Also marked "fast charging", other people's mobile phones are full in 30 minutes, but yours takes 1 hour? The problem may not be with the phone itself, but because you ignore the matching of the charging ecosystem. Real fast charging is the result of the tripartite collaboration of mobile phones, chargers, and data cables, and one is indispensable.

4 core determinants of fast charging speed

1. Protocol handshake failure (the most common culprit)

• Phenomenon: Using a non-original or inferior charging head, the phone is charged in 5V/2A (10W) basic mode by default.

• Principle: Fast charging requires the mobile phone and the charger to successfully "shake hands" through specific protocols (such as PD, QC, VOOC, etc.) to trigger the high-voltage/high-current mode.

• Example:

• Charging an Android phone that supports QC with an Apple PD charger may not be fast charging.

• Charging a Xiaomi phone with a Huawei SCP charger can only trigger the universal PD protocol.

2. Data lines become bottlenecks

• Current bottleneck: Ordinary data cables only support 3A current and cannot meet ultra-high power requirements such as 120W (20V/6A).

• Protocol identification pins: Some fast charging cables have built-in E-Marker chips to identify the transmission power (e.g., USB-C to C cables need to support 5A).

• Loss problem: The internal resistance of inferior cables is large, and the voltage/current actually reaching the mobile phone is greatly attenuated.

3. The charger has inflated power or insufficient performance

• Inflated power: Inferior chargers are nominally 30W, but the actual peak is only 18W.

• Poor heat dissipation: Overheating can cause the charger to actively reduce power (e.g., halving power at temperature > 45°C).

4. Mobile status restrictions

• High temperature protection: The phone heats up while playing, and the system automatically limits the speed.

• Battery health: The charging speed decreases after the battery ages (health <80%).

• System optimization: Different brands adjust charging strategies differently (such as dynamic speed adjustment for night charging).

Solution:

1. Confirm the highest protocol supported by your phone

• Apple users: iPhone 8 and above support PD protocol (up to about 27W).

• Android users: Check the official website parameters (such as Xiaomi 120W, Huawei 100W, Samsung 45W).

• Check the current status: Download "Ampere" for Android and "CoconutBattery" for iOS to check the real-time power.

2. Select the charger with "protocol matching"

• Priority Original: The original charger protocol compatibility is the most perfect.

• Third-party options:

• Multi-protocol compatibility (e.g., PD3.0/QC4+/PPS support).

• Look for brand certifications (such as Apple MFi, Huawei UFCS).

3. Replace high-quality cables

• Look at the specifications: Choose a cable that supports 5A/6A high current.

• USB-C cable: Look for the E-Marker chip (supports 20V/5A).

• Lightning cable: Look for MFi authentication (avoid the "This accessory is not supported" prompt).

• Measurement loss: The voltage drop of high-quality cables is <0.5V (inferior wires may > 1V).

4. Optimize charging habits

• Clean the background: Close power-hungry apps like games/videos while charging.

• Remove the phone case: Avoid heat build-up during charging that triggers the temperature control speed limit.

• Use a radiator: The game party can be equipped with a semiconductor cooling back clip to maintain fast charging.

• Wireless fast charging: After the popularization of the Qi2 protocol, 15W+ wireless fast charging will be realized.

• Gallium nitride (GaN): The third-generation semiconductor material makes chargers smaller and more efficient.

• Unified fast charging protocol: China has launched the UFCS integrated fast charging protocol to reduce compatibility issues.