Rocketek USB Quick Charge 2 device 3.0 Fast Mobile Phone Charger for iPhone Samsung S6 7 Huawei LG xiaomi etc QC 2.0 Suitable | Мобильные

Rocketek Dual USB  Smart Wall Charger is perfect for today's multi-device world.

QC 3.0 charge Faster
- QC 3.0 Compatible with QC 2.0 / 1.0, Charges compatible devices up to 80% faster than a normal charger, Speed up to 3.6 - 6.5 2.4A / 9 - 12V 1.5A / 6.5 - 9V 2A
- Charges all Non-QC 3.0 & QC2.0 Devices their notmal speed up to 5V/2.1A

Quick Charge Devices Include:
for Galaxy S7/S6/Edge/Edge Plus
for Galaxy Note 4/5/Edge
for LG G4
for LG G Flex2
for Nexus 6
for HTC One A9/M9
for Droid Turbo
for Xperia Z3/Z3 Compact/Z3 Tablet Compact/Z4 Tablet
and many more (consult your device's technical specs to confirm compatibility)

Specifications:
Input: AC 100~240V 50/60Hz
Smart Output : 5V 2.1A
QC 3.0 Output: 3.6 - 6.5V 2.4 A  /  9 -12V 1.5A  / 6.5 - 9V  2A (Output will according device to change)
Size: 6.8x5x1.9(cm)

Devices with smart-IC control: The device displays the max output 3.4A. It doesn't mean that output is 3.4A allways , which is based on the voltage and current that can be tolerated by the charged device to intelligently control the device On the basis of the most efficient charging.

Why can't cellphone charges reach 2.4A or higher?

1: the cell phone doesn't support any fast charging technology;
2: mobile phone doesn't support Qualcomm's fast charging technology
3: the charging current will be restricted by the quality of charging wire
4: the battery capacity is different, the output current will be different,

Mobile phone support other types of fast charging technology, the current mainstream fast charging technology has: Qualcomm's QC, MediaTek PEP, OPPO VOOC;fast charging standards are many, different standards are incompatible with each other.

High-current fast charge standard must choose high-quality USB data cable to meet the needs of current transmission, some of the max load line charge on the 1A or 2A also can't  support the maximum output current charger

QC2.0 is 9V/12V two-speed adjustment; QC3.0 upgrade to 3.6V-12V stepless adjustment, this advantage is based on the phone's load and heat automatically adjust the voltage to improve the charging efficiency. So the value of the voltage and current detection will be different because of different power, such as low power may be after the 2.4A, after the high power is 1A