its an cheap and easy instructable its  fast to make  it will shows how to make this battery tester .
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Step 1: Materials and tools

you will need:
AA battery
aluminium foil
hot glue gun

Step 2: Print!

Picture of print!
first you have to print out this drawing to start to make this
fold the blue sides upward.
cut the diagonal lines and fold the tabs (that you have got while you cut the diagonal lines)
to each other. you have to got the shape on the second picture.

Step 3: Connectors

now you need the aluminium foil. cut down 2×10cm long pieces.then fold them to 1×1 cm piecies.
then stick them to the and of the shape that you got in the second step.
ironsmiter3 years ago
looks fun, but why not just place the battery on the table, then touch the probes directly to the battery terminals?
Gernerakos (author)  ironsmiter3 years ago
I know it has no sense but i was boring