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Old 03-21-2003, 12:30 AM   #1
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Unhappy Batteries dont fit

Hi, i have just got my batteries made today for my TC3 and when i put them in they dont fit. They are in saddle pack and have bannana plugs. The wires of the saddle pack poke out to much as does the tube for the plug. I was wondering how every one makes them fit and which configuration did you use.

Thanks alot for the help
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Old 03-21-2003, 01:07 AM   #2
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mmmmmk, put battery bars coming off the pack, bend em, and put the tubes ontop... or dremel out slots in the chassis... but i would do the batts bars thing...

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Old 03-21-2003, 01:53 AM   #3
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I just resoldered the tubes and i moved them up a bit and that helped. Thanks alot
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Old 03-21-2003, 04:16 AM   #4
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Please note, if you got the alu battery bar, then ensure that there's plenty of room between the battery bar and the plugs. Just to avoid dead shortning.
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Old 03-21-2003, 04:46 AM   #5
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Is there anything i can put on the battery bar to stop this? I give up on the cells to, i just cant solder them well enough
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Old 03-21-2003, 05:36 AM   #6
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Johnny-- Make sure you have a HOT iron (40 watt min. 60-80 preferred and 800+ deg.) and a wide (1/4" or 6mm min.) chisel til. Hold the Iron on the end to be soldered and touch the solder about 2mm from the tip, f it doesn't melt w/o just from touching the heated cell then the iron is to cold. I also prefer to use very thin 60/40 solder. Thinner solder melts at a lower temp. Run solder onto teh cell until you have a nice pool of molten solder the bead should begin to lay down and that s when you know it is gonna stick, also you can scrape the ends of the cells beforehand to give the solder something to "bite" into. Once you have pretinned all of the ends of the cells allow them to cool for 15-30 min.

Now place your cells into a good battery jig. hold the batterybar on the cells to be soldered and place the tip of the iron on the bar above the "bead" of solder, once enough heat has been transferred the bar will "sink" into the solder. remove the tip ad allow the soldr to cool naturally, donot blow on it.... These are the steps to properly solder your new cells.....
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Old 03-21-2003, 05:38 AM   #7
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BTW: once I have completed the pack I take it out of the jig ad hold it about 12"-24" above the tabe and drop it, if the joints hold up then they will last in racing conditions......
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Old 03-21-2003, 08:07 AM   #8
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yeah a battery building jig helps alot, the deans in particular can make anyone look like a soldering pro.
also a good low resistance solder joint will not provide much mechanical strength, thats why everyone glues there cells together.
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Old 03-21-2003, 10:35 AM   #9
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Wouldn't dropping the cells 2 foot onto a hard surface risk damaging them? Not worth doing just to test a joint in my opinion.
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Old 03-21-2003, 12:59 PM   #10
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Quote:
Wouldn't dropping the cells 2 foot onto a hard surface risk damaging them? Not worth doing just to test a joint in my opinion.
I agree....what i do after im done soldering is i take a flat blade screwdriver and stick it under the bar on each side, then lift up a little. if the bar doesnt flex at the solder joint its strong enough for me. dont drop your packs!
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Old 03-21-2003, 03:07 PM   #11
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Quote:
Originally posted by sosidge
Wouldn't dropping the cells 2 foot onto a hard surface risk damaging them? Not worth doing just to test a joint in my opinion.
?? Hard surface yes carpet.?? maybe

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Old 03-21-2003, 03:32 PM   #12
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Well, on occasion they explode like grenades...... What do you think they are made of glass??? crystal??? for criing out loud they handle the abuse of being thrown into a wall at 40 mph!!!! if you drop them onto a padded surface then what kind of durability test are you preforming..... maybe just drop them from 3 inches onto a feather pillow......LOL
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Old 03-21-2003, 03:49 PM   #13
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It's not the cell that hits the wall - it's the car. The cells will feel very little direct impact (unless they fly out of the side).
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Old 03-21-2003, 03:50 PM   #14
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Quote:
Originally posted by IMPACTPLAYR
Well, on occasion they explode like grenades...... What do you think they are made of glass??? crystal???


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Old 03-21-2003, 06:16 PM   #15
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Thanks alot for the help. What type of glue do these people mainly use? I've heard they sometimes use Shoe-Goo or something but im not sure if they even sell that in australia. And thats one of the other problems, a battery jig. Since i dont have one of those it makes life very difficult. I think im just gonna take them to the LHS and see if they can salvage them.
Thanks alot for all the help

John
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