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)?
If you plan on exclusively using solar power and you are carrying more than one rechargeable device, you will need some serious power. Choose a solar charger or power bank that has multiple solar panels that can produce enough power to charge all of your devices. Like all solar panels, the panels on solar USB chargers come in different sizes and have different charging capabilities. The solar power banks that only have one solar panel are meant to be charged with an AC adaptor and only have a solar panel as a means to charge it during an emergency. This type of charger is perfectly adequate for short trips where you can charge the battery before leaving, then use solar power to maintain the charge. The bigger models that have multiple mini solar panels are a much better choice for prolonged solar charging because they can absorb more light and produce more electricity. The battery pack can be charged with electricity or solar power, so you have options for both sunny and rainy days. It has two USB charging ports that allow simultaneous charging. It also has an LED flashlight and compass attached, making this a great multipurpose tool for wilderness adventures.
The size, shape, price, and environmental mission are otherwise respectable, but for sheer power-per-dollar, stick with our pick. Apple’s 20W USB-C Power Adapter is larger than Anker and Aukey’s 20W chargers, costs more, and doesn’t have folding prongs. We don’t see any reason to choose it over the models we recommend. The PA-D2 measures about 2.5 by 2.3 by 1.1 inches, meaning it’s small enough for you to carry it in a bag or purse without your really noticing it’s there. Its ports are stacked horizontally on the face opposite the folding prongs. The RP-PC132 is the smallest dual-port USB-A and USB-C charger we’ve tested, and in our tests it performed exactly as promised. You can expect an iPhone XS to charge to about 35% in a half hour on the USB-A port and closer to 50% on the USB-C port. Aukey’s one-port charger offers full-speed charging at an affordable price.
While most modern-day mobile devices charge over USB-C, there are still many gadgets, including budget Android tablets and Raspberry Pis older than the Pi 4, that utilize micro USB. Though you can buy a USB-C to micro USB adapter, many of us have drawers full of USB-A to micro USB or USB-A to USB-C cables. So it can be pretty useful to have a USB-C Laptop Charger like the RAVPower Pioneer RP-PC133, which has a secondary Type-A port. The marketplace is flooded with GaN-powered USB-C laptop chargers with wattages that go all the way up to 100 watts . In order to help you find the best USB-C laptop chargers, we’ve tested the latest GaN-powered models from major brands such as Anker, Aukey, IOGear and RAVPower. A two-port charger that is cheaper than buying two single adaptors, this double-Quick Charge 3.0 wall charger is perfect for charging multiple devices from a single socket. The Fusion 5K from Anker is of interest not only because it’s a capable mains-operated wall charger for up to two USB devices, but because it also serves as a 5,000mAh power bank.
Stand-By UPS systems provides basic battery backup and surge protection. Digital Trends helps readers keep tabs on the fast-paced world of tech with all the latest news, fun product reviews, insightful editorials, and one-of-a-kind sneak peeks. Most households have more cords than they can keep track of. Instead of daisy-chaining surge protectors and playing find-an-outlet, you could just buy a single USB charging station. Simplifying your charging situation is easy with these USB charging stations. Cameron Summerson is the Editor in Chief ofReview Geekand serves as an Editorial Advisor for How-To Geek and LifeSavvy.
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.
Incompatibilities between competitive systems exist, willingly or by oversight. To support charging and data communication when using the DCP, a Y-shaped cable is offered that connects to the original USB port for data streaming and to the DCP port to satisfy charging needs. Standard A and B USB plugs, as illustrated in Figure 1, feature four pins and a shield. Pin 1 delivers +5VDC and pin 4 forms the ground that also connects to the shield. The two shorter pins, 2 and 3, are marked D- and D+ and carry data. When charging a battery, these pins have no other function than to negotiate current. With 5V and 500mA available on version USB 1.0 and 2.0, and 900mA on USB 3.0, the USB can charge a small single-cell Li-ion pack.
It’s not just looks though, with each port capable of pumping out 2.4 amps of juice. Aside from that function, if it’s to be a good USB charger it also has to, well, charge stuff. This model has you covered there too, with a very useful 4.8 amps of power split equally between the two ports. You’ve also got the built in overcharge, short circuit and over heating protection you would expect from a high-end manufacturer like Ainope. One word of warning – they are a very popular subcategory of electrical device. We’ve found no less than 15 high-quality designs of car chargers, each one bringing something a little different to the party. Furthermore, type C is available with the PD and without the PD functionality. Increase in the demand for type C for device charging in order to cater to the demand for a fast charging facility is driving the USB charger market. The USB type C charger is emerging as a golden standard for quick charging and the simultaneous transfer of video and data. Also, the USB charger market is seeing a transition to multi-port variants, for the added convenience of charging multiple devices at one go.
Increasingly, it can charge things likeBluetooth wireless earbuds, mice, Nintendo game controllers andMiFi portable hotspots. The introduction of three ports translates into a larger footprint. But thankfully, it fits insides most charging cradles without hampering any functionality. It also packs a tiny LED indicator to show the status of the connection. And unless you do not already own a compatible charging wire, you will have to buy one should you want to buy this charger. The USB-A port bundles PowerIQ 2.0, Anker’s in-house technology that is designed to provide the fastest possible charge.
The dangers are similar to normal USB hazards, but with the added risk element of using them whilst on the road. There is the potential for an incorrect charge to be applied to your device. This could result in a number of issues, including battery and device damage and the risk of overheating, fire and explosion. Whilst the USB 3.0 is currently the most common, it is predicted that the new USB-C connector could eventually replace this. The USB-C was made widely available from 2015, and is now common on new model smartphones as well as some laptops. The intention is that it will completely replace all types of USB as the USB-C is a replacement for both ends of the cable.