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Old 10-10-2007, 11:47 AM   #16
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cooling the cells with a fan will only skew my temperature readings, but i will not necessarily hurt the cells. i know that it might not be very effective since "it's the internal temperature that counts", but the way i think is that any kind of cooling will only help (except of course putting them in the refrigerator).
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Old 10-10-2007, 01:55 PM   #17
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When charging, I can't imagine that running a fan on a pack could create false peaks, especially if the airflow is consistent. Relatively speaking, running a fan on a pack won't do much cooling compared to the heat that is generated inside the cell during a charge.
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Old 10-10-2007, 02:01 PM   #18
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What about things like the Fan Stand from Much More that pull heat off the cells, rather than blow cool air on them? And then, like someone else asked, they have the battery heatsink system that tries to cool the entire cell. Are both of those junk as well?
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Old 10-10-2007, 02:01 PM   #19
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Well forget the science of it all, consider this. My mates and I were using Intellects from the same batch. They insisted on charging on a fan, I didnt. They all had problems with venting, I never did.
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Old 10-10-2007, 02:42 PM   #20
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when you charge you 4200mah batt without a fan do they peak at 4200mah or do they peak before like 3900mah because i find with mine if i do not use a fan they peak before o yeah i live in the carribbean where it is hot 32deg c.
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Old 10-10-2007, 03:21 PM   #21
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Yeah peaking at 3900 is not unusual, the reason they are peaking at 4200 on a fan and not 3900 is cos they are being over charged and could lead to venting. I have heard ideas that for punch you want to stop the cells charging before they peak. That way the core of the cell will not get as hot and the IR will be lower. Not tried it myself, but an interesting idea from someone who knows a lot about cells
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Old 10-10-2007, 03:36 PM   #22
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what about chargers they pay a very important role i am using the ice what do you use.
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Old 10-10-2007, 03:43 PM   #23
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Well its got an ironic name really considering what we are talking about, but I use a Robitronic Overloader. I dont think it is meaning it overloads cells thou
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Old 10-10-2007, 04:47 PM   #24
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and it's ironic that i use an ICE considering i once put my pack into a freezer!
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Old 10-10-2007, 04:49 PM   #25
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And I once saw someone with a 'metal flask' discharge tray. Was also followed by exploding cells
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Old 10-10-2007, 05:02 PM   #26
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yes i agree with what everyone is saying.sometimes keeping them at room temp is difficult exspecially when traveling in the winter.
im guilty at that....

to be honest with you i read that charging at 5 apms.then someone saying you should charge ib a 6.

i was told by a sponsored driver that charging them at 6 amps and discharging at say 30-35 amps.will give the battery good performance.

but he also said that by charging at 5 amps and discharging at 25 amps that you will loose a little performance but the battery will last alot longer.

the decision is up to you.

i charge my stuff at 6 and discharge at 30.

also on you ice charger get the temp cut-off switch.you want youre charger to stop when cells reach 120 degrees.

i use older turbo 30 and 35 charger...so i use a temp gun.when they get to around or a teed bit over i stop the charge.

hope this helps.

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Old 10-10-2007, 05:29 PM   #27
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i charge my ib @ 5 amps and discharge at 30 amps trying to let them last lng because i am running at club level i believe i can charge at 6 amps
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