Unverified85% confidenceCautionTime unknown
不建议为冬季高海拔活动买内置锂电不可换的头灯，低温下锂电容量骤降且无法更换会导致中途失明，应选可换电池并将电池贴身保暖
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Unverified冬季高海拔或极寒穿越不建议选纯内置锂电头灯，低温下锂电容量骤降且无法更换，应选可换电池款或电池仓可贴身保温的设计94% similarUnverified冬季高海拔/极寒环境不建议选纯内置锂电头灯，低温下续航可能腰斩且无法更换电池94% similarUnverified多日无补给的长线徒步或冬季登山不建议选纯内置锂电头灯，无法现场充电且低温掉电快，应选可换电池型号91% similarUnverified冬季或高海拔低温环境不建议依赖内置锂电头灯：低温下锂电续航衰减明显（可能腰斩），应选支持外接电源或可换碱性/锂电池款90% similarUnverified冬季或高海拔露营不建议依赖内置锂电池灯串，低温会使锂电池容量骤降甚至无法充电，应选可换干电池款或配备移动电源保温措施90% similar
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