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<blockquote data-quote="hughvane" data-source="post: 1006950" data-attributes="member: 56231">Just a fraction off-topic, but here's a couple of neat tricks I learned at high school, about joining batteries in series.File or grind a bunch of steel (not galv) nails into a few drops of epoxy-resin glue, making sure it's saturated with filings, and then apply the glue to the base or tip of the batteries you wish to connect. Park the bare wire end in the glue while it's still pliable, and then let it all set. You're very unlucky if the wire somehow manages to evade contact with the steel filings. Contact adhesive sometimes works too.Find an empty narrow confectionary tube, push one bared wire end (-) to the bottom, and then stuff about 1/2&quot; (10 mm) of metal wrapping foil in to seat it firmly. Park the batteries in series on top of the foil. Make a small coil, like a spring, of bare wire from the other (+) wire lead and push it on to the terminal of the top battery. Push in some more bunched foil, making sure it's really tight, followed by the plastic cap of the tube. Hey presto, a home battery pack.</blockquote>

[QUOTE="hughvane, post: 1006950, member: 56231"] Just a fraction off-topic, but here's a couple of neat tricks I learned at high school, about joining batteries in series. [size=1]File or grind a bunch of steel (not galv) nails into a few drops of epoxy-resin glue, making sure it's saturated with filings, and then apply the glue to the base or tip of the batteries you wish to connect. Park the bare wire end in the glue while it's still pliable, and then let it all set. You're very unlucky if the wire somehow manages to evade contact with the steel filings. Contact adhesive sometimes works too.[/size] [size=1]Find an empty narrow confectionary tube, push one bared wire end (-) to the bottom, and then stuff about 1/2" (10 mm) of metal wrapping foil in to seat it firmly. Park the batteries in series on top of the foil. Make a small coil, like a spring, of bare wire from the other (+) wire lead and push it on to the terminal of the top battery. Push in some more bunched foil, making sure it's really tight, followed by the plastic cap of the tube. Hey presto, a home battery pack.[/size] [/QUOTE]

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