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Charging treasure selection criteria
Source: | Author:prob07b89 | Published time: 2020-02-25 | 825 Views | Share:
Although many mobile power supplies on the market have a false standard phenomenon. But no matter how false the mark can not escape the test of the number of charges. The dummy is just a soap bubble that can only deceive consumers for a while. No foothold in normal use. However, in actual operation, the charging times of many actual standards also fell short of expectations. What is going on? Let us understand the following issues.


   1. The battery voltage is not 5V, but is 3.7V like the mobile phone. Because it uses the same battery cell material as our mobile phone battery. Even the manufacturing process is the same. However, to charge the phone, the voltage must be raised to 5V. High voltage can charge low voltage. During this boost output process, the boost mode chip will consume a certain amount of power. So the output rate is only 85% ~ 87%. It is not possible to have a percentage output conversion.


    2. When the mobile power is plugged into the phone, any power consumed by the phone is its power. But its power is limited. Consume a little is a little. If you don't open any software, just plug in and charge the mobile power. Cell phones also consume about 50 milliamps of electricity per hour. If you plug in and play games while charging, the power consumption per hour is up to about 400 mAh. So the number of recharges depends on your phone consumption. If you turn off and charge, I can guarantee that the number of times is exactly the same as the calculated number.


   3. The mobile phone has internal resistance, and the mobile power supply also has internal resistance. When it connects to the phone. It and the phone will get hot. This heat is also a loss of electrical energy. Tested according to our instrument. When charging the mobile phone, the mobile phone loses about 16% of its power, and the mobile power source loses about 4% of its heat. These two combined are 20%. So in a comprehensive view, the input rate for entering the cell phone battery is 80%.


    4, mobile power consumption and conversion rate should be calculated. Conversion rate = output rate * input rate. Because charging mobile phones with mobile power is actually two processes. There will be consumption in both processes. In that case, Tanshuo ’s mobile power conversion rate was 87% * 80% = 69.6%. This conversion rate is first-rate in the industry. Don't believe you can try the conversion rate of other homes.


    5, the number of charging is equal to (mobile power capacity-mobile phone consumption * consumption time) * conversion rate / your phone's capacity. And we can't estimate the consumption of your phone. The number of times we tell you is that the algorithm of cell phone consumption is ignored. If the number of occurrences does not match, please test after shutting down. This will make it more accurate.