I believe that many friends in different places have the habit of calling porridge, and often even talk about the automatic shutdown of the phone, but there are rumors on the Internet that when the phone is weak, the radiation is 1000 times when the battery is fully charged. Is it terrible? But is this rumor true?

Everyone knows that mobile phones transmit and receive voice and data information through electromagnetic waves. Information is transmitted between different mobile phones through the base station. The signal coverage of each base station is limited, so the signal strength will be different in different areas. Different. When the signal strength is weak, the mobile phone will increase the radiation intensity to accept more signals. Therefore, the radiation intensity of the mobile phone is related to the signal strength, and not related to the power.
Since the radiation of the mobile phone is related to the signal, if the signal is weak, will the radiation intensity of the mobile phone reach 1000 times of the normal time? This is possible.

Taking the GSM mobile phone as an example, when operating at 1800MHz, when the signal is weak, its maximum peak power can reach 1W, and in the state of full signal, the minimum power is 1mW, the difference is exactly 1000 times, so this statement is It has some basis.
Although the radiation can be up to 1000 times different, you should not worry too much. After all, it is only the ideal value to compare with the highest value and the lowest value. In actual use, it is difficult to reach this peak. Even if the radiation reaches the highest value, it is only 1W, or within the national standard, it has little effect on health.

Although cell phone radiation has little impact on health, it is not without harm. For the sake of insurance, it is recommended that you try not to make a phone call in a weak place for a long time. When you make a call, try to use headphones to minimize the risk of radiation from your phone.

Will cell phone radiation cause cancer?

There have been rumors on the Internet that cell phone radiation can induce cancer. The source of this rumor is actually based on a news article, "The World Health Organization recognizes that cell phone radiation may cause cancer."

Although this news is true, it is only the result of some people taking it out of context. In fact, this rumor misses a lot of important information. For example, WHO's “probable cancer list” includes 266 radiation sources and chemicals, such as pesticides, gasoline and even coffee. Items identified as carcinogenic to humans are classified as Class A carcinogens, including: smoke, alcohol, and barbecue. Cell phone radiation is only classified as a Class B carcinogen, which may be carcinogenic to humans. Therefore, mobile phone radiation is very low on human carcinogenicity, so you can use it with confidence.

Overcharge can cause the battery to explode?

Does battery overcharging really cause an explosion? In theory, this is indeed possible, but in actual use, battery manufacturers have already taken precautions inside the battery, so there is generally no explosion.
Lithium-ion batteries in actual use are packaged into a panel with a number of cells together with a set of safety protection circuits and various safety devices. These safety designs ensure that the battery's circuitry is automatically shut off during overcharging, over-discharging, and short-circuiting; excessive internal pressure in the battery can also trigger decompression of the exhaust; if the battery temperature is too high, the hot-melt protection device can be triggered to block lithium ions. The movement thus stops the electrochemical reaction of the battery. Therefore, if the phone is fully charged and the power is not removed in time, it will not cause the battery to explode.

However, if you are not using the original battery, but the quality of the cottage battery is not guaranteed, it is difficult to ensure the safety of the battery. Because most of them will not produce according to the prescribed standards. It is inevitable that problems will arise. So choose the original battery or a large brand battery with guaranteed quality.

Calling the phone while charging will explode?

I believe that many people have the habit of playing games or making phone calls while charging their mobile phones. Is this a dangerous approach? It is said that there is a protection circuit inside the mobile phone, which will not cause danger. However, there have been reports in the past that a man who was on the phone while charging the phone caused the phone to explode and the party was killed on the spot. Then, when you charge while you are on the phone, will it cause an explosion?

In fact, in all regular branded mobile phones, protection circuits that prevent safety accidents, such as fuses, are designed. When the external current is too large or short-circuited, the fuse will be burned off, thus cutting off the contact with the bad power supply and protecting its electronic products; the protection circuit of the mobile phone is mainly near its most important IC and CPU, whenever there is bad current information passing Automatically tripping, or providing additional power when the phone battery is suddenly interrupted to supply the phone to continue to save data after shutdown, without losing it, the IC and CPU of each genuine phone will be given a limited job during design. Current and current are generated by data information. If the data information conflicts or suddenly increases, the current supplied to the IC and CPU must be high. At this time, the protection circuit will cut off the current to protect the mobile phone. Security. Therefore, under normal circumstances, even if you call while charging, it will not cause the phone to explode.

Although there is no safety problem in theory, it is impossible to rule out the failure of individual protection measures. If a battery produced by an informal manufacturer is used, it is very likely to cause a mobile phone to explode. Therefore, as far as insurance is concerned, everyone should try not to charge the mobile phone. Call.

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