Robert Triggs / Android Authority
Fast charging has become a must-have feature in today’s phones. It keeps our batteries topped up throughout a busy day and has us back in action in mere minutes. However, there are a variety of different standards from different companies, and speed is often dependent on individual cables and charging adapters. It can all get a bit confusing, so we’re here to make sense of it.
If you’re brand new to the idea of fast charging, the idea is to provide more power to the battery via a USB port than the connector’s rather pitiful default 2.5W of power. If you’ve ever wondered why a USB port is taking several hours to charge your smartphone, this is why. Without fast charging capabilities, old USB-A ports can be painfully slow. USB Type-C ports can be faster — up to 15W faster — but there are no guarantees.
Today’s fast charging smartphones range anywhere between 18W to 120W worth of power, with charge times ranging from 20 minutes to just over an hour. There are even 240W super-fast charging phones on the market, although these definitely aren’t the norm. Fast charging isn’t just reserved for wired charging these days. Wireless charging is also getting in on the game.
If you want to know how this technology works and how all the popular fast charging standards compare, then stick around.
Before diving into fast charging standards, let’s cover some basics on charging up batteries. Like all electronic devices, batteries operate with a specific voltage and can input and output a certain amount of current. More of both means more power, and therefore faster charging. However, batteries have very strict operating limits, particularly regarding voltage, that must be followed in order to charge them safely.
Fast charging a battery isn’t just a case of throwing as much voltage and current at a battery as possible. Instead, battery charging is broken down into two distinct phases — constant current and constant voltage. The diagram below shows how voltage changes during charging and how that impacts the amount of current that can be passed to a battery.
Battery UniversityLower battery voltages help prolong capacity over time. Green: lower voltage charging for first ~65%. Yellow: Start of constant voltage. Red: Long period of high voltage charging for last 15%.
Fast charging technologies exploit the constant current phase by pumping as much current as possible into the battery before it reaches its peak voltage. Therefore, fast charging technologies are most effective when your battery is less than 50% full but has a diminishing impact on charge time once the battery passes 80%. Incidentally, constant current charging is the least detrimental period to the battery’s long-term health. Higher constant voltage, along with heat, is more detrimental to battery life.
Your phone doesn't fast charge uniformly from 0 to 100%
There are a number of techniques that manufacturers can use to increase the current handling capabilities of their batteries to improve charging times. For example, more expensive batteries may come with a higher C-rate and new materials to withstand higher currents and temperatures. Batteries with multi anode and cathode tabs can lower a battery’s internal resistance and increase its current. Dual-cell batteries split the current across two batteries in parallel to give the appearance of faster charging.
Optimizing battery charge times now also involves voltage and current monitoring, and optimizing algorithms. Along with temperature, this data can be fed back to smart chargers to optimize power delivery to a device, such as your smartphone. This power negotiation is where fast charging standards, outlined below, come into play.
Robert Triggs / Android Authority
Now that we know how fast charging works, let’s look at the various standard found in smartphones and other gadgets.
USB Power Delivery (USB PD) is the official fast charging specification published by the USB-IF back in 2012. Since 2020, USB PD has become the most commonly supported charging standard in the smartphone industry. Even though a large number of phones still sport faster proprietary standards, the majority of phones today support USB PD over their USB-C port.
Just like all fast charging standards, USB PD implements a data protocol to communicate between the charger and phone. This negotiates the maximum tolerable power delivery for both the charger and handset. USB PD scales in power from as little as 0.5W all the way up to 100W.
USB PD Power RangeFixed VoltageCurrent RangeExample devicesUSB PD Power Range
0.5 - 15W
Fixed Voltage
5V
Current Range
0.1 - 3.0A
Example devices
Headphones, small USB accessories
USB PD Power Range
15 - 27W
Fixed Voltage
9V
Current Range
1.67 - 3.0A
Example devices
Smartphones, cameras, drones
USB PD Power Range
27 - 45W
Fixed Voltage
15V
Current Range
1.8 - 3.0A
Example devices
Tablets, small laptops
USB PD Power Range
45 - 100W
Fixed Voltage
20V
Current Range
2.25 - 3.0A
3.0 - 5.0A only with rated cable
Example devices
Large laptops, displays
Smartphones typically make use of around 18-25W of power for charging with USB PD. The standard also supports bi-directional power, enabling your phone to charge other peripherals. Most smartphones have moved on from the base USB PD standard, but some like the Pixel 7a still make use of it.
