Wireless charging has started to pick up lately. While more and more handset manufacturers are interested in this technology, other gadget manufacturers have started to produce wireless chargers of their own. The technology is still new and it will require a few years before a wireless charger will be in every home, but it has much potential as it eliminates wires and makes charging devices much easier.
Even so, there are a few wireless chargers available on the market today, and thanks to the rising interest of users, there will be more and more coming in the near future. But for now, we’ll have to make due with the ones that are available, so in order to find a good one that offers users what they need, we have seek the best wireless chargers available today.
How does wireless charging work?
If you think that wireless charging is a concept of the 21st century, then you will be amazed to know that it was envisioned in late 19th century by none other than the genius Nikola Tesla. Also, the main concept behind wireless charging has been used for many years and we have all benefited from it. In essence, the wireless charging is a scaled down version of any electrical transformer, in which a current is generated from a magnetic field.
In the base of the wireless charger, you can find an electrical coil in which electricity flows. As with all coils that have a current passing through them, this coil generates a magnetic field around it. In comparison with electrical transformers this coils is very small, thus, its magnetic field is also weak. This is the base of the wireless charger, and without the second part, which is found in the smartphone itself, it cannot work. Inside the smartphone (usually it is on the back cover) users can see a secondary coil that generates the current.
The principle is this: when a secondary coil is placed within the magnetic field of the primary coil, it will generate a current that will charge the battery of the device. The two inductive couplings work together to transfer power from the charging bed to the battery of your smartphone.
What types of wireless chargers can you find?
Like with many other products, wireless chargers come in different shapes and sizes, as well as with different technologies. The Qi standard for induction chargers was developed by the Wireless Power Consortium and it tries to standardize wireless charging and bring it to the same level with the MicroUSB standard. However, not all wireless chargers are manufactured to this standard, and therefore not all smartphones that have this feature are compatible with every wireless charger.
In terms of types of wireless chargers, you will see that some of them work by simply placing the smartphone on the charging pad, but there are also some models that require the user to use a case in which he must place the smartphone and then place it on the mat for charging. These devices are developed for smartphones that do not have wireless charging by default, and with the help of the customizred case or connector, they can benefit from this technology.
What are the best wireless chargers?
Some headset manufacturers are starting to implement this technology and provide wireless chargers for their users. However, keep in mind that not all smartphones can be charged with this technology. As you’ve seen before, the smartphone has a secondary inductive coupling inside it, so it can pick up the electromagnetic energy produced by the charging bed. So, if you want to charge your smartphone with a wireless charger, your phone must support this feature, otherwise, it won’t work.
Also, keep in mind that wireless chargers are not universal, as each one’s coil has a different resonance frequency for it to work, it requires the phone’s coil to have the same resonance frequenter. So, if you are interested in buying a wireless charger, you have to keep two things is mind: does your phone support wireless charging and are the two devices compatible. Some aftermarket wireless chargers can be upgraded to support more devices if needed, however, if you only have one smartphone and you want to buy a wireless charger, then you might be better off looking for wireless chargers from the same manufacturer.
The Powermat 3X is one of the wireless chargers we’ve seen. It is cmpatible with a number or Qi-enabled devices and its best feature is that it allows users to charge up do 3 devices at a time.
It features a slick body and it is quite easy to carry on trips, despite its length. Having top notch materials and a sturdy build also adds to the Powermat 3X’s value.
Price – $74.99
Although it won’t win any prizes for beauty, the Duracell myGrid is a pretty handy device. Although the process if charging your gadgets is not as easy as just laying them on the surface, it still gets the job done.
The user needs to plug in the special smartphone connectors or iPhone case and then lay it on the charging surface.
Price – $70 for iPhone kit and $29.99 for other smartphones
If you are interested in a small wireless charger, then the Anker is a top choice. Being able to charge multiple Qi-enabled devices, it is great for users that have a Nexus 4, LG Optimus Vu2, Nokia Lumia 920, HTC Droid DNA or HTC 8X.
Also, for those who want to buy a wireless charging case, they can also use this device on other smartphones, such as Samsung Galaxy S3, Galaxy Note 2, Nokia Lumia 820, or iPhone 4 – 4S – 3G.
Price – $49.99
Have a look at some more wireless chargers for your smartphone!
- Energizer Inductive Charger – $68
- WildCharge Pad – $49.99
- Duracell Powermat – $79
- Qi Wireless Charging Pad – $55
- Nokia Fatboy – $69
- Oregon Scientific Time & Wireless Charging Station – $130
- Nokia Wireless Charging Plate – $49
- LG WCP-300 – $65
- Nexus 4 Wireless Charger – $79.00
- Nokia Wireless Charging Stand – $99.99
- JBL PowerUp Wireless Charging Speaker – $299.00
While some of these chargers are only compatible with the same brand of smartphones (like the LG and Nokia wireless chargers) or with only a few models, like the Anker Qi-Enabled Wireless Charger which wireless charging for a number of devices, there are those that work with most other Qi-enabled smartphones. Nevertheless, this technology is something to look forward to and we hope that more smartphone manufacturers will start developing these awesome gadgets.