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Phil writes - "Over the past few years, I've built up a few battery packs for myself and for other people. Most of them worked fine - in fact, one of the first packs I built over five years ago is still in service, working fine in a torch in the bottom of my cupboard. The big problem with soldering to batteries is that you tend to damage the plastic separator, and the cell seals. This - as you might guess - is not a Good Thing. In some cases, solder can splatter over the cell's pressure relief vent. There's a reason the datasheets make a big fuss about the vent - in an overpressure situation, the vent is used to release the excess pressure in the cell. Needless to say, blocking the vent with solder is never a good plan, unless you're trying to get a Darwin Award, or you happen to enjoy watching your battery pack undergoing rapid, uncontrolled self-disassembly." Link.
Poor man's battery tab welder
Phil writes - "Over the past few years, I've built up a few battery packs for myself and for other people. Most of them worked fine - in fact, one of the first packs I built over five years ago is still in service, working fine in a torch in the bottom of my cupboard. The big problem with soldering to batteries is that you tend to damage the plastic separator, and the cell seals. This - as you might guess - is not a Good Thing. In some cases, solder can splatter over the cell's pressure relief vent. There's a reason the datasheets make a big fuss about the vent - in an overpressure situation, the vent is used to release the excess pressure in the cell. Needless to say, blocking the vent with solder is never a good plan, unless you're trying to get a Darwin Award, or you happen to enjoy watching your battery pack undergoing rapid, uncontrolled self-disassembly." Link.
Posted by Phillip Torrone |
Jan 30, 2006 04:19 PM
DIY Projects, Electronics |
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this has been on hackaday or make before
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i didn't see it when i searched our archives here on make.
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