Indeed, the optional Programmable Power Supply (USB PD PPS) has become far more commonplace these days. This optional part of the USB PD spec introduces more flexible voltage control in 20mV steps, making it much more useful for optimal fast charging. The Samsung Galaxy S24 Ultra and Pixel 8 series are examples of fast-charging phones that use USB PD PPS.
Qualcomm’s Quick Charge may not be quite as prominent in the smartphone charging space as it was a few years ago, owing to the growth in both proprietary and USB PD standards. But it’s now in its fifth generation and still kicking about in a range of smartphones.
The latest Quick Charge 5 is backward compatible with all the previous Quick Charge revisions and USB PD. It is also compatible with the USB PD specification and capable of providing up to 100W of power to more demanding gadgets. This is much more power than the previous revisions, which typically offered 18W and 27W of power to compatible gadgets.
VoltagesMax CurrentMax PowerQuick Charge 1.0
Voltages
5V
Max Current
2A
Max Power
10W
Quick Charge 2.0
Voltages
5 / 9 / 12V
Max Current
3A
Max Power
18W
Quick Charge 3.0
Voltages
3.6 - 20V (200mV increments
Max Current
2.5 / 4.6A
Max Power
18W
Quick Charge 4+
Voltages
3.6 - 20V (200mV increments) QC Mode
5 / 9V USB-PD Mode
Max Current
2.5 / 4.6A QC Mode
3A USB-PD Mode
Max Power
18W QC Mode
27W USB-PD Mode
Quick Charge 5
Voltages
3.3 - 20V
Max Current
3A, 5A, >5A modes
Max Power
100W
With incremental operating voltages up to 20V, 3A to 5A of current, Quick Charge 5 very much resembles the fast charging capabilities of USB PD PPS. Qualcomm augments its standard with charger identification capabilities, along with voltage, current, and thermal protection protocols. In Qualcomm’s words, it’s designed to be even safer than the USB PD standard.
Over the years, plenty of other companies have developed their own fast-charging standards. Many of these were created back when USB-A ports were popular. However, some have become more or less obsolete with the move to USB-C and the proliferation of USB PD. However, some are sticking around because of extensive support by legacy devices or because they’re faster than what’s on offer with more universal standards.
For example, the Apple 2.4A protocol augments standard USB-A ports with 2.4A of current, rather than the basic 0.5A capabilities. Newer iPhones, and a selection of older gadgets, make use of these capabilities to charge up from older ports. Samsung Adaptive Fast Charge is a similar legacy standard designed for older Samsung Galaxy smartphones and it’s supported in newer generation models, as well. This provides up to 15W of power, making it notably slower than more modern fast-charging technology.
Many big-name smartphone brands use USB PD PPS disguised under a flashy name like Super Fast Charging.
Other less popular and older standards, such as Motorola Turbo Charge and MediaTek’s Pump Express, are depreciated or have essentially become little more than wrappers for USB Power Delivery. Samsung’s standard, dubbed Super Fast Charging, is also just another name for USB PD PPS.
Very fast proprietary charging standards are still found across the smartphone industry, particularly from Chinese manufacturers. Examples include HUAWEI SuperCharge, OPPO’s SuperVOOC, and Xiaomi’s 120W charging technology. These technologies range from 40W up to 240W, far surpassing implementations seen with Quick Charge and USB Power Delivery standards.
In a spot of good news, proprietary chargers from the likes of OnePlus and Xiaomi are increasingly supporting USB PD in addition to their own protocols. This enables these single power bricks to fast charge smartphones, laptops, and much more, while reducing the need for multiple adapters.
