How to Make Your Own AA to C Battery Adapter

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In 1936, evidence of a 2,000 year old clay-pot battery was discovered near Baghdad, notes allaboutbatteries.com. It's speculated that the large battery was used to electroplate silver. Today, batteries come in a variety of sizes and are used for countless reasons, but as electronic devices got smaller, so did their power sources. Although large C batteries last almost twice as long as AA batteries, they both produce 1.5 volts of energy. Because AA batteries are less expensive and are more readily available, adapting an AA battery to do the work of a C battery makes sense. Adapters are available to buy, but can also be easily made at home.

Things You'll Need

  • ½-inch schedule-40 PVC pipe
  • Hacksaw or PVC cutter
  • Duct or electrical tape
  • Cut ½-inch schedule-40 PVC pipe, using a hacksaw or PVC cutter, to a length slightly less than your AA battery (about 1-7/8 inches).

  • Wrap a small amount of duct or electrical tape around the AA battery to make it fit snugly inside the PVC pipe. Don't make it too tight, because you might want to pull it out later.

  • Insert the tape-covered AA battery into the PVC pipe.

  • Wrap some tape around the outside of the pipe so the final diameter is about 1 inch, matching the size of a C battery (the pipe without tape is about 7/8 inch in diameter).

  • Use the adapted AA as you would a C battery.

Tips & Warnings

  • Do not let the tape cover either end of the AA battery or the ends of the pipe, because the tape can interfere with the battery contacts.

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References

  • Photo Credit electric a battery image by Yuri Bizgaimer from Fotolia.com hack-saw image by Aleksandr Ugorenkov from Fotolia.com adhésif image by Unclesam from Fotolia.com
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