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Battery adaptor for portable CD players

Based on a Labs project | October 2011 | Find it here
Battery adaptor for portable CD players
Portable CD players have anannoying drawback: their current drain is so high that even rechargeable NiCd batteries. let alone dry types, last not much langer than two hours. This is not just expensive (if dry batteries are used). but it also means that the user must always have a spare set of new or fully charged batteries.
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