Has anyone used it to charge a laptop?

I have. I got a pretty decent charge from it

Can I use it in any part of the world?

Yes. I’ve taken it everywhere with me. Just make sure you have your adapter

How do you activate "always on" mode?

I own a previous Xiaomi 20,000mah power bank that had that mode to charge/ power devices that draw too little current to keep ordinary power banks on. I do not know if this power bank has that feature. On the older power bank I own always on mode is engaged by pressing the power button twice. All the charge indicator lights will blink. I think it stays on for two hours at a time in this mode. I found this mode invaluable for charging my juul vape pen. It would also come in handy for something like string lights. More power banks should really include this feature.

Does this power bank support pass through charging. Meaning I can charge the power bank and draw power from it at the same time?

I believe so. The charge lasts a really long time.

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Xiaomi - 20000mAh Redmi Power Bank, Fast Charging, 18W Two-Way Fast Charging, Dual Input and Output Ports, 74Wh High Capacity, Power Bank Compatible with iPhone, Samsung, Android Devices

Xiaomi - 20000mAh Redmi Power Bank, Fast Charging, 18W Two-Way Fast Charging, Dual Input and Output Ports, 74Wh High Capacity, Power Bank Compatible with iPhone, Samsung, Android Devices

Product ID: 639195587

Details

Battery capacity
20000 Milliamp
Brand
Xiaomi
Colour
Black
Connector type
2 USB-A 1 1
Special features
Fast Charging

⚡18W two-way fast charging

🔋20000mAh ultra-high capacity

🔌Dual input/output ports

¥4828

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Description

⚡ Stay charged, stay ahead — power that keeps pace with your hustle!

SLEEK PORTABLE - Lightweight 180g design fits your busy lifestyle without weighing you down.
SMART SAFETY SHIELD - Advanced circuit chips protect against overcharge, overheating, and short circuits.
POWER THROUGH YOUR DAY - Massive 20000mAh capacity charges 4 phones fully—stay unstoppable.
SPEED MEETS EFFICIENCY - 18W fast charging on each port means less wait, more go.
UNIVERSAL COMPATIBILITY - Dual USB-A outputs plus USB-C & Micro-USB inputs for all your devices.

The Xiaomi Redmi 20000mAh Power Bank delivers massive 74Wh capacity with dual USB-A outputs and dual inputs (USB-C & Micro-USB), supporting 18W two-way fast charging. Equipped with intelligent charging controllers and advanced safety chips, it ensures reliable, efficient, and safe power delivery compatible with iPhone, Samsung, and most Android devices. Lightweight and portable, it’s designed for professionals who demand power on the go.

Specifications

ASIN	B08LN1YV1X
Amperage	3.6 Amps
Antenna Location	Iphone,Tablets
Battery Capacity	20000 Milliamp Hours
Battery Cell Type	Lithium Polymer
Battery Charge Time	3 Hours
Battery Weight	180 Grams
Best Sellers Rank	#14,881 in Mobile Phones & Communication Products ( See Top 100 in Mobile Phones & Communication Products ) #263 in Mobile Phone Portable Power Banks
Brand	Xiaomi
Color	Black
Compatible Devices	Cámara, Smartphone
Compatible Phone Models	Smart phone, iphone
Connector Type	2 USB-A, 1 Micro-USB 1 USB-C
Customer Reviews	3.9 3.9 out of 5 stars (402)
Item Dimensions	10 x 150 x 15 centimeters
Item Weight	150 Grams
Manufacturer	XIAOMI
Mfr Part Number	0190997000210
Model Number	POWER_BANK
Number of Batteries	1 Lithium Polymer batteries required.
Number of Ports	2
Other Special Features of the Product	Fast Charging
Output Current	3.6 Amps
Power Source	Corded Electric
UPC	190997000210
Unit Count	1 Count
Voltage	5.1 Volts

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¥4828

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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