Kaitlyn Cimino / Android Authority
Wireless charging smartphones share similar principles and hurdles as wired fast charging. Devices still require a fast-chargeable battery and a method for communicating information from the gadget to the charger. Then, there’s the added complication of efficiently transferring a large amount of power over the air.
Qi (pronounced chee) is the most broadly adopted standard in the mobile wireless charging space. Just like USB PD, the standard has undergone several revisions, improving the standard’s power capabilities and communication use cases. Qi also implements reverse wireless charging, allowing phones to slow-charge other wireless gadgets.
Qi version 1.0, released in 2010, provided just 5W of power. Over the years, that has expanded to 10W, 15W, 30W, and even 65W of power for larger devices. However, in the smartphone space, 15W tends to be the upper limit, with many devices opting for slower 10W and 7.5W configurations. So, Qi is still slower than wired charging.
All wireless charging smartphones support the universal Qi standard, but some go beyond.
Apple also introduced its own proprietary wireless charging technology with MagSafe in 2020. MagSafe also charges at 15W, making it slower than the iPhone 12’s 20W of wired power provided by USB Power Delivery. In 2023, Apple contributed to the universal Qi2 wireless charging standard that includes a MagSafe-esque magnetic attachment. While this magnetic coupling will increase wireless charging efficiency, early versions of Qi2 won’t surpass the 15W barrier.
That said, there’s a growing market for much faster proprietary wireless charging standards, especially among Chinese brands. OPPO and OnePlus boast 80W wireless AirVOOC, Xiaomi has a 100W charger, and HUAWEI has its 40W technology, just to name just a few.
The key to faster wireless charging is to use more coils for transferring the current over the air. However, this has the side effect of costing more to implement, taking up more space, and increasing charging temperatures. While fast wireless charging is clearly possible, it’s not the most efficient way to quickly charge up smartphones and other gadgets.
Ryan-Thomas Shaw / Android Authority
Compared with just a few years ago, the smartphone market in 2024 has finally coalesced around a small selection of standards for fast wired and wireless charging. In the wired space, we’re happy to report that USB PD has become the de facto standard for smartphone charging across both the Android and iOS ecosystems.
USB PD is also proving popular in laptop markets. This means you can use a single multi-port wall adapter to fast charge all of your devices. That said, the introduction of USB PD PPS has added a new layer of confusion for consumers. Wireless charging is in a similar space, with brands rallying around the Qi as the ubiquitous industry standard but some still rely on their own proprietary implementations.
That said, proprietary standards have their place in the charging game and are propelling speeds to new heights. 240W wired, let alone 100W wireless, was unthinkable just a few years ago. And despite their growing ubiquity, USB PD and Qi definitely aren’t the fastest technologies in the business. Before we part, here’s a list of smartphone brands and which fast charging standards they use respectively:
Fast charging in warmer environments can lead to the device heating up. This can lead to faster degradation of battery health. That said, getting a battery replacement after a few years no longer costs a pretty penny.
Redmi and OPPO have shown off 300W and 240W fast charging, making them the fast charging phones in the industry. However, you may not be able to buy a smartphone that charges faster than 150W outside China yet.
In the increasingly competitive smartphone market, people meticulously examine each and every feature that smartphones have to offer, from screen size to processing power, before choosing the best smartphone for them.
A relative newcomer to the ranks of sought-after features is fast charging. Technology now allows for a quick charge during the limited downtime we find in our busy day-to-day lives. Who wouldn’t want a smartphone that charges in minutes instead of hours?
If only it were that simple. Charging standards are a complicated mix of chemistry and physics, and each has its own sets of limitations, with incompatibility an issue as well. To make matters worse, smartphone manufacturers tend to slap confusing labels on their charging tech.
So how does fast charging work? Take a deep breath. Our guide to the most popular wireless charging standards on the market breaks them down to their most basic level. Here is everything you need to know about Samsung Adaptive Fast Charging, USB Power Delivery, Qualcomm Quick Charge, OnePlus Warp Charge, and more.
