of heat. Fans are to cool aluminum tray.
Nick
I thought getting rid of heat was cooling
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Old 06-25-2006, 08:11 PM   #5
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Heating and cooling are both just transfer of BTU's. With the aluminum in contact with the cells, it greater facilitates said transfer of BTU's. The fans help the heatsink to transfer the BTU's from the cells at a more rapid pace. So yes, it cools the cells by allowing them to transfer BTU's more efficiently. However, this is only on the outer surface of the cells. It does little for the core temperature. Even though this can help them to cool externally, you can still overcharge and vent your cells. The only instances in which I would use such a device would be for pack assembly and discharging.

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Old 06-25-2006, 10:44 PM   #6
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I think this unit will come standard on Eagles new CDC 7.0 charger or in the US it's the Integy's 16x908 climate controlled charger. It is suppose to have a place for the thermal sensor.
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Old 06-25-2006, 11:44 PM   #7
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Quote:
Originally Posted by X2
I thought getting rid of heat was cooling
Yes, it is the same but choice of words

I believe it's diferrent to send cool air to cool the batteries than helping them "get rid" of temperature.

I'm afraid I can't explain it I can only say that after using Much More's my batteries are much colder after charging (actually reaching 45-46) when ambient temp is 38, with the help of this product. Previously I had temp cut off's all the time leaving battery half charged

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Old 06-26-2006, 09:32 AM   #8
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here it is connected to the new charger:

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Old 06-26-2006, 10:04 AM   #9
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I'm not going to comment on how effective I think any of these are but so FYI, the one in the first post and the one rc-zombie posted are different. One is the Atlas Racing jig, the second is the Eagle Racing version. Yes, they are basically the same product...but, the Eagle version is 20 bucks cheaper
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Old 06-26-2006, 11:11 AM   #10
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Quote:
Originally Posted by rc-zombies
here it is connected to the new charger:

AHHHHHHHHHHHHHHHHHHHHH Frankenstein............
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Old 06-26-2006, 11:16 AM   #11
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Quote:
Originally Posted by rc-zombies
here it is connected to the new charger:

Seems pointless even having temperature sensors on that too me. You get the temperature of the cooled outside of the cell and it tells you nothing about what the cells actually doing inside.
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