For Samsung Galaxy J3 J5 J7 2017 2016 Wireless Charger QI

Mobile phone chargers can be roughly divided into travel chargers, cradle chargers and maintenance chargers. Generally, users mainly contact the first two. And the most sold on the market is the travel charger.
There are also various forms of travel chargers. The common ones are the cheap duck egg-shaped miniature travel charger, the ordinary desktop card board charger, and the high-end desktop charger with crystal display. Mobile phone charger, also known as: mobile phone adapter, is actually composed of a stable power supply (mainly regulated power supply, providing stable working voltage and sufficient current) plus necessary control circuits such as constant current, voltage limiting, and time limiting. The output parameters marked on the charger (referring to the line charger): such as output 5.0V/1A, output 5.0V/1500mA-11200... refers to the relevant parameters of the internal regulated power supply. Understand this truth, you will know that a (good quality) mobile phone charger is easy to change into a good quality regulated power supply.
The chargers of lithium-ion (li-ion) batteries commonly used in mobile phones use a constant-current and voltage-limited charging system, and the charging current is generally around C2—that is, the charging rate is two hours. For example, a 500mAh is charged at 250mA in about two hours 4. Constant voltage charging after 2V.
The lion is not suitable for the -DV/DT detection fast charging method used by the NIMH advanced fast charger, because the lion has a strict limit on the charging current. Lithium ion (Li+) is very active, and high current charging is prone to danger. The general user contacts are mainly the first two. The most popular travel chargers on the market are travel chargers. There are also various forms of travel chargers. The common ones include cheap duck-egg miniature travel chargers, ordinary desktop card board chargers, and high-end desktop chargers with LCD display. device. In view of the fact that most mobile phone users are non-professional users, the chargers basically have the function of full self-stop, and most of the travel chargers are fast chargers, and the charging time is about 1-3 hours. Many chargers on the market advertise that they are controlled by microcomputers, including some very cheap duck-egg-type miniature travel chargers. In fact, strictly analyzed from the charging circuit, only a small number of chargers can be truly controlled by microcomputers (MCU control). .
Some manufacturers claim to be "microcomputer control" when they use integrated blocks on the charging circuit. In fact, many low-cost design integrated blocks are cheap op amp integrated blocks, while some dedicated charging control integrated blocks have higher unit prices. , generally used in relatively high-end or brand-name chargers. So we can't trust the so-called microcomputer control, especially the cheap products. Many products are similar in appearance but have very different internal circuits, and their performance is also very different.

For Samsung Galaxy J3 J5 J7 2017 2016 Wireless Charger QI Receiver Charging Pad Dock Power Cover Case Mobile Phone Accessory

Friends, please pay attention to this, if your phone has wireless charging function, you do not need to install the receiver.
      If the phone itself does not have wireless function, the phone must be installed with a receiver to generate the wireless charging function. Please select the correct phone model to order according to the correct option. Please indicate the type of USB port of your mobile phone. If you think that installing the receiver is troublesome, please do not order, please do not open a dispute. If you have any questions, please write to us. The customer service will respond to your question within 24 hours, and any problem can be effectively resolved through communication. Please cooperate with each other happily. Look forward to working with you sincerely.
Please read it carefully, friend,
First: Please charge the socket on the wall, please do not use the computer to charge, it will cause wireless fast charge damage.
Second: Please do not use thick shell, thick leather case, charge together, it will cause wireless charging, no response, bad contact, damage to your wireless fast charge.
NOTED:

1.Accept Dropshipping, and we will DO NOT put any invoices, QR codes, promotions or brand name logo in the shipment,So Dont worry,Just buy it, we will do anything well for you .

2.We are guarantee each device be tested rigorous before shipped out, SO all SZLHRSD products can guarantee 100% high quality before sent out, If not , !!! So dont worry the quality. Cheapest price , High Quality !! Order Soon !!!!

Feature:
Wireless Charging: Just place down your phone or any QI-enabled devices on qi charger. Tips: If your phone case is over 5mm, it would be better to take off it before charging. Thick case will stop qi wireless charging stand working;

​Intelligent Display: Multi-colored LED lights indicates charging status. If the device is not properly aligned the built-in LED indicator light will change from blue to green to alert you;​

​Ergonomic Design: Holder stand design keep playing or reading on your phone while charging and answer a call without having to unplug. Portable, the bracket design makes it easy to see the screen;

​2-Coils Support: Built-in 2 coils offer you much wider charging area, you can place your phone with a free position. No need for perfect alignment. Tips: We strongly recommend using a 2A adapter for the best results, not using power source from computer, because the output from computer is only 500-800mA;

​Noted: Compatiable for all smartphone that support wireless charger; Before you place the orders please confirm your phone support wireless charger,if not ,you need to buy another wireless receiver for wireless charger.

Package Included:
1 x Qi Wireless Charging Pad
1 x English manual
1 x micro usb cable