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Old 07-24-2004, 11:35 AM   #1
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Default Why are my batteries so hot?

I havent used these batteries in about a year but they are pretty much still brand new since I havent used them yet. Last night I charged them and it only ran for maybe 30 seconds, maybe due to it being new im not sure. But today I charged them again and it got very hot but still able to touch them with bare hands. These are 3000nimh batteries so I was hoping maybe someone can explain as to why they get so hot. I charged it at 3.5 amps.
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Old 07-24-2004, 05:05 PM   #2
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what did you use for a peek detect? Or did you use a nicad charger on them?
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Old 07-24-2004, 06:29 PM   #3
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Around 120 deg. is good.
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Old 07-24-2004, 06:43 PM   #4
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well, no, around 140 is perfect, 142 is about max, if you want to push the cells, then outdoors in the heat is about 150. But all that doesnt matter because I built myself a cooling box...
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Old 07-24-2004, 11:01 PM   #5
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Im using the Tekin BC112, its old but it works.
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Old 07-24-2004, 11:06 PM   #6
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you have a temp gun, or any way of finding the temp?

did you get it updated, because the old tekin chargers were only for nicd, you can get it updated for a lower Delta Peak...
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Old 07-24-2004, 11:46 PM   #7
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Quote:
Originally posted by =MisFitz= NuKe
you have a temp gun, or any way of finding the temp?

did you get it updated, because the old tekin chargers were only for nicd, you can get it updated for a lower Delta Peak...
I didnt get a update but on their website it does tell you to use a different charge setting for nimh. I charge my rx and tx batteries with no problems. I can use a temp gun but I used to run electric cars so I know its never this hot.
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Old 07-24-2004, 11:48 PM   #8
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k
well, check it with a temp gun, and put the temp gun right on the cell, touching it, and if it is under 140, you are fine.
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Old 07-25-2004, 12:56 AM   #9
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Same idea in here!!.
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Old 07-25-2004, 02:43 AM   #10
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dude check your treshold,peak detect maybe its set to high.
or your cell is damage due to long storage. question when you stored it did you put a minimum amnt of mahr in your batt?
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Old 07-25-2004, 06:18 AM   #11
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So battery heat isn't such a bad thing? I'm not worried about motor heat but have always been concerned with the temp of my batteries. But a little heat is OK then?
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Old 07-25-2004, 07:02 AM   #12
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yeah, stock motors up to 190, batts up to 140...
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