It depends if it is a professional test or a simple test;
If it is a simple test, the method you mentioned is enough;
If it is a professional test test, you should use a professional test battery capacity separation cabinet;
Use an adjustable load resistor and a DC power supply with adjustable current to measure charge and discharge time to calculate battery capacity. is also several times, then the results are. To average, refer to the formula:
Charging current × charging time = battery capacity (2.7V or 3.0V to 4.2V charging) < /p>< p>or
Discharge current × Discharge time = battery capacity (4.2V to 2.7V or 3.0V discharge)
When installing a lithium battery, where is the battery meter located?< /h3>
Take Huawei mobile phones as an example, the operation is as followsbefore:
1. Open the Huawei mobile phone to check the battery capacity through the APP, which can be downloaded. via the app store.
2. After opening the app, click Function Test on the right.
3. After entering the functional test, select the battery loss test.
4. Plug in the charger to estimate battery capacity. It should be charged continuously for more than 10 minutes. After measuring, unplug the charger.
5. After unplugging the charger, you can see the battery's rated capacity and estimated capacity.
Precautions for daily use of mobile phone battery:
1. Do not continue charging once it is fully charged. If your phone is fully charged but still connected to a power source, battery life will be affected. Indeed, once the phone battery reacheseint 100%, it goes into “trickle charge” mode – maintaining a full charge. If you continue to charge, the mobile phone battery will be affected by the current and some chemical components will be destroyed, affecting the use efficiency. ?
2. Do not charge to 100%. In fact, lithium batteries do not need to be fully charged before being turned off. This is because when the mobile phone is fully charged, the voltage inside the battery increases, thereby increasing the load on the battery. Therefore, mobile phone charging can be plugged and unplugged as long as it can be used normally. ?
3. The mobile phone can be plugged in at any time. Many people have the habit of recharging their mobile phones after the battery runs out, but in fact, as long as there is a power source, the mobile phone can be recharged at any time. In fact, telephone batteriesToday's portable phones generally use lithium batteries, and multiple plugging and unplugging of power sources will not affect the battery. Research has shown that the charging effect is optimal when 10% of the phone's power is consumed. ?
4. Unplug the phone if it becomes hot while charging. Cell phone batteries are very sensitive and sensitive to heat. Studies have shown that regardless of the brand of the mobile phone, charging while wearing a poorly breathable mobile phone case can easily cause the mobile phone to overheat locally and affect the charging effect. Therefore, you should always pay attention to the temperature when charging your cell phone. If it is hot, unplug the phone immediately and remove the case. Additionally, avoid exposing your phone to direct sunlight.
Stuck inside the framenot. Lithium battery meter installation method:
1. Prepare the battery, the red terminal is the positive pole., the blue terminal is the negative pole.
2. Connect the positive electrode to the negative electrode of the second battery.
3. Connect the positive terminal of the second battery to the negative terminal of the third battery.
4. Connect the negative pole of the electric car to the negative pole of the first battery. Finishing.