Ideal for quick-charging tablets, cell phones, laptops and other mobile devices. Charged a brand new 1S 3.7V 150mah from Horizon on my Macbook Pro. Don't charge anything outside of a fireproof charging bag. Syncing - Some charging cables for micro USB accessories can double as syncing cables. These cords will sync the data between two of your devices. The electric security systems of the wall charges may include protection against electrical discharge, overcharge, and short-circuit prevention that can blow the battery of your mobile device. In short, the brick-shaped device from Nekmit is a force to be reckoned with. The high power output, high speed of charging, and well-thought-out design make this model virtually one of a kind. To wrap things up, the iClever BoostCube charger provides you with an unrivaled amperage level of 4.8 Amps , a really impressive performance compared to other dual USB devices in the same price range.
Y-shaped USB 3.0 cable; with such a cable, a device can draw power from two USB ports simultaneously. Otherwise, connecting a device could cause problems with the host's internal power. USB devices are also required to automatically enter ultra low-power suspend mode when the USB host is suspended. Nevertheless, many USB host interfaces do not cut off the power supply to USB devices when they are suspended. The USB Power Delivery specification revision 3.0 defines a programmable power supply protocol that allows granular control over VBUS power in 20 mV steps to facilitate constant current or constant voltage charging. Revision 3.0 also adds extended configuration messages, fast role swap, and deprecates the BFSK protocol. Type-A and Type-B adaptors and cables are required for older devices to plug into USB-C hosts. Adapters and cables with a USB-C receptacle are not allowed. Developed at roughly the same time as the USB 3.1 specification, but distinct from it, the USB-C Specification 1.0 was finalized in August 2014 and defines a new small reversible-plug connector for USB devices. The USB-C plug connects to both hosts and devices, replacing various Type-A and Type-B connectors and cables with a standard meant to be future-proof.
This device allows you to use a single power outlet for one transformer and provides power to four or more USB ports. Different types of USB charging stations are available, so you will want to be sure to research features offered when considering a purchase. Are there chargers that can charge multiple devices at once? Some mains USB chargers have up to three USB ports built in to the plug. There are even chargers that are designed to charge two or more brands of phone at once. A wide variety of cellphone chargers and cradles are available for many different types of phones and many uses. Phone chargers exist for your home, car, or for use on the go. From the traditional corded car charger to the portable and efficient solar charger, there is a charger or cradle for every cellphone. Car chargers - A typical car charger is a corded device that plugs into the 12-volt DC adapter or cigarette lighter in your car. This type of charger draws power from your cars battery if the car is turned off, or from the cars alternator if the car is turned on, providing a reliable way to charge your smartphone on the go.
An increasing number of devices rely on USB chargers to draw power. Cell phones, tablets and game console controllers all connect and charge via USB connections. While it is likely that you have a collection of cables and USB plugs in a drawer, grabbing the closest charger might not be your best option. A group of electronics manufacturers introduced the technology in a bid to replace standards, including PS/2, Parallel and DB9 Serial connections. Today, there are various USB variants in use, which means that you first need to ensure that you choose the right standard from a selection that includes USB-A, USB-B, USB Type-C™, and both micro and mini versions. Furthermore, some USB chargers offer faster charging, thanks to a higher voltage or thicker lead, and some act as a hub, providing charging and connection for multiple devices. A power adapter that generates the 5 volt DC standard required by USB. The charger plugs into an AC outlet, and a USB cable plugs into the charger. USB ports on computers have an upper limit of 500 milliamps; however, USB chargers that come with cellphones and other devices handle one or more amps. The devices sense when they are connected to a computer versus the charger and regulate their current draw.
This is most common on laptops that come with their own proprietary charger — although a number of laptops can be charged either way, only the propriety charger tends to power up a laptop more quickly. The Samsung Notebook 9 is an example of that, as is the 2019 HP Envy 13. If you’re not sure exactly how to charge your laptop, check the manufacturer’s website, or look up a review of the system here at Digital Trends. In most cases, I ran at least two runs per charger per product and averaged them together if they came within a reasonable percentage of each other. The asterisk indicates dual-port chargers that were charging with a cable for the laptop and a cable for the iPhone simultaneously. They're made for the PS Vita (which apparently won't charge at all from the low amperage levels of data connections), but they'll work for any USB device.
Charging multiple devices reduces the charger's ability to Quick Charge as a whole. Use a 3.7V lithium battery, a cheap charge controller for the battery, and a boosting circuit to boost up the voltage to 5V. Total cost $10-20 and you'll be able to charge up a phone nearly all the way from a full battery. Now your solar usb charger is in fact finished, but it's not really beautiful. That's why I took out my sander and rounded all corners, took off the protection sheets from the solar panels and gave it a paint job. Because of the way that Quick Charge was created, it should work with just about any independent cord, which means just about any USB type, including micro and Type-C, but with small, but varied speed results. Whatever cord you choose, it will send the necessary power to your phone to have it charged in no time. I think you'll love this Anker USB wall charger for its quick charging and durable build, and Anker believes in it so much they back it with an 18-month guarantee. If you buy just one charger for all your needs, this is the one you want.
Although Apple's charger works just fine, you'll probably want to consider a third-party wall charger for the regular iPhone 11 or an earlier model. The regular iPhone 11 and the iPhone SE only come with a 5W USB-A charger, which is woefully inadequate for getting your device charged up quickly. And the current rumor mill seems to indicate that the iPhone 12 may not even ship with a charger in the box at all. USB Power Delivery is a relatively new fast charge standard that was introduced by the USB Implementers Forum, the creators of the USB standard. It is an industry-standard open specification that provides high-speed charging with variable voltage up to 20V using intelligent device negotiation up to 5A at 100W. Some of them have USB-A ports that can deliver the same voltage, while others feature one fast (2.4A) and one slow . If the device and the charger port both support the USB 2.0 standard (pretty much the least common denominator these days for entry-level Android smartphones), you can charge it at 1.5A/5V. Some consumer electronics, such as higher-end vape batteries that use the Evolv DNA chipset, can charge at 2A. A USB 3.0/3.1 charge port on one of these batteries can supply 3.0A/5V -- if the device supports it.
