Lithium battery. According to the official website of Star Maker mobile phone, we learned that the battery of Star Maker mobile phone is a lithium battery. Star Maker Elite Training Camp is a premium IT training brand owned by Huaqing Vision Education Technology Group. It is an elite IT training platform created by the group to keep up with the new development trends of the IT industry and new market demands.
What brand is the LXD lithium battery?
Generally speaking, as long as the battery is produced by a regular manufacturer and meets national standards, there will be no issue. Nowadays, mobile phone lithium battery technology is very mature and the requirements are not high, so generally speaking, there is no problem. The battery is also a consumable and can be replaced within a year, and the batteryantie is only three months.
Will accidentally using an iPad charger to charge an iPhone impact the phone's electrical panel?
Tian Neng.
Lithium battery is a primary battery that uses lithium metal or lithium alloy as the negative electrode material and uses non-aqueous electrolyte solution. It is different from rechargeable lithium-ion batteries and lithium. ionic polymer batteries in the same way.
Tianneng was founded in 1986. After more than 30 years of innovative development, it has become an enterprise whose core business is the production and manufacturing of green energy batteries, especially solar batteries. new energy lithium, smart energy, resource recycling and green smart batteries. It is a large industrial group with sales exceeding 100 billion yuan in industrial sectors.riels such as industrial manufacturing parks, smart logistics and financial decision makers.
Can the iPad charger charge iPhone?
One end of the charger plug is plugged into a 220V AC outlet and the other end is connected to the iPhone/iPad using Apple's dedicated connector. data cable. The 220V alternating current is first converted into high-voltage direct current through the rectifier circuit, then converted into high-frequency, high-voltage pulses through the switching tube, and then converted into low-voltage pulses (such as 5V) through the transformer . . The 5V low voltage pulse goes through a rectifier and voltage stabilizing circuit and becomes a stable 5V DC power supply. In the whole process of changing from 220V AC to 5V DC, the transformer, the rectifier circuit and the voltage stabilization circuit only play a role in changing the form of electrical energy (from AChigh voltage to low voltage DC).
When it comes to charging, only the charger cannot be slapped. If the 5V output end of the voltage stabilizing circuit (USB interface) is not connected to the iPad or iPhone (called charging in terminology), no current will flow and no power will be consumed. Once the load is connected, the charger starts working. The current flowing through the charger depends on the state of the load: as long as it is within its capacity and the load requires that much current, the charger will provide that much current. If the current required by the charge exceeds the upper limit of current the charger can supply, the charger will still produce the maximum current. Indeed, a protection circuit is generally designed inside the charger. Once the output current is too large, the protection mechanism is triggered and the current output is suspended. However, in order to allow melaTo maximize all of its chargers and digital products, Apple has come up with a strange trick:
If you look closely at the USB interface, you will see that there are four narrow metal strips called four pins. These four pins are respectively connected to the 5V power supply, GND ground, the positive signal of the D+ data line and the negative signal of the D- data line. For chargers generally compatible with the USB interface, the D+ and D- pins float. As long as a device is plugged into such a charger, it will receive power from the 5V and GND pins. Apple's charger adds voltage division resistors to both data pins D+ and D-, so the charger can read two voltages on these two data lines while charging. Manufacturers on the Internet have proven by practice that the voltage on D+ of the 5V1A charger corresponding to the iPhone or iPod is 2V, and the voltage on D- is also 2V while lThe 5V2.1A charger used by the iPad has a voltage of 2V; D+ of 2.7V and a D- voltage of 2V. When an iPad or iPhone is connected to a charger, the different voltages on these two pins can indicate which charger is currently in use, and the charge can be adjusted accordingly to charge safely. This design also prevents regular chargers from charging Apple devices.
What actually happens when you use an iPad charger to charge your iPhone?
There's a reason why iPad and iPhone chargers are designed differently. The iPhone battery capacity is low and requires only 1A of charging current to complete charging in a reasonable time. Although a larger charging current can greatly reduce the charging time, it will generate greater heat, and high temperature is the main cause of reducing battery life.lithium battery. The maximum output current of the iPhone charger is therefore designed to be 1A.
The iPad charger is marked 5V 2.1A, which means that the iPad charger can only output a maximum current of 2.1A. When using an iPad charger to charge an iPhone, although the iPad charger can provide a maximum current of 2.1A, since the iPhone can only accept 1A of current, the iPad charger must accept it. It's like driving on a 4 lane highway. When you encounter a toll booth, only one toll booth is open, so there is only one car passing through the toll booth at the same time.
The iPad battery is designed so that the charging time is optimal when the charging current is 2.1A. If you use an iPhone charger to charge an iPad, since the iPhone charger can only provide a maximum output current of 1A, the total charging time will be about 2.1 times longer than beforet. Thanks to Apple's little tricks on the data pins of the USB interface, the iPad knows that it is the iPhone charger, so it will not "require" a charging current greater than 1A, and will not overcharge the iPhone charger or cause damage. It's also like being on a highway. Although there are four toll booths in the toll plaza, due to construction work there is only one lane actually open to traffic, so there is still only A maximum of one car passes through the toll booth. at the same time.
