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>Quite correct.  A higher wattage iron, used correctly, will allow heating
>the battery terminals more quickly, thus transfering less heat to the
>internal components of the battery, and miminizing the chance of damage.

Note that, contrary to what some other people have said, you DO need to
heat the terminal to soldering temperature.

In a good soldered joint, the wire and the terminal form a metallic alloy
at the interface between them.  This takes heat.  The solder is actually
just a heat transfer medium, to get the heat into the mechanical joint and
help with the alloying process.

(My source on this is my father, from his early days at Boeing, when they
brought in some of the REAL experts to teach soldering.  Might have been
NASA, might have been someone else.)

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