Unverified80% confidenceFactTime unknown
USB充电式加热饭盒功率通常仅40-60W，加热能力弱，只能保温或加热已经温热的饭菜，无法从冷食完全加热到热食，宣传'随时加热'需理性看待
1
Sources
80%
Confidence
Medium-term (~90 days)
Relevance
-
First Seen
Sources
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Related Claims
Unverified供电功率受限于USB口（约5V/0.5-1A），发热温度上限不高，体感为微温而非明显热感81% similarUnverifiedUSB供电（5V/2A约10W）烤肠机实际难以真正烤熟生肠，多为加热预熟肠或保温用途，追求现烤口感应选12V或AC供电78% similarUnverifiedUSB供电（5V/2A）电热杯本质是恒温保温杯，只能维持40-60℃，不具备加热能力；真正能烧开水的必须是220V直插或独立底座供电77% similarUnverified便携性与温控精度存在权衡：USB供电的便携款（充电宝供电）功率通常＜10W，升温慢且难恒温，适合外出应急；家用220V插电款功率30-60W，控温更稳但不便携77% similar
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