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20000mAh Redmi 18W Fast Charge Power Bank Hands-On
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20000mAh Redmi 18W Fast Charge Power Bank Hands-On

by Vyncent ChanFebruary 26, 2020
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With the recent political turmoil happening in Malaysia, Xiaomi Malaysia went out to Istana Negara

and the Prime Minister’s Office of Malaysia to support members of the press by providing them with free 20000mAh Redmi 18W Fast Charge Power Banks.

We were quite intrigued by the power bank too, so we went out to purchase one for ourselves as well.

Out of the box

The packaging makes it very obvious that it’s a Redmi product. It’s quite simple, and you get the essentials. The Chinese variant doesn’t come with a USB cable, but the 20000mAh Redmi 18W Fast Charge Power Bank offered in Malaysia officially comes with a short microUSB cable. A USB-C cable would have been preferable since most of Xiaomi and Redmi’s lineups are now on USB-C, but hey, I guess Redmi’s priority is to make sure you have a cable to charge it.

20000mAh Redmi 18W Fast Charge Power Bank Hands-On 23

Let’s start off by saying the 20000mAh Redmi 18W Fast Charge Power Bank isn’t exactly a looker. The plastic enclosure doesn’t attempt to convince you that it is anything other than plastic, with a matte finish on the top and bottom surfaces while the sides are glossy. It’s also a rather huge brick, comparable to some laptop’s power adapters, but it is a 20 000 mAh power bank, after all.

20000 mAh Redmi Power Bank

It’s one chonky power bank!

On the right side there’s a power button, and over here on the top you find the input and output ports. Interestingly Xiaomi decided to support both USB-C and microUSB inputs here to reduce the need to go hunt for cables when you finally need to recharge the 20000mAh Redmi 18W Fast Charge Power Bank.

While the panels are relatively bare, I would say it bodes well for customizability. Time to get some stickers to personalize it, I guess?

Specifications

Capacity:20 000 mAh (3.7V, 74 WHr)
Battery type:Li-Po battery
Supported input(s):USB-C, microUSB
Up to [email protected] (10.5W), [email protected] (18.9W), [email protected] (18W)
Supported output(s):2 x USB-A
Up to [email protected] (12.24W), [email protected] (18W), [email protected] (18W)
Both ports in use: up to [email protected] total (12.24W)
Safety features:Temperature protection
Input overvoltage protection
Output overvoltage protection
Output overcurrent protection
Input anti-reverse protection
Battery over-charge/over-discharge protection
Short circuit protection
Reset protection
Dimensions:154 x 73.6 x 27.3 mm
Weight:446 grams

Quite a performer

Straight out of the box, the 20000mAh Redmi 18W Fast Charge Power Bank came with around 50% charge, which is indicated by the LEDs on the edge with all the input and output ports. So we immediately put it to the test with my POCOPHONE F1 and Mi 9, both of which support Quick Charge 3.0 up to 18W charging.

20000mAh Redmi 18W Fast Charge Power Bank Hands-On 24

For the POCOPHONE F1, I managed to clock 16.34W, and the device also detected the charging speed to be “quick charge”. There’s no mention of Quick Charge 3.0 compatibility for the Redmi Power Bank though.

20000mAh Redmi 18W Fast Charge Power Bank Hands-On 25

Meanwhile for the Mi 9, it went slightly above 18W, at 18.191W. Now the next step is to use both of its ports at the same time.

20000mAh Redmi 18W Fast Charge Power Bank Hands-On 26

With both a Mi 8 and POCOPHONE F1 connected, the recorded amount of power delivered to the POCOPHONE F1 was 8.684W, which is almost exactly on the money. Redmi claims a total output of 5.1V/3.6A (18.36W) when both of the 20000mAh Redmi 18W Fast Charge Power Bank’s ports are used simultaneously, so we are quite near half of that.

20000mAh Redmi 18W Fast Charge Power Bank Hands-On 27

To test the promise of fast charging input as well, I plugged the Redmi Power Bank into the POCOPHONE F1’s 18W Quick Charge 3.0 power adapter. And lo and behold, I got 16.965W going into the power bank, which is a respectable figure indeed. We didn’t test how long it takes to fully charge the powerbank, but it should take anywhere between 4 to 6 hours.

TL;DR?

One DeviceMi 9: 18.191W
POCOPHONE F1: 16.34W
Two Devices~17.868W
Recharging (input)16.965W (with 18W Quick Charge 3.0 power adapter)

Conclusion

The 20000mAh Redmi 18W Fast Charge Power Bank is available at varying prices in the market, but we got ours at RM99. Xiaomi Malaysia only officially offer the Redmi Power Bank at their physical stores. The support for fast charging both in and out of the power bank is definitely nice to have, and should provide a good option for a quick top-up of your smartphone battery.

I am not so happy with the weight and size, but you are getting enough power to juice up your smartphone for a weekend with the Redmi Power Bank. No wall sockets required. I hope our media friends over at Putrajaya and Istana Negara won’t have to really be on standby for a whole week to cover the news though…

About The Author
Vyncent Chan
Technology enthusiast, casual gamer, pharmacy graduate. Strongly opposes proprietary standards and always on the look out for incredible bang-for-buck.

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