A really magic Harry Potter wand for Lumos and Reveal Your Secrets charms

Step 7 Attach the wires to the battery

It is quite tricky to solder straight onto a battery terminal, and quite easy to damage the battery when doing so, but it is ok (for this application) to press the wires against the battery. So coil up a bit of the bared end of the wire and place over the bare battery terminal and hold in place firmly with sticky tape pulled hard over the top of it.

Comments

[AF-Geek]

Small, but wide, rubber/elastic bands work well to hold wires to batteries (or regular size, looped around several times). They keep pressure on the connection, so you don't have to worry about the tape pulling loose.

[KaptinScarlet]

Brilliant idea, wish I'd thought of that.