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"Homemade" Emergency Battery Adaptors/spacers - or what to do with a battery that won't fit?

Step 2Now we know lenghts...how to make 'Easy' diameter changes

Now we know lenghts...how to make \
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Diameter modifications are easy, tape cells together then wrap cheap adhesive foam sheets (.49c) from Hobby or Crafts store around smaller batteries till diameter in chart is reached.

See 4x 'C' cells for a 3x D batteries pack below..

3xAA for D cells can be made from household materials.

hum...4xC a little long for the light below...

NOW onto more mods for lengths...
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Author:erckgillis
So what ideas would you like to try?