Before we dive into the weeds, let’s start with the fundamentals.
Every smartphone has a battery, and every battery delivers power in more or less the same way.
Cells consisting of two electrodes (one positive and one negative) and an electrolyte catalyze reactions that convert compounds into new substances. Over time, ions — atoms with too few or too many electrons — form in the electrodes, driving a flow of electrons to the battery’s negative outer terminal and supplying your phone with an electric charge.
In non-rechargeable batteries, those chemical reactions occur only once. But in the rechargeable lithium-ion batteries that power smartphones, the reactions are “reversible.” When the battery discharges, the chemical reaction produces electricity, and when the battery recharges, the chemical reactions absorb power.
So we’ve established how batteries charge and discharge. But to understand how fast charging works, you have to know a bit about something called a charge controller.
A quick side note:
Since we’ll be referring to volts, amps, and watts in the course of our discussion, here’s a refresher. Volts are a measure of voltage, amps are a measure of current, and watts are a measure of electrical power. A common analogy is a garden hose: Volts are equivalent to the water pressure in the hose; the current is equivalent to the flow rate; wattage is equivalent to the volume of the spout’s spray. Watts, then, are the product of volts and amps — volts (V) times amps (A) equals watts (W).
Greater current and higher voltages charge batteries faster, but there’s a limit to what they can take.
Smartphone batteries charge when a current passes through them. Greater current and higher voltages charge batteries faster, but there’s a limit to what they can take. The charge controller (IC) protects against dangerous spikes in current.
The controller chip regulates the overall flow of electricity into and out of the battery. Generally speaking, lithium-ion controllers define the current (in amps) at which the battery charges by measuring the battery’s cell current and voltage and then adjusting the current flowing in. Some use a DC-to-DC converter to change the input voltage, and fancier integrated circuits adjust the resistance between the charger input and the battery terminal to ramp the current flow up or down.
The amount of current the charge controller draws is generally dictated by the phone’s software.
Unless you’re still rocking a Palm Pilot from the early ’90s, chances are your smartphone recharges via a USB cable. There’s a really good reason: Besides the fact that USB cables are relatively easy to find these days, USB has a really robust, well-defined charging standard called the USB Power Delivery Specification.
The USB Implementers Forum specifies several types, one for each corresponding USB specification: USB 1.0, 2.0, 3.0/3.1/3.2, and USB4. USB 1.0 and 2.0 are increasingly rare and incompatible with our modern smartphones. By default, USB 3.0 ports push 5V/0.9A (4.5W).
But by upgrading to the physical USB-C connection (the oval-shaped reversible plug on newer smartphones) and USB 3.1 (and versions after it), PD can become a different animal altogether. It’s technically capable of carrying the USB 2.0 spec, but most manufacturers opt for the latest standards like USB 3.2 or USB4, which can potentially deliver a much higher voltage.
These later USB standards allow devices to take advantage of the USB Power Delivery (USB-PD) spec, which, as of USB-PD version 3.1, has a maximum power output of 48V (240W) charging, although devices tend to stick with the 20V/5A (100W) version for the time begin. Smartphones don’t draw that much power yet — manufacturers commonly stick with a lower amperage (like 3A), but it’s a boon for USB-C laptops like the MacBook Pro and Google Chromebook Pixel.
Slightly complicating things is the Battery Charging Specification, which deals specifically with power drawn from a USB port for charging. The most recent spec, Rev 1.2, defines three different sources of power: Standard downstream port (SDP), charging downstream port (CDP), and dedicated charging port (DCP). CDP, the spec in modern smartphones, laptops, and other hardware, can supply up to 1.5A.
Fully compliant smartphones and chargers respect the limits of USB 2.0 and BC1.2, but not all phones and chargers are compliant. That’s why, generally speaking, smartphones always default to the lowest charging speed.
The USB specs are more like guidelines than dictum, though. Fast-charging standards like Qualcomm’s Quick Charge and Samsung’s Adaptive Fast Charging may exceed the USB spec’s voltage parameters, but on purpose — that’s why your phone is able to recharge in minutes rather than hours.
