地震や台風などで単1電池が不足した場合、単3電池とダンボールなどを使って単1電池を作ることも出来ます。お店がどこも売り切れで入手できない場合は、応急的に作ることも考えてみてください。
D cell battery can be made by using AA cell battery and the corrugated cardboard, etc. when D cell battery is insufficient because of the earthquake and the typhoon, etc.The shop must think making the emergency when it is also unavailable because of sold out where.
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