[KongchangAI]
Unverified75% confidenceFactTime unknown

电池供电指针钟通常一节AA电池可用1年以上,扫秒机芯耗电略高约半年;数字LED钟需USB持续供电或频繁换电池,选购数字钟应确认电源方式与摆放位置是否有插座

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