USB-PD also only provides the power the device needs, so the same USB-PD charger could charge a smartphone at top speed but then also charge a laptop at its top speed.
Different manufacturers employ the USB-PD standard differently. Here’s how Apple and Google use it, for example.
Pros
Cons
The USB Power Delivery (USB-PD) standard was developed by the USB Implementers Forum (USB-IF), and it’s a standard that any manufacturer can use on any device with a USB port. It’s capable of delivering up to 100W, so it’s suitable for use with all kinds of devices beyond smartphones, including some laptops, provided they have a USB-C port. USB-PD brings other benefits, too. The direction of the power is not fixed, so you will find portable battery chargers, for example, that have a USB-C port that can be used both to charge another device or to charge the battery pack itself.
Apple iPhones from the iPhone 8 through the iPhone 12 models implement USB-PD, the same industry standard used by the iPad Pro, the 12-inch MacBook, Google’s Chromebook Pixel, and Lenovo’s X1 Carbon. Intercompatibility is its biggest advantage — USB-PD doesn’t require any special cables or wall adapters.
Supported outputs, cables, and adapters
You’ll have to shell out for accessories if you want to take advantage of the iPhone’s USB-PD compatibility because Apple hasn’t packed USB-C cables or adapters in iPhone boxes until recently. You’ll also need to buy a Lightning to USB-C cable that supports USB-PD — if you use a standard Lightning cable with a USB-C to USB-A adapter, the charger will default to the lowest wattage.
Here’s what Apple recommends:
Charging speed
No matter which USB-C charger you buy, you’ll have to put up with hard-coded safety limits in your iPhone. Fast charge kicks in when the capacity is between 0% and 79% but stops when it reaches 80%.
If you don’t mind forking over a few extra dollars for charging accessories, you get much faster charging than you would otherwise. The fast charging iPhones can charge from 0% to 50% in 30 minutes using USB-PD.
Pros
Cons
Every Google Pixel phone, from the original to the Pixel 4a, is capable of fast wired charging up to 18W using the USB-PD standard. It doesn’t require any special chargers or cables.
Supported outputs, cables, and adapters
You can use the charger and cable in the box with your Pixel phone to enjoy maximum charging speeds. If you go for third-party accessories, use any USB-C with USB 2.0 power adapters and cables. If you use a USB-C to USB-A cable, then it will charge your Pixel more slowly, regardless of the power adapter you connect to.
Charging speed
A Pixel phone can charge rapidly from 0% up to around 80% but will slow down beyond that point. You’ll find the same limitations with most phones.
Using the cable and 18W adapter supplied or any decent third-party one with a similar or higher rating, you can get seven hours of use from a 15-minute charge.
Pros
Cons
Chipmaker Qualcomm’s Quick Charge is one of the most widely implemented charging standards on the market. That’s no mistake — it’s an optional feature of Qualcomm system-on-chip technology, like the Snapdragon 855, 845, 835, 820, 620, 618, 617, 430, and others, which powers phones like the Samsung Galaxy S10, Google Pixel 3, and LG V40 ThinQ. But the technology isn’t tied to Qualcomm’s Snapdragon processors — any smartphone manufacturer is free to license Quick Charge’s power controller technology.
Tech specs and compatible adapters
Quick Charge achieves fast charging by upping the charging voltage, which in turn boosts the wattage. Announced in July 2020, Quick Charge 5 is the latest standard in the series, promising the ability to recharge phones to 50% in five minutes. While support is currently limited to recent phones such as the Samsung Galaxy S20, Quick Charge 4.0+ support is growing in popularity. You can find it in phones like the LG G8 ThinQ, Razer Phone 2, and Xiaomi Mi Mix 3, and it can deliver up to 27W of power.
Quick Charge 4 and newer have the added bonus of compatibility with USB-PD chargers, but Quick Charge 3.0 and older only work with Quick Charge-certified accessories. Still, Quick Charge’s ubiquity means there are plenty to choose from. Qualcomm’s website has a partial list of the most popular options.
