Unverified75% confidenceTradeoffTime unknown
续航与体积互相矛盾：便携小机型电池普遍仅支持8-15小时连续播放，无法覆盖整夜+白天午睡，长途多日出行仍需依赖充电，纯靠电池的机型不适合无电源的多日户外场景
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75%
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Long-term
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