This is the Redmi 20,000mAh Power Bank. As the name implies, it comes with a 74Wh 3.7V 20,000mAh Li-Polymer battery which has a rated capacity of 12,000mah. The package is quite simple. You get the power bank, a micro USB charging cable and user manuals. The device comes with a power button, 4 led lights and dual input and dual output ports.
Just like all fast charging standards, USB PD implements a data protocol to communicate between the charger and phone. This negotiates the maximum tolerable power delivery for both the charger and
The Redmi 8 does support fast charging, however, it is not one of the faster-charging phones on the market. In our testing, the Redmi 8 took just over two hours to charge from 0 to 100%. While this is not the fastest charging time we’ve seen, it is still within the realm of what is considered “fast charging.”

The 25W charger that comes in the box of both the Note 10 and Note 10+ reaches 11V/2.25A, which equals 24.75W (you calculate wattage by multiplying the voltage by the amperage). The 45W Super Fast

In comparison, the Redmi Note 5 Pro, which packs in a larger 4,000mAh battery, takes just 2 hours and 10 minutes to charge from 10 percent to 100 percent with a fast charger (but the device doesn’t ship with a fast charger in the box). I took a note of the charging time over multiple charge cycles and the Honor 8X consistently took the same
I got 5v 2a charger (10w) with my phone. I see that it supports 18w. Does it mean that it supports Qualcomm quick charge 3.0? Did you guys got normal charger or fast one? Sent from my Redmi Note 8 using Tapatalk
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    • does redmi 8 support fast charging