23 Years' Battery Customization

Lithium batteries burn quickly when they're cold, really?

Mar 01, 2019   Pageview:534

The temperature has continued to fall recently. When mobile phones are used outdoors in cold weather, the power of the mobile phone "falls out very quickly" and even sometimes the mobile phone will suddenly turn off. Does the lower the temperature, the faster the cell phone lithium battery power consumption? Is that true?

 

To test the problem, first, prepare three different brands of mobile phones, charge them all to 100 %, then unplug the charger, leave the three phone screens in the Changliang state, and start two identical programs on all three phones. Run in the background. Ensure that electricity consumption is the same. At this point, the indoor temperature is 21 degrees Celsius. After 20 minutes, we found that the power of the three mobile phones is still 100 % full.

 

Coming up, getting ready for an outdoor experiment. Since the three mobile phones have been working for a while, in order to ensure the accuracy of the experiment, the three mobile phones are charged with electricity to ensure that the power is in a 100 % state. We then took three phones outdoors, still keeping the three phone screens in Changliang's state, and started two identical programs running in the background on each of the three phones. In order to prevent the mobile phone from becoming damp, three mobile phones were placed in a sealed bag and placed on the snow. At this point, the thermometer shows that the outdoor temperature is 3 degrees Celsius. Similarly, wait 20 minutes to see how the power consumption of the three mobile phones is.

 

This experiment is to be compared to verify the power consumption of the mobile phone in an indoor room temperature situation and an outdoor low temperature situation. The comparison reveals a difference in the power consumption rate of the same phone, the same program, and at different temperatures.

 

So, three mobile phones in the outdoor cold, what changes in the situation of power consumption?

 

After 20 minutes of waiting, it was found that the power of the three mobile phones fell to 99 %, 97 % and 95 %, respectively, in the outdoor snow.

 

Our commonly used mobile phones, IPAD, and the like, this battery is a lithium ion battery of a polymer. One of the characteristics of this battery is that when it is too low in temperature, the activity of lithium ions will be reduced, mainly because the battery is fast and the standby time will be shortened. So if the temperature is lower, say, to a certain degree, say, to zero, or minus 10 degrees, it will even have an extreme situation. The phone will automatically turn off its phone, which is a protective effect on the battery and mobile phone. Different manufacturers set different protection temperatures. Some mobile phones will be turned off at zero, while others will automatically turn off when the temperature is lower.

 

When outdoors, in order to prevent the cell phone from using too much power, or if the mobile phone is turned off, it is recommended that everyone put the mobile phone in the pocket of the clothes and carry it close to the body so that the temperature will not be too low. This is the first and second. Give everyone a suggestion that Especially in the cold weather or in any outdoor time to play as little as possible, do less in the outdoor bow family, this is a good protection for the mobile phone and itself.

 

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