With the popularity of smart phones,tablets,laptops and other electronic devices,high-power multi-port chargers due to“high efficiency and space saving”has become a new consumer favorite.However,the market is a mixture of good and bad products,poor-quality chargers may lead to equipment damage,shorten battery life or even fire and explosion.How to choose a safe and reliable product?Experts give key advice.
First,the current state of the market:surge in demand,hidden risks
In recent years,support 65W,100W or even higher power multi-port charger sales surge,especially favored by students,business people.However,market surveillance found that some low-priced products have“false power”,“no overheating protection”and other hidden problems.2023 a third-party test report shows that about 15% of the sampling charger did not pass the safety certification,there is a risk of leakage,overload.
Second,the five main points of safety purchase
1.Recognize the official certification mark
Must pass the national mandatory certification(CCC),international general certification(such as UL,CE,PSE,etc.).
Wary of“fake certification”label,you can check the authenticity of the code through the official website.
2.Core chip and protocol matching
Priority should be given to products equipped with mainstream fast charging protocols(e.g.PD3.0,QC4.0)to avoid damage to the device caused by incompatible protocols.
High-quality chargers will indicate the brand of the chip.
3.Reasonable power distribution
When multiple ports are used at the same time,the total output power may drop.For example,a charger with a nominal power of 100W may be reduced to 60W+40W for simultaneous use of two ports.
Check the“Multi-port power allocation table”in the manual before purchase to match your own equipment needs.
4.Material and heat dissipation design
The shell should be flame retardant(V-0 fireproof material)to avoid melting at high temperature.
Observe whether there are cooling holes or graphene cooling layer,overheating protection is essential.
5.Be wary of the“low price trap”
Products priced significantly lower than the industry average(such as 100W chargers within 100 dollars)may cut corners.
Priority should be given to high-profile brands with high reputation,or original cell phone accessories.
Third,experts remind:these scenes need to be vigilant
Abnormal heat while charging and playing:stop using it immediately.
Charger“ZiZi”sound:may be a precursor to circuit failure.
Equipment charging speed suddenly slowed down:check whether the charger is aging or overloaded.
Experts from the China National Institute for Standardization of Electronic Technology suggest,“Consumers can avoid purchasing‘three no's’by simply checking themselves by looking at the certification,testing the temperature and checking the agreement.”
Safety is no small matter.Although high-power chargers are convenient,safety is still the primary prerequisite.Consumers should buy them through regular channels,keep their purchase certificates,and report any problems to the market supervision department in a timely manner.