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This Instructable will show you how to use a DC adapter instead of batteries. This will not only reduce battery expense and e-waste but also provide consistent performance. ...
Based on the tables, electricity gives you more bang for your buck than alkaline batteries. AA batteries cost $330 per kWh and electricity costs $0.10 per kWh which ...
"Battery" Piece Bamboo stake (available at garden centers) DC adapter Aluminum foil 2 pieces of bare copper wire Markers to label the polarity Conductor Piece Bamboo stake (quantity ...
The bamboo stakes in my garden perfectly fits AA battery holders. For the project, you will need to make one "battery" piece and at least one conductor pieces. ...
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