Unverified90% confidenceDecision RuleTime unknown
台式机+显示器功耗约150-300W，选择UPS时额定功率(VA)需按 VA×0.6≈实际W 换算，且负载不超过UPS额定功率的70%以保证电池寿命，300W负载应选600VA以上机型
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Unverified台式机+显示器功耗常在200-400W，建议选实际功率≥500W（约800-1000VA）的UPS，预留50%余量以延长电池寿命并支持临时扩容87% similarUnverified选UPS容量应按实际功率W而非VA计算，负载功率不应超过UPS额定W的60-70%，留出余量延长电池寿命并提供合理续航（如500W负载应选标称≥720W/约1000VA机型）87% similarUnverified容量换算：mAh标称按3.7V电芯计算，Wh=mAh×3.7÷1000；20000mAh约74Wh，实际PD输出因电压转换损耗，笔记本可用能量约为标称的85%左右74% similarUnverified关注『被动待机功耗』：老旧或低价机型待机可达3-5W，符合新国标的应＜0.5W；一台待机3W的电视全年待机耗电约26度，选购时查看规格表待机功率参数74% similarUnverifiedUPS的额定功率标注VA和W两个值，实际带载能力以W为准，选型时负载总功率应≤UPS额定W值的60-70%，为电池寿命和瞬时冲击预留余量74% similar
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