| 摘要 |
PROBLEM TO BE SOLVED: To provide a battery pack with a built-in manual generator having a subminiature shape for rotating it to generate by pulling a thread wound on a drum, in a battery pack with a built-in manual generator for supplying power to a portable telephone, a portable personal computer and a potable radio at a place with without a power source. SOLUTION: This battery pack with a built-in manual generator comprises a generating part 3 for generating by rotating a drum, a top gear and a generator teeth-engaged with the top gear by pulling a thread wound on the drum, a power control circuit part 2 for supplying a current to a battery, and a main body case 12 for containing them.
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