How does fast charging work? What chip is used?
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Fast charging technology allows devices to charge their batteries much quicker than standard charging methods. This is achieved by increasing the amount of power delivered to the battery, which is typically measured in watts (W). The key components and principles behind fast charging include: 1. Increased Power Delivery Fast charging increases the power (watts) delivered to the battery by either increasing the voltage (V), the current (A), or both. The formula for power is: P = V × I P = V × I Where: P P = Power (watts) V V = Voltage (volts) I I = Current (amperes) For example, a standard charger might deliver 5V/2A (10W), while a fast charger could deliver 9V/2A (18W) or even higher. 2. Communication Between Device and Charger Fast charging requires communication between the device and the charger to negotiate the appropriate voltage and current levels. This ensures the device receives the optimal charging rate without damaging the battery. Protocol...