Superseded82% confidenceTradeoffTime unknown
充电式暖手宝在零下环境自身锂电池会衰减，-10℃以下续航可缩水30-40%；极寒地区应将暖手宝贴身携带保温，或选一次性暖贴作为备用
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82%
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Long-term
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First Seen
This knowledge claim has been superseded by newer content
锂电池在低温环境（＜0℃）容量衰减明显，寒冷水域救生首选低温性能好的锂锰电池（可工作至-40℃），避免使用普通碱性或锂离子充电电池Sources
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