With the ongoing trend of automation technology, USB chargers have become ubiquitous in everyday life. Simply put, a USB charger works by connecting your device to a computer’s USB port, allowing the computer’s USB port itself to provide power for charging—no bulky transformer is required. Its design is remarkably simple and far more convenient than earlier chargers. It has become an essential gadget for home and travel, and you can even discard your old transformers.
What are the advantages of a USB charger?
The advantage of a USB charger is that it allows you to both charge your device and connect it to your computer at the same time—this is very convenient. However, we recommend using a power outlet for charging whenever possible, as it charges faster and also prevents the charger from drawing power away from your computer’s operating voltage!
What charging method do you all think is best?
It’s quite noticeable that some people use USB charging and feel it takes a long time. However, this approach comes at the cost of reducing the number of battery cycles. Therefore, everyone should choose the charging method that best suits their own circumstances.
Therefore, the best approach is for everyone using Xiaomi devices to use genuine chargers whenever possible (a USB cable can be used if necessary).

Quick Charge QC3.0 Dual-Port Car Charger

Power adapter

Type-C 3.1A Dual-Port Car Charger
2.1A & 1.0A Dual-Port Car Charger (Golden)
The features, advantages, and disadvantages of well-known brand car chargers are relatively consistent. Everything has multiple facets, and the advantages and disadvantages of renowned-brand chargers are shared:
Advantage:
(1) Because the 2576 incorporates safety features such as overcurrent protection and overtemperature protection, it integrates a 358 (dual operational amplifier) to achieve functions including constant-current source CV, constant-current power supply CC, and overvoltage protection OVP. This results in a reliable, safe, and comprehensive lithium-battery charging solution.
(2) The constant-current (CC) power supply and overvoltage protection (OVP) are implemented by using the output of the 358 to control the EN pin of the 2576. Consequently, the charging current exhibits relatively high harmonic distortion, and the response times of both CC and OVP are insufficiently fast (as they depend on whether the 2576 is switching or not).
(3) Since 2576 is fixed at 52 KPWM SPWM, the EMI design of the on-board charger becomes relatively straightforward.
(4) Since both 2576 and 358 are manufactured using a 40V high-voltage bipolar process, they are more “robust.”
(5) This type of plan is commonly found in car chargers with output currents ranging from approximately 0.8A to 1.5A.
(6) A fully integrated design plan for dedicated in-vehicle chargers, featuring low system costs and high stability.
(7) The internal CV, CC, and OVP circuits of the IC are all implemented by controlling the PWM; therefore, the output voltage, output current, and output overvoltage protection exhibit higher precision and faster response times.
(8) Xinlong offers a range of cost-effective products for car chargers with charging currents ranging from 0A to 2A.
9) With its sleek design, compact size, and convenient usability, this ultra-small, well-known brand car charger is highly praised.