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Step 7:


To begin with, we will need battery holders and clips. The standard battery that we will be working with is AA and the standard size battery holders will hold two, three and four AA batteries.

The way the AA battery holders work is that they connect the batteries in series. When connected in series, the battery voltage adds up. So, two 1.5V batteries in series adds up to a 3V power supply. It goes to follow that three batteries add up to a 4.5V power supply and four batteries add up to a 6V power supply.

On occasion, we will also use 9V batteries and connectors.
Hi I have an invention and I'm looking for someone to build a prototype. I would really appreciate it if you could contact me. Please email me at ayah1314@gmail.com in the subject line please put prototype thank you.
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Bio: My name is Randy and I founded the Instructables Design Studio. I'm also the author of the books 'Simple Bots,' and '62 Projects to ... More »
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