For example, if you are going white water rafting, you will want a charger that is waterproof, not water-resistant. If you are traveling in extreme temperatures, you will want to look for a charger that can withstand large temperature fluctuations. Its rugged design makes this a great choice for everyday use. It is water, dust, and shockproof and has a durable hard plastic housing that can withstand just about whatever life throws at you. It is also designed to protect your devices from overcharging, overheating, or short-circuiting, protecting you and your devices from any charging mishaps. Speaking of being in the wilderness, you do not have to hesitate to carry this charger with you everywhere you go. It is weather and water-resistant as well as dust and shockproof. The ABS plastic housing is designed to withstand everyday use, no matter what your day entails.
Unlike traditional USB chargers that plug into cigarette lighter sockets, this doesn't generate a bunch of RFI. Apparently Powerwerx provides proper filtering of the switching supply, unlike most manufacturers. The LA District Attorney's warning covers many attack vectors, because there's different ways that criminals can abuse USB wall chargers. You can also charge your two MacBooks simultaneously if you want to, and it charges both of them entirely in just two hours! The intelligent power allocation system is another feature that got my attention. When two devices are connected, it equally distributes the power, and when a single device is connected, it produces up to 60W power for a single device. Quntis has got Amazon’s Choice tag for the “iPhone 11 fast charger” term and there must be a reason for that, isn’t it?! Moreover, it comes with a USB-C to lightning cable which is 6 feet long and I think that’s more than enough.
The standard evolved quickly and is moving to version 5 at the time of this writing. For quick charging to work, usually you’ll need to use either the power adapter that came with the phone or an appropriately labeled third-party adapter. Quick Charge seems to be fading out of the market with the advent of USB Power Delivery , but both capabilities are still supported. It’s universal; you can put it in either way and it will work, unlike with USB, and like Apple’s Lightning connector. USB-C is also capable of twice the theoretical throughput of USB 3.0, and can output more power. Apple joined USB-C with USB 3.1 back in 2015 with its 12-inch MacBook and new MacBook Pros, and phones soon followed. But there can also be older-style USB ports that support the 3.1 standard. "Ports combine for simultaneous charging of up to five devices at a time from a single wall outlet." "This charger delivers up to 65W from the USB-C port, making it a great option for laptops or for quickly charging your phone." This model is even powerful enough to recharge laptops and tablets.
Logicfest January 13, 2014 Remember when cell phones all had their own, strange proprietary plugs? Thank goodness most have changed to allow for both charging through standard USB ports and almost all use standard USB cables for recharging. Even Apple products use standard USB plugs for all their cables, albeit with odd, proprietary connectors. For example, let’s say you’re using an old 5V/1A charger on a brand-spanking-new smartphone. You’re going to have less than stellar results there, because it’s going to charge the device much more slowly than the charger that came with the phone. Does that mean you can’t use a 5V/2.1A charger, or even a 9V/2A charger (in the case of USB-C)?
(See USB Battery Charging Specification, section 3.2.3.) The hardware test takes place before turning the data lines over to the USB transceiver, thus allowing a CDP to be detected before enumeration. On paper, the PD 4 marks off just about all of the checkboxes that one could want. However, there is no dedicated power button to turn the charger on or off. This means that you'll need to unplug it from the wall if you want to turn the charger off. Also, there is no official Quick Charge 3.0 support, and PowerIQ will likely do the job, but we still would've liked to see QC 3.0 onboard. This design looks extremely clean and will blend in rather nicely sitting next to your iMac or MacBook Pro. However, there are no USB-C ports, and the LED indicator light cannot be turned on, so you'll have to resort to unplugging the charger if the light is bothersome.
But there are plenty of USB chargers that don’t conform to these specs — mostly of the wall-wart variety. Apple’s iPad charger, for example, provides 2.1A at 5V; Amazon’s Kindle Fire charger outputs 1.8A; and many car chargers can output anything from 1A to 2.1A. Not all USB chargers, connectors, and cables are born equal. You’ve probably noticed that some wall chargers are stronger than others. Sometimes, one USB socket on a laptop is seemingly more powerful than the other. On some desktop PCs, even when they’re turned off, you can charge your smartphone via a USB socket. It turns out there’s a method to all this madness — but first, we have to explain how USB power actually works.
4-Port Charging for Smart Phone, iPad, or Tablet, very portable 34W USB AC Desktop Charger! The 34W 4-Port USB Charger can Charge 2 iPhones with each available 5V 1A ports and 2 iPads or tablets. Another way to tell a USB charging cable from a data transfer is to actually test the cable. Since the USB Implementers Forum does not have a standard, symbol, label, or icon to distinguish these cables, you actually have to use them to find out. Because the USB Implementers Forum doesn’t have any rule enforcing USB manufacturers to label or differentiate charge-only cables from data-transfer cables, it is almost impossible to tell them apart. However, there are still some proven ways to find out if a USB cable is charge-only or supports data transfer. All USB cables have the positive and negative wires but not all USB cables have the data exchange wires — this is why some cables only charges your smartphone. Lifepowr's $25 USB-C cable, called "the Beast,"is wrapped in a stainless steel housing for durability. It handles both high-speed data transfer -- USB 3.1 at up to 10Gbps -- and high-power charging but costs $32. I was terrified its flexing coils would catch an arm hair and give it a painful pluck, but I didn't have any problems.