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Shenzhen KINRI Energy Technology Co.,Ltd.

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· What are the effects of using a low-power charger to charge a laptop?

Charging a laptop with a low-power charger can have the following adverse effects：1. A low-power charger provides a smaller current, which slows down the charging speed.2.Frequent use of low-power chargers to charge laptops can lead to excessive discharge or insufficient charging of the battery. It will accelerate the aging process of the battery and shorten its service life.3. If the laptop is used simultaneously and the charging power is insufficient, the battery will be consumed as supplementary energy. When the battery level drops, in order to save power, the laptop will automatically reduce its performance, such as lowering the processor speed or screen brightness. This may cause the computer to run slower or experience lag.4. Low power chargers require prolonged operation to provide sufficient power, which can easily cause the adapter to overheat, potentially damaging the power interface of the adapter or laptop, and even causing safety issues.5.In some cases, low-power charging...
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04-11
2024
· Which is more harmful to the human body, DC or AC？

Direct current and alternating current are two different forms of current, and their degree of harm to the human body also varies. Overall, AC electricity usually causes greater harm to the human body than DC electricity. The following will provide a detailed comparison and analysis of the two from multiple perspectives.Firstly, the basic properties of alternating current and direct current are different. The voltage and current of alternating current will periodically change over time, while direct current will maintain a constant voltage and current. This periodic change makes it easier for alternating current to cause muscle contraction and relaxation when passing through the human body, resulting in the inability of the electrocuted person to release the power source and increasing the risk of electric shock. In contrast, direct current has a relatively stable impact on the human body and does not cause periodic muscle contraction and relaxation, making it relatively safe.Secondly...
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04-11
2024
· Can a 3.7V battery be charged with a 5V charger？

In our daily life, it is common to have a dead phone but forget to bring a charger. Therefore, many friends choose to borrow someone else's charger to charge their phones, which inevitably leads to a mismatch in current and voltage. So, can a 3.7V lithium battery be charged with a 5V charger? Let's take a look together!Can a 3.7V lithium battery be charged with a 5V charger？Short term emergency use is possible, but prolonged use can cause battery damage, as a 5V output USB charger has a higher voltage than a 3.7V lithium battery. Long term use can cause battery damage. Batteries have a specified maximum voltage and current, and exceeding the maximum voltage or current can cause damage to the charger.Mobile phones are regular chargers. Can fast charging be used to improve charging speed？If your original phone charger belongs to a regular charger, then fast charging cannot be used to improve charging speed. Many users want to switch to a fast charging to improve charging speed, which is...
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04-11
2024
· Can chargers be interchangeable with different currents?

In general, a charger with a current slightly less than or equal to the rated current of the device can be used to charge mobile phones and other devices, but it is not recommended to use a charger with a current greater than the rated current of the device.Can chargers with different currents be interchangeable?The current of the charger has a certain impact on the charging speed of the device. According to Ohm's law, the greater the current, the more electrons pass through the resistance, and the more heat is generated by the current. Some mobile phone brands have different charging standards: for example, the charger current for Apple devices is 5V/1A, while Samsung has 5V/2A.Although the current varies, generally speaking, a charger that is slightly less than or equal to the rated current of the device can be used to charge devices such as mobile phones. This not only does not cause harm to the device, but also reduces battery expansion and extends battery life. But it is not reco...
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04-11
2024
· Is it possible to charge a 6v battery with a 12v charger?

Strictly speaking, it is not possible because it is indeed difficult to control the charging process. If the output voltage of the charger is too high, it may directly damage the battery. But in practice, it can be operated on the premise that people do not leave the charging site. Stop charging every 20 minutes and measure the battery voltage. If the battery voltage is below 6.2V, continue charging. When the battery voltage approaches 6.2V, the battery can be stopped when it is saturated.1. Direct use is not allowed because the output voltage is relatively high, which can easily damage the battery.2. Two 6V batteries can be connected in series (with one positive pole connected to the other negative pole) for charging.3. Install a resistor on the output part of the charger to reduce the voltage to 7.5-8V for charging.But if the charging current allowed by the 6V battery capacity is greater than that of the 12V charger, it can be used for charging, but it is important to control the ch...
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04-11
2024

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