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How to look at the various output power of mobile phone charger? Mar 27, 2018

In general, most of the mobile phone chargers we use are original chargers, but sometimes we will switch to other chargers, such as:


When we go out for emergency charging, we borrow someone else's charger;


Use a tablet charger to charge the phone;


The original charger is damaged, buy a third-party brand charger...


When it comes to mobile phone chargers, if you pay close attention you will find that a charger may be marked with different output power, and different brands of charger output power are also different. See what kind of specifications your charger belongs to?


Mainstream output power of mobile phone charger


The output power is 5V/1A. At present, the most important is the iPhone, Android some thousand yuan, one hundred yuan, such as Huawei 7s, Honor 8 and other mobile phone chargers.


The 5V/2A, the birth of QC1.0, is currently the standard output power. Many mainstream low-end models on the market use chargers of this charging specification.


Qualcomm QC2.0 charger specifications, the mainstream voltage specifications are 5V/9V/12V, current specifications in 1.5A/2A specifications;


Qualcomm QC3.0 voltage specifications from the 3.6V-20V range, common output specifications, such as 5V/3A, 9V/2A, 12V/1.5A mode, such as millet 6, millet MIX2 as the main representative models.


Qualcomm QC4.0, the overall power up to 28W, 5V maximum output 5.6A, 9V maximum output 3A, in addition to its upgraded version of Qualcomm QC4.0 +, there are only a few mobile phone support, such as Razer Razer Phone mobile phone.


In addition to the above specifications, Meizu phones we are familiar with have multiple modes, such as the specifications of mCharge 4.0, 5V/5A, mCharge 3.0 (UP 0830S), 5V/8V-3A/12V-2A, mCharge 3.0 (UP 1220), 5V /8V / 12V-2A specifications.


In addition, there are output power 5V/4A, 5V/4.5A, mainly OPPO's VOOC flash charge, plus a DASH flash charge and Huawei's honor of some of the major flagship mobile phones.


What is the output specification of your mobile phone charger? If you borrow someone else's charger or buy a new third-party charger, what kind of charger is better for your phone?


What should I pay attention to when using a non-original charger?


When the mobile phone is charging, it is the mobile phone itself that determines the charging current. Therefore, when charging, the mobile phone generally automatically detects the load capacity of the charger and determines the current input amount according to its own electric quantity. However, it must be said that there are some charging issues that still need attention.


1. When using a high-power charger to charge a low-power mobile phone, is it harmful to the mobile phone? The harm is small because the phone has a current adaptive function. Therefore, when the mobile phone is a 5V/2A charging mode, if a 9V/2A charger is used to charge the mobile phone, the charger will automatically recognize the 5V/2A charging specification. Another example is a high-powered iPad charger that can charge a low-powered iPhone and will also work with the iPhone's current standard.


2, low power charger to high-power mobile phone charging, hurt the phone? Having an agreement does not hurt the machine, such as iPhone8 supports fast charging, but the configuration of 5V/1A charger agreement, this will not affect. If there is no charger for the agreement, the charger will be a “small output-big input” and will be working at full speed, causing the phone to heat up and hurting the charger. So, in general, do not use 5V/1A chargers to charge 5V/2A and higher power phones.


4, fast charger to charge non-fast charge mobile phone, will hurt the phone? At present, some fast chargers in the market, in addition to fast charging power, will also retain 5V/2A standard charging power, such as Huawei's P10, Samsung's S8 and other mobile phones. This setting is mainly to avoid the use of fast charging chargers on mobile phones that do not have a fast-charging function, resulting in accidental damage to the phone.


5. What are the reasons for the selection of third-party brand chargers? Due to the good compatibility of third-party brands, basic mobile phones are generally available. However, if the charger with the highest candidate matching degree is selected, for example, if the mobile phone supports QC3.0 or Huawei's FCP fast charging protocol, then the third-party brand chargers such as QC3.0 and FCP can be targeted. Green Alliance's charger is very targeted.