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10-12-2006, 11:26 AM
| #1 |
| Quarry Creeper Join Date: Dec 2005 Location: los alamitos
Posts: 205
|  battery question
through out my 15 years of RCing, i've never built a battery pack. i finally decided to build my own, since my latest vehicle has weird needs. i actually had already bought a stick pack, but it didn't fit, just barely. i bought the DEANS battery bars and solder, i cut the battery all apart, but i can not get any sort of solder i have to stick to the batteries themselves. what's the deal? specific type of solder needed? my gun is decent, never had any issues with it before...
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10-12-2006, 11:36 AM
| #2 |
| I wanna be Dave Join Date: Mar 2006 Location: One Legend.
Posts: 2,134
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Did you rough up the battery where you want to solder?
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10-12-2006, 03:53 PM
| #3 |
| 1*   Join Date: Dec 2005 Location: Ozarks
Posts: 326
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I don't claim to be an expert, but I have built 4 or 5 packs. The battery contacts seem to have some sort of varnish or shellac over them. You need to use some sandpaper or a dremel sanding drum and go over the contacts to remove this stuff. Solder doesn't adhere to it very well. I think I've also read posts about people using flux to help the solder stick.
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10-12-2006, 05:39 PM
| #4 |
| Rock Crawler Join Date: Mar 2006 Location: Auburn, WA
Posts: 983
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These guys are 100% correct. You need to lightly scuff up the end of the pack where you are going to solder. You need a lot of heat for the shortest time possible, as you don't want the heat to penetrate any deeper into the cell than is absolutely necessary. Just use a good rosin core solder designed for electronics and tin the end of the cell before trying to put the batter bar on.
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