Charging speed
Qualcomm claims that Quick Charge 5 can fully recharge smartphones in 15 minutes and take a phone to 50% in just five minutes.
In our testing, Quick Charge 4+ took the Razer Phone 2’s big 4,000mAh battery from 18% to 90% in just over an hour.
Safety measures
Quick Charge’s intelligent thermal balancing moves current via the coolest path, and device sensors monitor the case and connector temperatures to prevent overheating and short-circuiting.
Pros
Cons
Samsung’s Adaptive Fast Charging is exclusive to Galaxy devices. Unlike Quick Charge and other competing fast standards, it’s fully compatible with Exynos, the system-on-chip commonly found in international variants of Samsung’s devices.
Samsung introduced Super Fast Charging with the Samsung Galaxy S10 5G. This phone has a 4,500mAh battery and supports up to 25W charging with the USB Power Delivery 3.0 PPS (Programmable Power Supply) charging standard. The Samsung Galaxy Note 10 Plus hits even higher speeds, using Super Fast Charging 2.0 (as do later models such as the S20 and Note 20). However, to hit the fastest charging it’s capable of requires a special adapter with an unusual 10V and 4.5A rating to output 45W, which means it also requires a 5A cable.
Tech specs and compatible adapters
Samsung’s Adaptive Fast Charging has a theoretical peak of 9V/2A (18W), while Super Fast Charging has a peak of 10V/4.5A (45W) with a travel adapter and 25W when plugged into a normal charger. Both standards tend to be a bit more conservative in practice. Tapping into the highest speeds of either requires buying a certified charger, but most Samsung devices support either Quick Charge- or PPS-compatible accessories.
Charging speed
Samsung doesn’t publish charging times for Adaptive Fast Charging or Super Fast Charging. But in our testing, the Galaxy S8, which has a 3,000mAh battery, took about two hours to fully recharge. The Note 10 Plus took about one hour to fully recharge using the Super Fast Charging standard.
Safety measures
Adaptive Fast Charging technical stats are hard to come by, but anecdotally speaking, it’s on the conservative side. According to XDA’s detailed analysis of fast charging standards, the Galaxy S8 Plus maintains the coolest temperature of any fast-charging flagship on the market.
Pros
Cons
Motorola’s TurboPower standard, a tweaked version of Quick Charge 3.0, ships on Motorola devices like the Moto G Power 2021.
Tech specs and compatible adapters
TurboPower adapters come in three flavors: TurboPower 15, TurboPower 25, and TurboPower 30. The fastest, TurboPower 30, delivers 5V and up to 5.7A for roughly 28.5W of power.
There’s more to TurboPower than the charger. Motorola says it works with manufacturers to design custom batteries and that its power management software monitors battery state and health, then adjusts the incoming charge accordingly.
Much like Samsung Adaptive Fast Charge, you don’t need a TurboPower adapter in order to fast charge a TurboPower-equipped smartphone. Motorola’s charging standard is compatible with any Quick Charge 3.0 (or newer) adapter.
Charging speed
Motorola claims TurboPower 30 can deliver up to 15 hours of battery life in 15 minutes.
Safety measures
TurboPower’s thermal management hardware is designed to avoid charging slowdowns due to heat, Motorola says, and to maintain a steady and fast charging rate.
Pros
Cons
Shenzhen, China-based OnePlus licenses Warp Charge (originally called Dash Charge) from Oppo. It’s based on Oppo’s VOOC (Voltage Open Multi-Step Constant-Current Charging) system and is a headline feature in the OnePlus 6T and every other OnePlus phone back to the OnePlus 3. Oppo has also developed the much faster Super VOOC, but it’s only available in a handful of phones like the Oppo RX17 Pro.
Tech specs and compatible adapters
Warp Charge uses a special wall adapter that modulates the amperage in real-time. A microcontroller monitors charge level and syncs with the phone’s circuitry to regulate voltage and current, and a custom-designed cable delivers greater current while minimizing power fluctuations.
