Redmi 20000mAh 18W Fast Charging Power Bank
৳ 1,990
- Type: Portable Mobile Powers
- Mainly Compatible with: Apple,iPad,LG,MP3,MP4,SAMSUNG
- Battery Type: Li-Polymer Battery
- Capacity (mAh): 20000mAh
Redmi 20000mAh 18W Fast Charging Power Bank
The Redmi 20000mAh 18W Fast Charging Power Bank is designed for users who need reliable portable power for smartphones and other compatible USB devices. With a large 20,000mAh battery, 18W fast charging support, two USB-A output ports, and both Micro-USB and USB-C input options, it offers a practical combination of capacity and connectivity. The official model number is PB200LZM, and Xiaomi lists its battery as a lithium-ion polymer battery with a total battery power of 74Wh at 3.7V.

A high-capacity power bank can be useful when a smartphone needs power several times during a busy day. It can also be handy during travel, commuting, office work, university sessions, or other situations where a wall socket isn’t always nearby. The 20,000mAh capacity gives this Redmi model considerably more stored battery capacity than many compact power banks.
The charging system is another important part of the product. The power bank supports output profiles of 5V/2.1A, 9V/2.1A, and 12V/1.5A, while its single-port output can reach up to 18W under supported conditions. When both USB-A ports are being used, Xiaomi specifies a combined output of 5.1V/3.6A.
The power bank also provides flexibility when it needs to be recharged. Its input section includes both Micro-USB and USB-C, so users can use a compatible cable according to what they already have available. The package includes the power bank, an instruction manual, and a power cable.
For buyers searching for a dependable portable battery in Bangladesh, Buy Redmi 20000mAh 18W Fast Charging Power Bank from Gears Wheel at a low price in Bangladesh is a relevant search term for this product. The focus should remain on the actual specifications, charging capabilities, compatibility, and everyday usability of the power bank.
The combination of high capacity and dual USB-A output makes the device particularly suitable for people who carry multiple electronics. For example, a smartphone and wireless earbuds can be connected at the same time. Likewise, two compatible smartphones can be charged together, with the total output managed according to the manufacturer’s specifications.
It is also important to understand the difference between nominal battery capacity and rated output capacity. Xiaomi lists the cell capacity as 20,000mAh, while the rated capacity is 12,000mAh at 5.1V/3.6A. These figures describe different aspects of the battery and shouldn’t be treated as contradictory.
Redmi 20000mAh Power Bank Specifications
The following table summarizes the key specifications of the Redmi 20000mAh 18W Fast Charging Power Bank.
| Specification | Details |
| Brand | Redmi |
| Model | PB200LZM |
| Battery capacity | 20,000mAh |
| Battery type | Lithium-ion polymer |
| Battery power | 74Wh / 3.7V / 20,000mAh |
| Rated capacity | 12,000mAh at 5.1V/3.6A |
| Input ports | Micro-USB and USB-C |
| Output ports | 2 × USB-A |
| Maximum single-port output | Up to 18W |
| Output profiles | 5V/2.1A, 9V/2.1A, 12V/1.5A |
| Dual-port output | 5.1V/3.6A |
| Dimensions | 154 × 73.6 × 27.3mm |
| Package | Power bank, manual, power cable |
These specifications come from Xiaomi’s official product documentation.

20,000mAh High-Capacity Battery
The biggest feature of this power bank is its 20,000mAh battery capacity. This gives users a substantial amount of stored energy for portable charging.
Compared with smaller power banks, a 20,000mAh model is intended for extended use. It can provide multiple charging cycles depending on the connected phone’s battery size, charging efficiency, battery condition, and usage pattern.
Xiaomi identifies the battery as a lithium-ion polymer battery and gives its battery power as 74Wh at 3.7V. The rated output capacity is listed separately at 12,000mAh under specified conditions.
This distinction is useful when comparing power banks. The advertised cell capacity represents the battery cells’ nominal capacity. During actual charging, energy conversion and voltage regulation mean the amount delivered to a smartphone will be different.
Therefore, the 20,000mAh rating shouldn’t be interpreted as a promise that a phone will receive exactly 20,000mAh. Actual charging results depend on several technical factors.
18W Fast Charging Support
The 18W fast charging capability is another major feature of the Redmi power bank.
Xiaomi specifies several output profiles, including 5V/2.1A, 9V/2.1A, and 12V/1.5A. For a single output port, the specifications list up to 5.1V/2.4A, 9V/2A, or 12V/1.5A.
This means compatible devices can use higher charging power than standard low-power USB charging. However, the actual charging speed depends on the smartphone, cable, charging protocol, battery level, and other conditions.
For instance, a phone that supports a lower charging rate won’t automatically charge at 18W. The charging system communicates with the connected device and uses a supported power profile.
That makes the 18W rating most useful when paired with a compatible smartphone and suitable cable.
Two USB-A Output Ports
The power bank has two USB-A output ports, allowing users to connect two compatible USB devices.
