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What is a Wireless Charger and How Does It Work?
Today, Tesla is recognised as a company that is a pioneer in fully electric vehicles as well as solar and clean energy. But many of you won’t know that this company is named after the genius inventor and scientist, Nikola Tesla. Tesla, discovered in the late 19th century that electricity can also be transferred through air just like electromagnetic waves, but his work remained unfulfilled till after his sudden demise in 1943 at the age of 86 years.
Now, seven decades after his death the world has started to learn about the practical aspects of wireless transfer of energy – such as the wireless charger. As the name suggests, a wireless charger is a charging device which can transfer energy to a receiving device without any cables or wires. Though, wireless chargers used for charging mobile phones are in direct physical contact with the device, but there are devices in the making which can transfer wireless energy a few feet apart and are being used in sectors like healthcare and automotive industry. This path-breaking technology can change the world in a few decades, or possibly even in the next few years, so don’t be surprised if you hear about cars which can be charged wirelessly in the near future.
But, how does this wireless technology work? Tesla demonstrated that electricity can be transmitted between a transmitter and a receiver by creating a magnetic field between the two circuits. In case of wireless chargers for mobile phones, the pads use tightly coupled electromagnetic charging which work on a principle of physics which states that a time-varying magnetic field creates a current in a closed loop of wire. In simple words, there are copper coils inside these wireless charging pads which induce current in the wires and this current travels through the surface of the pad and is used in charging a device wirelessly.
Advantages and Disadvantages of a Wireless Charger
Though wireless chargers make your life simpler and help you get rid of those dangling charger wires, there are a few flipsides as well. First, let’s talk about the benefits of using a wireless charger:
With wireless technology, you can use the phone port for other purposes, apart from getting rid of the cables. You can charge multiple devices at once with larger charging pads and the wireless charging also improves the battery life of your phone. Some wireless chargers are built like a stand, so you can watch your favourite videos while the phone is being charged. New models of many cars have pre-fitted wireless charging docks so that you can enjoy handsfree convenience. You can also customise your furniture to fit the charging pad and use it while you rest or sleep. Wireless chargers are also good for the environment as the charging pods are more durable than the cables, hence generate less e-waste and trash.
The major cons of using a wireless charger are – wireless chargers are costlier as compared to traditional chargers. Currently only a few high-end smartphone models have the wireless charging functionality. If your phone supports wireless charging at 5W then a full charge may take 30–80% longer as compared to a cable charger. Moreover, while you can continue using your phone white it’s getting charged through a cable, it’s practically impossible to do so with a wireless charger as tapping the phone can misalign the wireless charging. And, a wireless charging pad for mobile phones is not as portable as a cable charger which you can easily fit into a small sling bag or a waist pouch.
Best Wireless Chargers
The phones that support wireless charging include iPhone 8, 8 Plus, X, XS, XS Max and XR; Samsung Galaxy Note 5 and higher, Samsung S6 and higher, Google Pixel 3, XL and Google Nexus 4 and higher and a few high-end models of LG, Sony, Motorola and Nokia Lumia. We have researched to select the 10 best wireless chargers which are compatible with many of these phones, most of them are budget-friendly and you can order them online.
Belkin Boost Up Wireless Charging Stand
Belkin Boost Up 10W Wireless Charging Stand allows you to watch movies and videos while the charging stand is juicing up your phone. This Belkin charger provides one of the fastest charging to Qi enabled smartphones and can give charging speed for Apple iPhone at 7.5W, Samsung at 9W and for other Qi devices like Sony and LG phones, it gives 10W power. The round pad allows you to charge your phone in portrait or landscape mode on the non-slip surface and the AC adapter has a 5 feet long cable included. The wireless charger has multiple safety features like foreign object detection, LED indicators and overheating protection. The dimensions of the charger are 9.1 x 9.9 x 12.3 cm and it weighs only 186 gm which makes it easy to carry and this wireless charging stand by Belkin can be purchased from Amazon for ₹ 15,330.00.
Anker PowerWave 15 with Quick Charge 3.0
Anker wireless charger has USB type-C port and it gives up to 15W fast and wireless charging. For iPhone it provides 7.5W fast charge, for Samsung Galaxy S9 and higher models 10W, and for other Qi certified phones it gives quick charge 3.0 of 15W. The Anker PowerWave 15 Wireless Charger comes without an AC adapter and its dimensions are 8.8 x 8.8 x 1.1 cm while it weighs just 109 gm. The Anker wireless charger looks professional with the metal shielding and the rubber pad with an LED display. The non-slip charging surface can charge through up to 5 mm thick mobile cases and this Anker wireless charger is available on Amazon for ₹ 9,298.00.
Air 600 Wireless Qi Charger
Amkette is an Indian company which started as a computer storage device maker in 1986 and after 30 years, it’s making headphones, earphones, speakers, mobile gaming accessories, IT peripherals to electronic accessories. The Air 600 Wireless Qi Charger is one of the most inexpensive and popular chargers with its 3 layers of protection from overheating, overcharging and short circuit. Moreover, it gives you the flexibility to charge your mobile in flat, landscape or portrait mode. The inbuilt LED light not only shows the charging status, but also enhances the aesthetic appeal of the charger. The charger provides up to 10W QC 3.0 fast charging and is compatible with most high-end mobile phones. The Air 600 Wireless Qi Charger comes with a 1.2 m long cord, weighs 250 gm and its dimensions are 14.5 × 8.5 × 3.5 cm. The gadget comes with a 1-year manufacturing warranty and is available for ₹ 1,599.00 on Amkette.
