from apple.com Operating temperature: 32° to 95° F (0° to 35° C) Nonoperating temperature: -4° to 113° F (-20° to 45° C) Relative humidity: 5% to 95% noncondensing Maximum operating altitude: 10,000 feet (3000 m) maybe your friend can ask for refund, hehe
零度以下锂电池不是不能充电么? http://batteryuniversity.com/learn/article/charging_at_high_and Many battery users are unaware that consumer-grade lithium-ion batteries cannot be charged below 0°C (32°F). Although the pack appears to be charging normally, plating of metallic lithium can occur on the anode during a subfreezing charge. The plating is permanent and cannot be removed with cycling. Batteries with lithium plating are known to be more vulnerable to failure if exposed to vibration or other stressful conditions. Advanced chargers, such as those made by Cadex, prevent charging Li-ion below freezing.
这个 “Nonoperating temperature: -4° to 113° F” 是啥意思? 是说 -4 F 以下可以operating?
【在 b*********n 的大作中提到】 : from apple.com : Operating temperature: 32° to 95° F (0° to 35° C) : Nonoperating temperature: -4° to 113° F (-20° to 45° C) : Relative humidity: 5% to 95% noncondensing : Maximum operating altitude: 10,000 feet (3000 m) : maybe your friend can ask for refund, hehe : : 朋友回中国已经抱怨过了 : 也遇 : 如果
R*a
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storage temp.
【在 b*******c 的大作中提到】 : 这个 “Nonoperating temperature: -4° to 113° F” 是啥意思? : 是说 -4 F 以下可以operating?