This setup is convenient for people who carry more than one electronic device. A smartphone can be charged alongside wireless earbuds, another smartphone, a smart band, or another compatible USB-powered accessory.
When two ports are used together, Xiaomi specifies a combined output of 5.1V/3.6A. Therefore, dual-port charging doesn’t mean that both ports independently provide the maximum single-port output at the same time.
This is an important specification to understand because charging performance changes depending on whether one or two devices are connected.
USB-C and Micro-USB Input
The Redmi power bank includes USB-C and Micro-USB input ports.
This dual-input design provides additional cable flexibility. Users who already own a compatible USB-C cable can use it to recharge the power bank. Likewise, a Micro-USB cable can be used with the corresponding input.
The USB-C port on this model is specified as an input rather than a USB-C output. The charging outputs are provided through the two USB-A ports.
This distinction matters when connecting newer USB-C devices. The power bank’s USB-C connector is intended for recharging the power bank itself.
Portable Design and Dimensions
The power bank measures 154 × 73.6 × 27.3mm.
Because it contains a 20,000mAh battery, it is larger than many compact power banks. That’s a natural trade-off for higher capacity.
The size makes it suitable for backpacks, laptop bags, travel bags, and other carrying cases. It may be less convenient for users who specifically want an extremely small power bank, but the larger capacity is useful for extended charging needs.
The power bank also includes a battery-check function. This allows users to check the remaining battery status before connecting another device.
Charging Multiple Devices
One of the practical benefits of the Redmi power bank is its ability to charge two compatible devices simultaneously.
For example, users can connect:
- A smartphone and wireless earbuds
- Two smartphones
- A smartphone and smart band
- A smartphone and another USB-powered accessory
When multiple devices are connected, the available output is shared according to the specified dual-port output.
This makes the power bank useful for people who carry several devices during the day. Instead of carrying separate portable batteries, one high-capacity unit can provide power for multiple USB devices.

Low-Current Charging for Accessories
The Redmi power bank is also designed for smaller electronic accessories that don’t require the same charging power as smartphones.
This can include compatible Bluetooth accessories and smart wearable devices. The low-current charging function makes the power bank more versatile for everyday electronics.
As a result, it isn’t limited to smartphone charging. Users can also use it as a portable power source for compatible smaller USB devices.
Safety and Proper Use
Portable batteries require appropriate handling because they contain lithium-based battery cells. Xiaomi provides troubleshooting and usage guidance for this model.
For example, Xiaomi recommends using a suitable charging cable and checking the charging ports if charging becomes slow. Dust or debris inside the ports can affect charging performance. Xiaomi also notes that extreme temperatures can affect charging speed.
The same guidance recommends charging connected devices within an ambient temperature range of 0°C to 35°C when troubleshooting slow charging.
Users should also avoid using or charging the power bank when it has become excessively hot. Xiaomi’s troubleshooting guidance recommends allowing an overheated unit to return to a suitable temperature before charging or use.
Everyday Uses in Bangladesh
A 20,000mAh power bank can be useful in many everyday situations.
For commuters, it provides portable backup when traveling between home, school, university, or work. During longer journeys, it can keep a smartphone available for calls, messaging, navigation, and other normal activities.
It can also be useful during travel. A smartphone is often used heavily for maps, photography, communication, tickets, and online services. Having a large-capacity power bank reduces dependence on finding an available wall socket.
For office users, the dual USB-A ports can help charge multiple accessories during a busy day. Likewise, students can carry it in a backpack for extended study sessions.
The practical value comes from its combination of 20,000mAh capacity, 18W charging support, dual USB-A outputs, and dual input options.
Who Can Use This Redmi Power Bank?
The product is suited to users who need substantial portable charging capacity.
It can be particularly relevant for:
- Smartphone users with heavy daily usage
- Frequent commuters
- Travelers
- University students
- Office users
- People carrying multiple USB devices
- Users who prefer a 20,000mAh battery capacity
- People who need both USB-C and Micro-USB input options
At the same time, users looking for a very compact power bank may prefer a smaller-capacity model. The 20,000mAh capacity naturally comes with a larger physical size.
Why the 18W Redmi Power Bank Stands Out
The Redmi 20000mAh 18W Fast Charging Power Bank combines several useful features in one unit.
Its 20,000mAh nominal battery capacity provides substantial stored energy. The 18W maximum single-port charging support allows compatible devices to charge faster than basic USB charging. Meanwhile, two USB-A outputs make simultaneous charging possible.
The inclusion of both USB-C and Micro-USB input ports adds another layer of convenience. Furthermore, the lithium-ion polymer battery and documented charging specifications provide a clear technical profile for buyers.
For users comparing portable chargers, the specifications are straightforward:
| Feature | Redmi PB200LZM |
| Capacity | 20,000mAh |
| Fast charging | Up to 18W |
| Output | 2 × USB-A |
| Input | USB-C + Micro-USB |
| Battery | Lithium-ion polymer |
| Rated capacity | 12,000mAh at 5.1V/3.6A |
| Size | 154 × 73.6 × 27.3mm |
The official specifications confirm the core features listed above.

