Amstar Qi Wireless Charger Universal Wireless Phone USB Charger Wireless Charging Pad for Samsung S8 S7 S6 Note 4 5 Lumia 950
About the QI wireless charging Working Principle
The QI Wireless charging device is divided into two parts. One is the QI wireless charging transmitter, one is the QI wireless charging receiver. They can’t be separated from each other. If your phone has a built-in QI wireless charging receiver, you just need to buy a QI wireless charging transmitter. If your phone has no built-in QI wireless charging receiver, then you also need to buy an external QI wireless charging receiver, so that your mobile phone can achieve QI wireless charging.
Input: DC4.3V-5.5V / 1.5-2A
Output: DC 5V± 0.1V / 500-1000mAh
Charging Power: 5W (max)
Conversion Efficiency: >73%
Transmission Distance: 10mm (max)
Some customers told us charging is very slow or unnormal. That is because they use low current wall chargers and adaptors. Please use 5V1.5A or 5V2A chargers or adaptors to connect the wireless charging pad.
Under the existing technical conditions, heating is a normal phenomenon when the charger is charging. No wireless charging can completely avoid the heating of the coil. All the products are tested strictly. Please use them without worry.
1 x Qi Wireless Charger Pad 1 x USB Cable 1 x User Manua