1, this charging hot component is called the power management chip, is the most important active component of the charger motherboard. Not only charge to use, discharge to charge the mobile phone also need to use, but also manage the power indicator light and lighting. It is normal for the power management chip to be hot during work, but the surface temperature should not exceed 80 degrees Celsius. Generally, it is very hot when touched by hand, which is normal. Of course, the lower the temperature at work, the better the chip quality and the surrounding circuit.
2, charging head internal device damage, failure, voltage instability, reduced efficiency, resulting in serious heat loss, charging head feel hot, this situation needsWe need a new charger. The mobile power supply itself has a large charging current, the charging head cannot afford to take, it is in the limit working state, and it is hot, which requires a charging head with large output current.
3, the charging treasure interface is connected to the circuit board, when charging the circuit heat transmitted to the interface and shell, may be hot, charging time is very long, hot easy to damage the charging treasure circuit. Generally can not be very hot, there is obvious heat, good heat dissipation is no problem. The battery capacity is large, the heat dissipation is fast, and the charging current is relatively small, so the battery heat is very small, and the heat is not felt.
4, the charging treasure for a long time caused by chargingHot usb port is a normal physical phenomenon, the USB port through the current will generate heat energy, resulting in hot USB port. The temperature of the charging bank is very high, and users need to pay attention to the ambient temperature. If you just use the charging treasure, the USB interface of the charging treasure is hot, and the user needs to go to the after-sales service to check whether the charging treasure is damaged.
5, the plug connected to the charging treasure is the charging treasure USB0 output port, there are roughly two reasons for overheating: the charging treasure motherboard boost conversion rate is too low - the charging treasure boost conversion rate is lower than 0.80, the motherboard hot is quite serious. USB0 Plug metal housingIt will gather the heat of the motherboard, so the feel temperature is higher than other parts.
6, the reason for the hot usb interface of the charging treasure is that your charging treasure has been in a working state, constantly output current, and the current will produce Joule heat, which is the content of Joule's law, so the interface will be hot, which is a normal physical phenomenon.
1, power management chip. Shared power bank power management chip is tube charging does not chargeThe power management chip of the charging treasure Power management chip of the charging treasure Power management chip of the charging treasure , this chip is in the working state when charging, and heating is a normal phenomenon. However, when not charging, the charging treasure is in the open state. The battery is empty and there is no current output, and it should not be hot.
2, generally the battery inside the charging bank is faulty. Mobile phone charging treasure, also known as mobile phone power supply, mobile power supply. A portable charger that integrates power supply and charging functions, which can be used for mobile phones and other digital devices anytime and anywhereCharging or standby power supply. Generally, lithium batteries or dry batteries are used as storage units. Different from the internal configuration of the product battery, also called external battery.
3, no power Power management chip , you can change a small monster charging treasure. Small monster shared charging treasure is still good, first of all, from the safety aspect, the small monster shared charging treasure uses a safe and stable lithium battery core, can stable input power, is not easy to appear bulge problem, and the heat dissipation effect is better.
4, now the vast majority of charging treasure internal electricityThe pool voltage is generally 7V. There is a voltage monitoring circuit inside the charging treasure, and the light tube ( charging treasure power management chip you say the light) is on and off to indicate the internal battery voltage and power of the charging treasure, and some slightly better charging treasure also use the LCD screen to display the power of the charging treasure in numbers. An electronic product is an internal circuit board, which is equipped with different electronic components to achieve its function. Electronic components are also subject to certain errors and aging.
5, the power bank output is also 5V, but with the output, the output voltage will gradually reduce, and finally the mobile phone battery voltage phaseSame.) . When the voltage is the same, the phone can't be charged. This point you can use this method to verify the charging treasure power management chip : "from 30% to 89% dead or alive" after the connection is disconnected, the mobile phone game light, the charging treasure does not charge directly to the mobile phone again, can be charged into the explanation is what I said.