As for the last thing mentioned in this Weibo, excessive current can cause key capacitors to fail, which is completely illogical, and also shows that the author of Weibo lacks knowledge of electrical physics. The most basic function of a capacitor is to "pass alternating current and block direct current." The charger produces an aliDC power, and no matter how large the DC current is, it cannot pass through the capacitor and cannot cause the capacitor to "break down". What can cause a capacitor to fail is too high a DC voltage, which is the “breakdown voltage”.
Conclusion: the rumors have been shattered. It is entirely possible to use an iPad charger to charge an iPhone, and the iPhone or charger will not be damaged. The iPhone charger can also charge the iPad, but it takes longer to charge.
What is the charging process?
One end of the charger plug is plugged into a 220V AC outlet and the other end is connected to the iPhone/iPad using Apple's dedicated data cable. The 220V alternating current is first converted into high voltage direct current through the rectifier circuit, then converted into high frequency and high voltage pulses through the switching tube, and then converted into low pulsesvoltage (such as 5 V) via the transformer. . The 5V low voltage pulse goes through a rectifier and voltage stabilizing circuit and becomes a stable 5V DC power supply. In the whole process of changing from 220V AC to 5V DC, the transformer, the rectifier circuit and voltage stabilizing circuit only play a role in changing the form of electrical energy (from high voltage AC to low voltage DC).
When it comes to charging, only the charger cannot be slapped. If the 5V output end of the voltage stabilizing circuit (USB interface) is not connected to the iPad or iPhone (called charging in terminology), no current will flow and no power will be consumed. Once the load is connected, the charger starts working. The current flowing through the charger depends on the state of the load: as long as it is within its capacity and the load requires that much current, the charger will provide that much currentant. If the current required by the charge exceeds the upper limit of current the charger can supply, the charger will still produce the maximum current. Indeed, a protection circuit is generally designed inside the charger. Once the output current is too large, the protection mechanism is triggered and the current output is suspended. However, in order to allow all its chargers and digital products to be mixed as much as possible, Apple has come up with a strange trick:
If you look closely at the USB interface, you will see a total of four narrow metal strips, called four pins. These four pins are respectively connected to the 5V power supply, GND ground, the positive signal of the D+ data line and the negative signal of the D- data line. For chargers generally compatible with the USB interface, the D+ and D- pins float. As long as a device is plugged into such a charger, it will receive powervia the 5V and GND pins. Apple's charger adds voltage division resistors to both data pins D+ and D-, so the charger can read two voltages on these two data lines while charging. Manufacturers on the Internet have proven by practice that the voltage on D+ of the 5V1A charger corresponding to the iPhone or iPod is 2V, and D- is also 2V while the iPad uses 5V2.1;For charger A, the D+ voltage is 2.7V and the D- voltage is 2V. When an iPad or iPhone is connected to a charger, the different voltages on these two pins can indicate which charger is currently in use , and the charging can be adjusted accordingly to charge safely. This design also prevents regular chargers from charging Apple devices.
What actually happens when you use an iPad charger to charge your iPhone?
There's a reason why iP chargersad and iPhone are designed differently. The iPhone battery capacity is low and requires only 1A of charging current to complete charging in a reasonable time. Although larger charging current can greatly reduce the charging time, it will generate greater heat, and high temperature is the main cause of shortening the life of lithium battery. The maximum output current of the iPhone charger is therefore designed to be 1A.
The iPad charger is marked 5V 2.1A, which means that the iPad charger can only output a maximum current of 2.1A. When using an iPad charger to charge an iPhone, although the iPad charger can provide a maximum current of 2.1A, since the iPhone can only accept 1A of current, the iPad charger must accept it. It's like driving on a 4 lane highway. When you encounter a toll booth, only one toll booth is open, so there isonly one car passes through the toll booth at the same time.
The iPad battery is designed so that the charging time is optimal when the charging current is 2.1A. If you use an iPhone charger to charge an iPad, since the iPhone charger can only provide a maximum output current of 1A, the total charging time will be about 2.1 times longer than before. Thanks to Apple's little tricks on the data pins of the USB interface, the iPad knows that it is the iPhone charger, so it will not "require" a charging current greater than 1A, and will not overcharge the iPhone charger or cause damage. It's also like being on a highway. Although there are four toll booths in the toll plaza, due to construction work there is only one lane actually open to traffic, so there is still only A maximum of one car passes through the toll booth. at the same timep.s.
Excessive current can cause key capacitors to fail, causing complete logic failure. The most basic function of a capacitor is to "pass alternating current and block direct current." The charger produces DC power, and no matter how large the DC current is, it cannot pass through the capacitor and cannot cause the capacitor to "break down". What can cause a capacitor to fail is too high a DC voltage, which is the “breakdown voltage”.
It is entirely possible to use an iPad charger to charge an iPhone, and the iPhone or charger will not be damaged. The iPhone charger can also charge the iPad, but it takes longer to charge.