Frequently Asked Questions
- What is the model number of the Redmi 20000mAh power bank?
The model number is PB200LZM. Xiaomi lists this model across its official product documentation.
- Does the Redmi power bank support 18W fast charging?
Yes. The power bank supports up to 18W single-port output under compatible charging conditions.
- How many output ports does it have?
It has two USB-A output ports. Both can be used simultaneously with compatible devices.
- Does it have a USB-C port?
Yes. It has a USB-C input port. It also has a Micro-USB input. The USB-C port on this model is specified for input rather than USB-C output.
- What is the actual rated capacity?
Xiaomi lists a rated capacity of 12,000mAh at 5.1V/3.6A, while the battery’s nominal cell capacity is 20,000mAh at 3.7V.
- Can it charge two devices at the same time?
Yes. The two USB-A output ports support simultaneous charging. With both ports in use, Xiaomi specifies a combined output of 5.1V/3.6A.
- Can it charge wireless earbuds?
Compatible USB-charging wireless earbuds can be charged. The power bank also supports use with lower-power accessories.
- How big is the Redmi 20000mAh power bank?
Its dimensions are 154 × 73.6 × 27.3mm.
- What type of battery does it use?
The power bank uses a lithium-ion polymer battery. Xiaomi specifies its battery power as 74Wh at 3.7V and 20,000mAh.
- Why might charging become slower?
Charging speed can be affected by the cable, connected device, battery level, charging protocol, debris in the ports, and temperature. Xiaomi recommends checking the cable and ports and avoiding extreme temperatures when troubleshooting charging issues.
- What comes inside the package?
The official specifications list the 20,000mAh Redmi Fast Charge Power Bank, an instruction manual, and a power cable.
- Is the Redmi 20000mAh power bank suitable for travel?
Its 20,000mAh capacity makes it useful for extended portable charging. However, airline rules for power banks can vary by airline and route, so travelers should check the applicable current requirements before flying.
The Redmi 20000mAh 18W Fast Charging Power Bank offers a practical balance of battery capacity, charging performance, and connectivity. Its 20,000mAh nominal capacity provides substantial portable power, while 18W charging support can deliver faster charging to compatible devices. Two USB-A outputs make simultaneous charging possible, and USB-C plus Micro-USB inputs provide additional flexibility.
For shoppers searching for this specific model in Bangladesh, Buy Redmi 20000mAh 18W Fast Charging Power Bank from Gears Wheel at a low price in Bangladesh naturally describes the product and its intended search context. The PB200LZM remains a straightforward option for users who need a high-capacity portable charger for smartphones and other compatible USB devices.
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Delivery & Shipping Process:
- Cash on delivery within Dhaka (Tk 70 delivery charge.
- 130 taka delivery charge outside Dhaka must be paid in advance, the price of the products is cash on delivery.
- Order processing may take up to 24 hours.
- Delivery may take 24-36 hours within Dhaka.
- Delivery may take 2-4 days outside Dhaka.
- The customer can check the product in front of the delivery person by talking to the seller.
- Unboxing video must be kept for warranty claim.
Warranty & Return-Refund Policy
Warranty:
- We usually have a 3-day replacement warranty.
- In case of any problem from the manufacture, please contact us immediately, within 3 days. After 3 days warranty cannot be claimed under any circumstances.
- For warranty claim the product should be brought to our shop along with the cash memo, product packaging. Or you can send it by delivery man, the customer will have to bear the delivery charge.
- 3-4 weeks wait for brand warranty.
- Product quality depends on the manufacturer. No affiliation with gearswheel. You cannot return a product if you do not like the quality of the product.
Return Policy:
- If the product is not genuine or original. You must inform us within 24 hours.
- If you receive a physically damaged product after opening the package. (must send unboxing video)
- If the product is different from the product ordered. (wrong product is)
- If you change your mind/ordered in wrong order.(Product must be sealed.Product cannot be returned after opening
- 3-4 weeks wait for brand warranty.
- You will be responsible for paying your own shipping costs to return your item. Shipping costs are non-refundable, if you receive a refund, return shipping costs will be deducted from your refund.
Refund Policy:
- If we are unable to deliver the product you ordered (if out of stock)
- If you change your mind and inform us before the goods are delivered.
- It will take 7-14 working days for the refund to be successful.
- Once we receive your item, we will inspect it and notify you that we have received your returned item. We will notify you of the status of your return immediately after inspecting the item.
- The refund period may vary depending on your card issuer's policy.
- You will be responsible for paying your own shipping costs to return your item. Shipping costs are non-refundable, if you receive a refund, return shipping costs will be deducted from your refund.
How To Do Warranty Claim and Get Refund?
- You can message us on Facebook.
- You can contact us on WhatsApp (01946004706).
- You can call directly (during office hours)
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