All this is proprietary. Warp Charge only works with OnePlus phones and compatible wall adapters and car chargers. Warp Charge-certified external batteries are hard to come by, and OnePlus’ fast charging standard doesn’t work with off-the-shelf USB cables — Warp Charge cables are slightly thicker to accommodate the extra voltage.
You won’t have to shell out extra if you buy a OnePlus phone, though. Every OnePlus smartphone comes with a Warp Charge-compatible wall adapter and charging cord.
Charging speed
We found that Warp Charge proved very effective when charging the OnePlus 9 Pro from zero to 100% in 31 minutes.
Oppo claims VOOC-enabled phones can charge to 75% in 30 minutes. When we charged the Super VOOC system with the Oppo RX17 Pro, it went from 0% to 40% in just 10 minutes.
Safety measures
Warp Charge is designed to dissipate heat quickly. Because the charger transforms the high voltage from the adapter’s power source into a lower voltage, most of the heat from the conversion never reaches the phone, and the consistent current reduces the potential for thermal throttling.
Warp Charge-compatible devices also have heat management and dissipation hardware that undergo a thorough five-point safety check.
Pros
Cons
SuperCharge, Chinese smartphone maker Huawei’s proprietary charging standard, is built into phones like the Huawei P40 Pro, Huawei P30 Pro, Huawei Mate 20 Pro, and the Huawei P10. It’s a bit like Quick Charge in that it uses higher-than-average voltages to achieve faster charging, but there’s slightly more to it than meets the eye.
Tech specs and compatible adapters
SuperCharge automatically adapts the incoming wall voltage and current based on the condition of the phone’s battery and the phone’s internal temperature. Older SuperCharge-compatible wall adapters and car chargers support three charging modes — 5V/2A, 4.5V/5A, and 5V/4.5A (up to 22.5W) — and use an in-charger chipset to regulate voltage, eliminating the need for heat-producing in-phone voltage transformation. The latest version offers 10V/4A for up to 40W.
Unlike proprietary charging standards like Pump Express and Dash Charge, Supercharge is compatible with USB-PD. That’s thanks to Huawei’s Smart Charge protocol, which intelligently switches between charging modes depending on which charging adapter is plugged in.
Tapping into Huawei’s SuperCharge technology requires buying a compatible wall adapter, but native compatibility with Qualcomm’s Quick Charge standard means any SuperCharge-compatible devices can take advantage of Quick Charge. Every SuperCharge-compatible smartphone comes with a compatible wall adapter.
Charging speed
Huawei’s latest charger claims to support SuperCharge speeds up to 135W, although it has not yet been released, and Huawei is not producing smartphones that can take anything more than around 44W.
Safety measures
The SuperCharge feature, along with Smart Charge, is available on Huawei devices. This unique tool can read whatever charger you’re using and pinpoint its optimal capacity. From there, the tool can modify the charger’s voltage as it needs.
Producers created SuperCharge with specific design features to carefully control higher currents. Some of those components include an eight-part cooling system and a lining that can keep devices 5 degrees Celsius cooler than other charging methods. Huawei Supercharge devices are built to last, and they’re thoroughly tested to ensure that products meet rigorous safety and performance standards. The company will test their devices in a year-long trial to observe their products under extreme conditions over time.
We know this is the understatement of the year, but technology is rapidly evolving. You can bet that fast charging will soon be the universal standard and will likely slowly replace average chargers over the next several years. Thanks to major growth in integrated circuitry, charge controllers, adapters, and cords, phones could soon potentially recharge over the span of just a few minutes instead of several hours. Early-model fast chargers recently gained popularity for their promises to increase your device’s portability and charge quickly.
As this technology evolves and becomes more accessible, fast charging will only continue to grow and improve with manufacturing. Current prototypes boast incredible speeds, such as Xiaomi’s claim that its HyperCharge technology can charge a 4,000mAh battery in eight minutes, but we’ll learn more about new standards as they are fully developed and appear in the market.
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