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Old 05-20-2006, 03:10 AM   #1
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Default Disassembling boat pack

Hi,

I couldn't find a more appropriate section, but here goes:

I just got a boat pack from my friend, with all the cells soldered in a line (like one cell ontop of another). How do I take this appart? I want to make it fit in my car....

TIA
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Old 05-20-2006, 08:36 AM   #2
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You should be able to unsolder them all then lay them side by side soldering batterybars pos to neg. I doubt their welded sounds like you got alot of cells.

If you are talking about making a stick pack they sell kits at some local Hobbyshops. I don't like making those.
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Old 05-20-2006, 08:02 PM   #3
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Just in case if you are looking for a good article on assembly of side to side cells you can pick up the Summer 2006 issue of Radio Controlled Boat Modeller on newstands now.
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Old 05-20-2006, 08:26 PM   #4
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remove the shrink wrap and pull the battery apart. the battery is put together with a tab that is spot welded to the and put end to end. you can pull real hard usually and the tabs will come off. or twist them with a pair of pliers. then sand the end smooth and reassemble as a side to side pack.
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Old 05-21-2006, 02:21 AM   #5
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Quote:
Originally Posted by baih
remove the shrink wrap and pull the battery apart. the battery is put together with a tab that is spot welded to the and put end to end. you can pull real hard usually and the tabs will come off. or twist them with a pair of pliers. then sand the end smooth and reassemble as a side to side pack.
Its not spot welded, that is the problem! The pack is all the cells ontop of each other, with solder in between... when laying on its side, it looks like this:
[cell][cell][cell][cell]

I really don't have any idea of how to get the solder to ease between two cells... I guess I'll just call my friend, he might know.
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Old 05-21-2006, 02:51 AM   #6
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I don't know how you put solder between each cell like that. Pull it apart and see if it actually has anything between the cells, some don't.
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Old 05-21-2006, 03:44 AM   #7
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They are assembled by tinning the cell ends andputting iron (very thin tip) between cells, and then quickly pullout iron letting cells touch while solder is still liquid.

Mate, I think there gonna be a BEEEEOtch to seperate.

You will probably need to get a tip for your iron and grind it thin so it can be eased between the cells.

Might be easier to ask the boat guys how they disassemble them.

I think there may also be a couple of guys in the mini thread that do their stick packs this way, maybe they can help.
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Old 05-21-2006, 04:52 AM   #8
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Cells for a stick pack are soldered together with a hammerhead tip. The tip looks like a T. Try gently bending at the joint.
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Old 05-21-2006, 07:31 AM   #9
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i have broken those type apart before. it is possible but there is also the chance of damaging a cell. the only way ie to break it apart. your risk !!
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