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Comparison BASEUS Compact Quick Charger 2U+C 30W vs BASEUS Super Si Pro Quick Charger C+U 30W

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BASEUS Compact Quick Charger 2U+C 30W
BASEUS Super Si Pro Quick Charger C+U 30W
BASEUS Compact Quick Charger 2U+C 30WBASEUS Super Si Pro Quick Charger C+U 30W
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Typemains chargermains charger
USB A ports21
USB-C ports11
Charge current3 A
Power (with 1 device)30 W30 W
Power (for all ports)15 W30 W
Fast charge
Quick Charge 3.0
Power Delivery 3.0
Pump Express
Samsung Adaptive Fast Charging
Huawei Fast Charge Protocol
 
Quick Charge 3.0
Power Delivery 3.0
Pump Express
Samsung Adaptive Fast Charging
Huawei Fast Charge Protocol
Huawei SuperCharge Protocol 
Dimensions89x45x28 mm85x35x30 mm
Weight69 g68 g
Color
Added to E-Catalogfebruary 2022january 2022

USB A ports

The number of USB connectors in the design of the device. We emphasize that here we are talking only about classic, full-size connectors — the so-called USB A; the number of USB-C ports, if any, is specified separately (see below).

The number of USB ports (of any type) corresponds to the number of gadgets that can be simultaneously connected to the charger using adapter cables or plugs for the appropriate connector. Note that not all chargers are capable of delivering full power to all charging outputs at once; see "Charge current" for details. As for the specific number of ports (USB A and/or USB-C), nowadays, relatively simple chargers for 1 port or 2 ports are the most popular. This is due to the fact that separate chargers are usually purchased for one or two specific gadgets, and a larger number of charging outputs is required relatively rarely. However, on the market you can easily find models with 3 ports or 4 ports ; and the most “multi-charged” modern devices have 5 or 6 USB ports or even more.

Charge current

The maximum current that the device is capable of delivering to the charging output. This is one of the key parameters for any charger, it directly determines its power and, accordingly, its efficiency with certain batteries. These points are described in detail in the “Power” paragraph below, but here we note that if several values are indicated in this paragraph, it means that the design provides for several connectors with different current specs (or several groups of connectors, each with its own amount of amperes per port) .

As for specific numbers, when charging from USB (used in most modern chargers), the maximum current up to 1 A is considered very limited, 1.5 A is low, 2 A, 2.1 A and 2.4 A are average values, and in the most powerful chargers, this figure can be 3 A, 3.4 A and even 5 A.

Power (for all ports)

The total power provided by the device while simultaneously charging the maximum possible number of gadgets. This parameter is indicated only for models that can work with several gadgets; for a 1-socket charger or a wireless platform, the operating power is given in the “Power per 1 device” paragraph.

When evaluating this parameter, two points should be taken into account. First, when the charger is fully loaded, the power of each individual port and/or wireless platform may be lower than the maximum possible value. For example, some models with 2 USB ports for 2 A and 1 A (10 W and 5 W), with simultaneous operation of both ports, can output only 5 W each, that is, only 10 W in total (this is the number and indicated in this paragraph). Secondly, the distribution of power over individual connectors can be different — depending on the current on each port and supported fast charging technologies; these nuances are best specified in the official documentation.

Fast charge

Fast charging technology supported by the device.

By itself, fast charging, as the name suggests, reduces the charging time compared to the standard procedure. For this, increased voltage and/or current power is used, as well as a special smart process control. But the possibilities and features of such charging may be different, depending on the specific technology used in the device. The same technology must be supported by the charger too — this is the only way to 100% guarantee correct operation. However some types of fast charging are mutually compatible — this point should be clarified separately, and compatibility is not always full.

Nowadays, the following technologies are most widely used: Quick Charge of different versions (3.0, 4.0, 5.0), Power Delivery (version 3.0 and 3.1), Pump Express, Samsung Adaptive Fast Charging, Huawei Fast Charge Protocol, Huawei SuperCharge Protocol, OPPO VOOC, OnePlus Dash Charge. Here is a brief description of each of them:

— Quick Charge (1.0, 2.0, 3.0, 4.0, 5.0). Technology created by Qualcomm and used in gadgets with Qua...lcomm CPUs. The later the version, the more perfect the technology: for example, Quick Charge 2.0 has 3 fixed voltage options, and version 3.0 has a smooth adjustment in the range from 3.6 to 20 V. Most often, gadgets with a newer version of Quick Charge are compatible with more old charging devices, but for full use, an exact match in versions is desirable.
Also note that certain versions of Quick Charge have become the basis for some other technologies. However, the mutual compatibility of chargers and gadgets with support for these technologies needs to be clarified separately.

— Pump Express. Own development of MediaTek, used in portable devices with CPUs of this brand. Also available in several versions, with improvements and additions as it develops.

— Power delivery. Native fast charging technology for the USB-C connector. Used by many brands, found mainly in chargers and gadgets equipped with this type of connector. Presented in several versions.

— Samsung Adaptive Fast Charging. Samsung's proprietary fast charging technology. It has been used without any changes since 2015, so it looks rather modest compared to newer standards. Nevertheless, it is able to provide good speed, especially in the first 50% of the charge.

— Huawei FastCharge Protocol. One of Huawei's proprietary technologies. Formally similar to Quick Charge 2.0, but used with both Qualcomm and other brands of mobile CPUs, so compatibility is not guaranteed. In general, it is considered obsolete, gradually being replaced by more advanced standards like the SuperCharge Protocol.

— Huawei SuperCharge Protocol. Another proprietary technology from Huawei introduced in 2016; for 2021 is available in several versions. In some devices, the power of such charging exceeds 60 V — not a record, but a very solid indicator.

— Oppo VOOC. OPPO technology, used both in branded smartphones and in products from other brands. Available in several versions; The latest (for 2021) version of SuperVOOC is for 2-cell batteries and is sometimes listed as a separate technology called Oppo SuperVOOC Flash Charge.

— OnePlus Dash Charge. A relatively old proprietary standard from OnePlus. An interesting feature is that in some gadgets, the effectiveness of Dash Charge is practically independent of the use of the screen: when the display is on, the battery charges at almost the same rate as when it is off. Technically a licensed version of OPPO's VOOC, however, these technologies are not compatible. Since 2018, Dash Charge has been phased out by Warp Charge, but this newer technology is rarely used in separately sold chargers.

In addition, on the market you can find chargers that support rarer and more specific formats of work; the features of these formats can be clarified by special sources.
BASEUS Compact Quick Charger 2U+C 30W often compared
BASEUS Super Si Pro Quick Charger C+U 30W often compared