Raegr Arc 200 (10W)
The USP of this wireless charger by Raegr is the temperature and fireproof ABS material it’s made of, which is a great security feature. Moreover, the intelligent protect technology provides short circuit prevention and also controls overheating by keeping the charger cool which gives more efficient charging. Once you keep your phone for charging, the green LED indicator will blink for a few seconds which shows that the device is getting ready. If the green light keeps on blinking even after a while then you should check for some foreign object which may be disrupting the charging (can be coins, metal objects, bank cards, etc.). The Qi certified Raegr Arc 200 provides 10W power for compatible Samsung phones, 7.5W output for iPhones and 5W for other Qi enabled phones and gadgets. The device comes with 2-year limited warranty and can be ordered from Flipkart for ₹ 1,199.00.
Aukey 10W Wireless Charger
The Aukey 10W Wireless Charging Pad can fast charge your compatible Samsung smartphones at 10W (you have to use Samsung’s fast charging wall charger or Quick Charge 2.0/3.0 charger), iPhones at 7.5W and other Qi compatible devices at standard 5W charging. The charging surface is made of soft TPU material and the anti-slip rubber pads give a sturdy grip to even the glass phone covers. The black rubber will easily match with your work desk or kitchen stand and the LED indicator adds up to the overall appeal of this charger. The zinc alloy base powered by a 3-coil design gives you the freedom to keep your phone the way you want as it picks the charge easily. The Aukey 10W Wireless Charger is listed for ₹ 3,199.00 on Flipkart.
Stuffcool Qi Certified (10W) Wireless Charge Stand
A home grown company founded in 2007, Stuffcool manufactures mobile cases, screen protectors, cables, power banks, audio devices, accessories and chargers. The wireless charge stand can be used to charge the phone either in a vertical or horizontal position and you can enjoy videos, movies, etc. in the meanwhile. The charger is equipped with a type-C input port and a cable (1 meter) is included in the box to handle higher power input and protect from short circuit. The double copper coils ensure that the charger is not overheated and can charge your phone even with a case of thickness up to 6 mm. The smart LED indicator emits different lights for different scenarios, like when it’s charging, if a foreign object is detected, on full charge and when the mobile is not placed correctly. You can own this cool looking charger by ordering it for ₹ 2,999.00 on Stuffcool.
Portronics Toucharge X 10W Wireless Charging Pad
Portronics is also an Indian brand which was established in 2008 in New Delhi and today has a whole lot of electronic items in its bouquet which include power banks, speakers, laptop accessories, chargers, etc. Portronics Toucharge X 10W Wireless Charging Pad has a different and stylish look than most of its competitors and the sleek and small charging pad (16.7 x 13.6 x 3 cm) can give up to 10W output and works with compatible Samsung, iPhones and Qi enabled devices. The pad has safety features like over-voltage, over-heating and current surge. This wireless charger by Portronics can be ordered for ₹ 975.00 from Paytm Mall.
Belkin Boost 5W Wireless Charging Stand (White)
Belkin, a US company was founded in 1983 in California and they are involved in the manufacturing of world-class screen protectors, cables, adapters, accessories and chargers. The Belkin Boost 5W Wireless Charging Stand has an inbuilt temperature control system which provides safety from over-heating, over-charging and short circuits. It supports Qi enabled devices up to 5W and Qi transmitting coils can work with plastic cases of up to 3 mm thickness. The LED light indicates if the phone is charging optimally and no foreign object is interfering. You can purchase the Belkin Boost 5W Wireless Charging Stand from Tata CLiQ for ₹ 2,999.00.
Google Pixel Stand GA00507-IN Wireless Charging Pad (White)
This wireless charger stand by Google was released alongside the Google Pixel 3 phone and has specific features compatible with Google Pixel phones. The pill shaped back and the anti-slippery platform holds the Google Pixel phone firmly while it’s getting charged and can convert your phone into a digital photo frame at the same time. The Google Pixel Stand Wireless Charging Pad provides 10W fast charging to your pixel phone, comes with a 1-year warranty and is available on Tata CliQ for ₹ 2,999.00.
AT&T 5W Qi-Certified Wireless Fast Charge Charging Pad
Qi-certified by the WPC (Wireless Power Consortium), this fast charge wireless pad by AT&T provides up to 5W fast charge on Qi-certified smart phones. This wireless charger works with compatible Samsung, iPhones and phones of other brands. The LED light indicator will turn green when the phone is charging optimally and the elegant design looks good on your desk or living room. The sleek charger has dimensions of 2.03 x 10.41 x 12.95 cm, weighs just 109 gm and will fully charge your smart phone in about 3–4 hours with a compatible wall adapter. You can own this AT&T WC50 5W Wireless Charger for ₹ 1,799.00 from Flipkart.
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Evaluate a Wireless Charger Carefully Before Buying
Once you have made up your mind to buy a wireless charger you should definitely evaluate the available choices carefully before buying the one which suits your requirement perfectly. Charging time, device compatibility, ease-of-use, brand and budget could be some of the factors which will impact your decision. We hope this BP Guide would have helped you in understanding and evaluating the top wireless charger options currently available in the market. Stay connected with us for more such engaging content.