Since wireless charging has been introduced and mass-marketed by iPhone and Samsung, it becomes almost necessary features for flagship on 2018. It offers convenience because no more tangled cable or turn-on the lights at night just to plug your charger. Your phone must have a receiver to be able to use wireless charging. Wireless charger will then transfer the energy from your electric socket via electromagnetic induction. Although the term “wireless charging” as it is not appropriate since you still have to place your phone on wireless charging pad, it is more appealing than inductive charging.
Battery health is the maximum charge capacity the battery can take. It will degrade over time when you put your phone into discharging and charging cycle. It usually will last you enough for 2 years or less depending on your usage. Most smartphones have 500 cycle. For iPhone, you can check your battery health on Setting > Battery > Battery Health. If it is less than 80%, I recommend you to change your battery. For Android, there is no built-in solution, you have to install AccuBattery app. The first time you use the app will show nothing, since it needs to record your data. Try to charge your phone fully and use it normally. It will show up later.
Is it safe to wireless charge your phone?
It is okay to use wireless charger everyday. However, there are things that you need to be sure of when using it. Since electromagnetic induction also generates heat, it might be harmful for your battery if you leave it on wireless charger too long. Remember that heat is the enemy of battery. If battery gets hot all the time, it may affect the battery health. Here’s several tips on how to wireless charge your phone safely.
Don’t use unknown wireless charger
Apple, luckily, is using the same standard wireless charging with other manufacturers called Qi Wireless Charger. You can check the list of certified charger on their website and here are our top 5 best wireless charger for 2018. However, Apple has their own frequency used for wireless charging, that is narrower than Android devices. I have both Samsung Wireless Charger and Mophie Stream Pad Mini. When I place my iPhone on Samsung charger, it will take 1-2 seconds before my iPhone starts charging. Using Mophie, which is one of the Apple partner for wireless charger, it takes less than a second for my phone to starts charging. This concludes our first tips.
Using standardized and recommended wireless charger from manufacturer or the one that has temperature control.
Don’t keep your phone fully charged
Before you throw tantrum to me, listen carefully first. Most smartphone batteries are using Li-Ion not Nickel-based battery anymore. You might know about the myth that battery has memories and if you don’t charge until 100%, the battery cannot retain that 100% charge anymore or sometimes called “battery drop”. This is not true with Li-Ion battery. Instead, keeping it charged 100% might reduce your battery health. Li-Ion battery works based on ion movement from positive to negative electrodes. If you keep the charge on 100%, there will be little to no movement at all which might make the electrodes die, thus degrading your battery. You shouldn’t make your battery dead to 0%. Since there will be no movement between the electrodes also. What you need to do instead. It does not necessarily linked directly with wireless charger, but with normal charging this tips can be applied also.
Keep the charge between 40% – 80% if possible, only go to 100% when necessary
Don’t make your battery gets too hot
As I mentioned above, batteries are not good with handling hot. They can degrade faster if they get too hot. If you are using unknown wireless charger, chances are it doesn’t have temperature control. Then it will make your phone heated when you are charging. Good wireless charger these days even integrate fans inside to help cooling down process. Samsung and Anker are some of the manufacturers that uses fans for their wireless charging pad, since faster wireless charging also generates more heat. Samsung Galaxy Note 9 for example can go up to 12W for faster wireless charging, compared to iPhone that only has 7.5W. Not only charging, but don’t leave your phone for too long under heat sources (e.g. inside a car, at the beach). It will still affect your battery health in a long term.
Keep your phone cool
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