Docooler Qi Wireless Charger Wireless Charging Receiver for Samsung Galaxy S4 i9500 (Black)

How to use it
Step 1: Open the back cover of Samsung Galaxy S4
Step 2: Stick the receiver card to the mobile phone's battery and the two protuberant touch points must touch the two recesses next to the battery
Step 3: Close the back cover
Step 4: Place the mobile phone onto the Qi wireless charging pad (not included)

Note: The receiver needs to work with the Qi wireless charging pad

Specification
Compatibility: For Samsung Galaxy S4
Color: Black
Input: DC5V, 1A
Output: DC 5V, 600mA
Power conversion efficiency: Up to 75%
Reaction temperature: -10 ~ 40 degrees Celsius
Working heat up range: below 20 degrees Celsius (ambient temperature below 25 degrees Celsius)
Working ambient humidity: below 80%
Working life: Charge & discharge above 4000 times
Receiver size: 8.5 * 4.5 * 0.05cm / 3.3 * 1.8 * 0.02in
Receiver weight: 3g / 0.1oz
Package size: 14 * 8.2 * 2.3cm / 5.5 * 3.2 * 0.9in
Package weight: 33g / 1.2oz

What is in the Box
1 * Qi Wireless Charging Receiver for S4