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09-22-2010, 09:28 PM
| #1 |
| Quarry Creeper Join Date: Jul 2010 Location: Gila & Cibola
Posts: 363
|  soldering on batteries
i took apart an onyx nicd 7.2v stick pack to see if i could make a saddle pack. My question is, can i solder my new wire directly onto the cells? The existing wire is sodered to a small piece of tin or aluminum that is welded onto the cell and the existing solder does'nt want to let go of the wire with heat. 'preciate any help, thanks |
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09-22-2010, 09:35 PM
| #2 |
| cherry bomb   Join Date: Jul 2006 Location: Nanaimo, BC, Canada
Posts: 1,598
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Yes. You can solder right to the cell. Might have to scuff the surface a bit so the solder holds better. Ive run into that tin thing you speak of once. I just tore it off of the cell. Good luck with your saddle pack. Don't heat them to much though. If yo fail at first wait a bit before trying again. You can ruin the cells if they get hot enough. |
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09-22-2010, 09:57 PM
| #3 |
| Quarry Creeper Join Date: Jul 2010 Location: Gila & Cibola
Posts: 363
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Thanks. i have a good iron. Why do you think the original solder won't melt? Maybe i'm just not giving it enough time for fear of overheating the cell. |
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09-23-2010, 01:29 AM
| #4 |
| I wanna be Dave  Join Date: Dec 2009 Location: San Francisco
Posts: 2,236
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Is your iron tinned up nice? As I solder more and more (and get better at it) I am realizing that having a bit of extra solder on the tip really helps to get the heat transferred quickly, seems to help when trying to undo nasty blobs of old solder.
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09-23-2010, 07:24 AM
| #5 |
| cherry bomb Join Date: Jul 2006 Location: Nanaimo, BC, Canada
Posts: 1,598
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That tin strip is spot welded to the cell. Good luck melting it with an iron. Thats why I tore it off.
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09-24-2010, 07:56 AM
| #6 |
| Quarry Creeper Join Date: Jul 2010 Location: Gila & Cibola
Posts: 363
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No, i was trying to un-solder the wire that was on the tin strip. i did peel off all of the strips and some even left little burrs where the spot welds were that i think will hold new solder nicely. When peeling the tin off with needlenose, i only made one ARC FLASH!! |
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09-25-2010, 12:03 AM
| #7 |
| Rock Stacker Join Date: Aug 2010 Location: nanoose bay, bc, canada
Posts: 94
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as long as your iron is 20w or more and you let it get fully hot then it should be fine for soldering wires or tabs to the cells. and yes you dont want to get them to hot  |
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09-25-2010, 11:18 AM
| #8 |
| Quarry Creeper Join Date: Nov 2006 Location: out in boonies!!
Posts: 349
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better off pull strip off and scoff battery end than solder wire on. as using too much heat can destroy battery....
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09-27-2010, 06:19 AM
| #9 | |
| Rock Stacker Join Date: Sep 2010 Location: Calahoo, Alberta
Posts: 91
| Quote:
Don't even try to solder batteries without at least a 60w iron with a big clean tip. 80w+ is preferable. Edit: Also, soldering guns are not the same as soldering irons. You can't safely make packs with a gun, they don't have the mass to transfer heat fast enough. Last edited by runout_mick; 09-27-2010 at 06:22 AM. | |
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