6, consider whether there is a problem with the charging cable, change a charging cable to see. When we buy a charging bank, we will be equipped with a charging cable, and when we find that the charging bank cannot be charged, we should first check the charging lineTurn the screen to its dimmest brightness and plug it back in. The charger or cable is not original: Replace it with the original iPhone cable and the original charger before charging.
The reason why the Xiaomi charging treasure can not charge the Apple phone is caused by the data recognition function of the original data cable of the Apple phone. Because the charging cable with the mobile power supply is the Android system, the original charging cable of your own phone is used when charging the Apple phone. After the data recognition function of the original charging cable is connected, the mobile phone will prompt that the device cannot be identified, and there is no charging at this time.
Hi! Millet mobile power has many imitations, if not bought in the official website, the output current and voltage may be insufficient. Apple's mobile phone has strict requirements for power supply, and non-standard power supply will be rejected.Because the output of the data line is different. Xiaomi charging treasure pro only supports the Android version, which does not support the identification of Apple mobile phones, so the reason why the Xiaomi pocket version charging treasure pro Apple cannot be identified is that the output of the data cable is not the same.
In general, the mobile power three-in-one chip refers to an IC integrated boost, power management and power detection chip, and the five-in-one chip refers to the three-in-one chip on the basis of strengthening the protection function of the power management module, as well as the effect of LED lights.
Charge management circuit The charge management circuit uses CN3066, which divides the charging process into four parts: trickle charging, constant current charging, constant voltage charging and maintenance charging, so that the mobile portable power can maximize the reserve energy. DC-DC boosts the voltageThe DC-DC booster circuit adopts the MAX1771 integrated chip, which can release the lithium core capacity to the maximum extent within the safe range to achieve the purpose of supplying power to a variety of digital devices.
Normal cell parallel is required to match resistance, that is, the internal resistance/voltage/capacity of each cell needs to be within a certain range. Whether your battery itself is equipped with a protective plate also has an impact. Then, how much is the load capacity of the 5V booster plate? Most of the general market uses 800mA, 1A and the like. The actual dedicated mobile power board is sold online, and it is not expensive.
2, the data cable is not in good contact, it is recommended to change a cable or use the original data cable Power management chip of the charging bank ; The charging bank may not be charged because the charging head is not good, or the output current is too small, you can use the computer to charge, or change the 2A adapter to charge the charging bank> Power management chip ; The power supply of the charging treasure is excessive, resulting in failure to charge.
3, charging line problem, replace the good line is OK, charging interface voltage is insufficient, replace the interface; The mobile phone system is unstable, restart the mobile phone, or restore factory Settings, restart the mobile phone, restore factory Settings, system garbage and temporary files will be automatically cleared; If the above method cannot be solved, that is, the mobile phone charging interface problem or other hardware problems, it is recommended to find a maintenance solution.
4, the charging treasure itself has quality problems: may buy defective products or copycat goods, batteriesThe battery is easily damaged, it is recommended to return the seller immediately. Charging cable problem: the charging cable contact is poor, you can plug the data cable into the phone to try whether it can be charged, if not, it is recommended to change the line to use.
5, the charging treasure is not charged into the reason: there is a problem with the charging cable; USB charging loose charger has a problem charging treasure no power charging treasure fault charging treasure charge into the solution: change a charging cable to see. The USB port is tight for the first time. In addition, the data cable can be replaced, or other mobile phones can try again to see whether it is normal, and you can also try again after charging the mobile power for a few minutesTry.
6, the charging treasure can not be charged by a variety of reasons, the following are some possible reasons: power exhaustion: If the power of the charging treasure has been exhausted, then you can not charge the phone. In this case, you need to connect the charging bank to the power supply to charge. Mismatch between the charging bank and the mobile phone: The voltage, current, interface and other specifications of the charging bank and the mobile phone do not match, resulting in the failure of the charging bank to charge the mobile phone correctly.