The Xiaomi 50W Power Bank 20000mAh, sold by Xiaomi as the Mi 50W Power Bank 20000mAh (model PB200SZM), packs a 74Wh lithium-ion polymer battery behind three outputs: one two-way USB-C port that delivers up to 50W and accepts up to 45W, plus two USB-A ports. Xiaomi lists the latest MacBook Pro, Mi Notebook and Nintendo Switch among the high-power devices it supports, and it can charge three devices at the same time.
Table of Contents
Where the 50W Comes From on the Xiaomi 50W Power Bank 20000mAh
The 50W figure belongs to the single USB-C port, and Xiaomi’s own output table shows how it is reached: the top profile is 10V⎓5A, which needs a 5A-rated E-Marker cable (Xiaomi says the included cable supports currents up to 5A) and a device that requests that profile. The other USB-C profiles listed are 5V⎓3A, 9V⎓3A, 12V⎓3A, 15V⎓3A and 20V⎓2A.
For a laptop that charges at 20V, the useful number is therefore 20V⎓2A, which is 40W, or 45W where the laptop accepts 15V⎓3A. That is enough to top up most thin-and-light laptops and to slow the drain on a larger one under load, but it will not replace a 65W or 100W wall charger for a gaming laptop. Xiaomi does not name the charging protocols (PD, PPS or Quick Charge) on its specification page.
Two-Way USB-C and Recharge Time
The same USB-C port also recharges the Xiaomi 50W Power Bank 20000mAh, at up to 45W according to Xiaomi. Its input table lists 5V⎓3A, 9V⎓3A, 12V⎓3A, 15V⎓3A and 20V⎓2.25A. Xiaomi quotes about 4.5 hours for a full recharge using a 45W charger with the cable in the box, about 6.5 hours with an 18W charger, and about 11 hours with a basic 5V/2A charger. The charger itself is not in the box, so the charger you already own decides how quickly the Xiaomi 50W Power Bank 20000mAh refills overnight.
Real Capacity: 20,000mAh vs 12,000mAh
The 20,000mAh figure is measured at the cell’s 3.7V. Xiaomi also publishes a rated capacity of 12,000mAh at 5V/4A, which reflects what reaches your devices after voltage conversion and losses. That is normal for every power bank, and Xiaomi is open about it.
Xiaomi translates this into real charges: about 3.8 charges of an iPhone 12, 1.9 charges of a Mi 11 and 2.3 charges of a Nintendo Switch. It also says the Xiaomi 50W Power Bank 20000mAh charges a Mi 11 to 100% in 44 minutes. Your own phone’s battery size and charging speed will move these numbers up or down.
Three Ports, Low-Current Mode and Protection
The Xiaomi 50W Power Bank 20000mAh charges three devices at once through its USB-C port and two USB-A ports. A single USB-A port supports up to 9V⎓2.23A, 12V⎓1.67A or 10V⎓2.25A, while two USB-A ports used together drop to 5V⎓3A. When all three ports are busy, Xiaomi lists a combined 5V⎓4A at the lowest profile.
For small devices such as Bluetooth earbuds and smart bands, a low-current charging mode keeps the output from switching off too early. Xiaomi lists temperature protection, short-circuit protection, input and output over-voltage and over-current protection, overcharge and over-discharge protection, and a hardware-level over-current safeguard.
Flying With It
At 74Wh the Xiaomi 50W Power Bank 20000mAh is below the common 100Wh limit for carry-on power banks, and Xiaomi describes it as suitable for air travel. Power banks must go in hand luggage, not checked bags, and each airline sets its own rules, so check with your carrier before a flight.
Who This Is Not For
Skip the Xiaomi 50W Power Bank 20000mAh if you need to charge a gaming laptop at full speed, or if you want two USB-C ports: there is only one, and it is shared between input and output. Its 50W peak relies on the 10V⎓5A profile, so standard laptops see 40–45W at most.
Xiaomi rates operation between 5°C and 35°C, which matters in the UAE: do not leave it in a parked car or on a sunny dashboard. Xiaomi’s global specification page does not publish the weight or dimensions, and no wall charger is included.
Order the Xiaomi 50W Power Bank 20000mAh in the UAE
Delivery reaches every emirate within 3 business days, and it is free on orders from AED 300. Items that arrive defective or not as described can be returned within 14 days; please report any shipping damage within 48 hours. Your power bank comes with a 1-year warranty from Totot.
Technical Specifications
- Model: Mi 50W Power Bank 20000mAh, model PB200SZM
- Battery: Lithium-ion polymer, 74Wh, 3.7V 20,000mAh
- Rated capacity: 12,000mAh (5V/4A)
- Ports: 1 × USB-C (input and output), 2 × USB-A (output)
- Maximum output: 50W max (USB-C, 10V⎓5A)
- USB-C output: 5V⎓3A, 9V⎓3A, 10V⎓5A, 12V⎓3A, 15V⎓3A, 20V⎓2A
- USB-A output (single): 5V⎓3A, 9V⎓2.23A, 12V⎓1.67A, 10V⎓2.25A
- USB-A output (both): 5V⎓3A
- Input (USB-C): 5V⎓3A, 9V⎓3A, 12V⎓3A, 15V⎓3A, 20V⎓2.25A (45W max)
- Recharge time: About 4.5 h (45W charger), 6.5 h (18W charger), 11 h (5V/2A charger)
- Simultaneous charging: Up to 3 devices
- Low-current mode: Yes, for earbuds and smart bands
- Operating temperature: 5°C to 35°C
- Colour: Black
- In the box: Power bank, charging cable, user manual
- Not published: Weight, dimensions, charging protocol names
- Warranty: 1-year warranty from Totot
Specifications are taken from Xiaomi’s official global product and specification pages. Full details are published on the Mi 50W Power Bank 20000mAh specifications page on mi.com.
FAQ
Can the Xiaomi 50W Power Bank 20000mAh charge a laptop?
Yes. Xiaomi lists the latest MacBook Pro and Mi Notebook among supported devices; at 20V the USB-C port provides 20V⎓2A, which is 40W.
How many USB-C ports does the Xiaomi 50W Power Bank 20000mAh have?
1. The single USB-C port works as both input and output, alongside two USB-A outputs.
How many phone charges does it give?
3.8 charges of an iPhone 12 and 1.9 charges of a Mi 11, according to Xiaomi; results vary with your phone’s battery.
How long does it take to recharge?
4.5 hours, approximately, with a 45W charger and the included cable; about 6.5 hours with an 18W charger.
Is a wall charger included?
No. The box contains the power bank, a charging cable and the manual.
Can I take it on a plane?
Yes. It is rated at 74Wh, under the common 100Wh carry-on limit, and Xiaomi calls it suitable for air travel; keep it in hand luggage and check your airline’s rules.
How fast is delivery in the UAE?
Up to 3 business days to any emirate, free on orders from AED 300; the fee for smaller orders is shown at checkout.
Browse more in our Power Bank range. Every order from Totot carries a 1-year warranty covering manufacturing defects, with our 14-day return policy for defective or non-compliant items, and nationwide UAE delivery.
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