20000mAh power bank, portable charger for phones and tablets, 4U fast charging technology, compact size 145mm x 68mm x 22mm, available in red, blue, green, yellow, and black, with 2.1A output for efficient charging
20000mAh Power Bank with 4U Fast Charging for Phones and Tablets

This portable power bank is built around a substantial 20000mAh battery capacity, designed to provide multiple full charges for smartphones and tablets, making it a practical choice for travel, workdays, or situations where mains power is unavailable. It employs 4U fast charging technology, which works in conjunction with a 2.1A output port to deliver power efficiently to your connected devices. The unit is notably compact for its capacity, with dimensions of 145mm in length, 68mm in width, and 22mm in depth, contributing to its easy portability. Weighing 275 grams, it is lightweight enough to be carried comfortably. A selection of five colour finishes—red, blue, green, yellow, and black—offers a degree of personalisation.
Features and Construction

This power bank's design prioritises core functionality: delivering its rated capacity through a straightforward interface. The construction is defined by the provided physical and electrical specifications, which form the basis of its performance.
Material and Build
The source text specifies the product's technical performance, dimensions, and colours but does not detail the internal battery chemistry or external casing material. The build quality is inferred from the integration of the 20000mAh capacity into the given 145x68x22mm form factor. The product is presented in five distinct colour options, which relate to the external finish.
Size and Practical Fit
With measurements of 145mm by 68mm by 22mm, this power bank has a footprint similar to many modern smartphones but with greater thickness to accommodate its large battery. This size makes it easy to slip into a laptop bag, backpack, or even a larger coat pocket. The 275-gram weight adds noticeable heft but remains manageable for daily carry, balancing capacity with portability.
Uses and Placement

The high capacity and standard output make this charger suitable for a range of scenarios where reliable auxiliary power is needed, from brief outings to extended trips.
Event or Professional Use
For professionals working on-site, at events, or during long commutes, the 20000mAh capacity can serve as a dependable power source for a mobile phone, tablet, or other USB-powered devices throughout the day. The 2.1A output supports efficient charging, helping to keep devices operational. Its compact size allows it to be stored discreetly in a work bag or equipment case.
Everyday Home Use
In the home, this power bank acts as a convenient portable charging station, useful in rooms without easily accessible wall sockets or for family members sharing a single adapter. It can be pre-charged and left in a common area, ready to quickly top up a device's battery. The variety of colour choices also allows it to blend in or stand out as part of your home organisation.
Benefits and Buying Value

The value of this product stems from its stated capacity, output specifications, and physical design, which together address the fundamental need for portable power.
Reuse and Low Maintenance
As a rechargeable device, the power bank is designed for repeated use. Maintaining it involves following basic charging practices: using the 1.5A input for recharging and avoiding exposure to extreme temperatures or moisture, as would be prudent for any electronic device of this type. Its value is realised over many charge cycles, reducing reliance on finding available wall sockets.
Why Choose This Product
This power bank offers a clear, source-supported combination of a high 20000mAh capacity, a compact 145mm form factor, and a 2.1A output. It provides a factual alternative to lower-capacity chargers for users who need more extended power backup. The choice of five colours adds a simple aesthetic selection, while the 4U fast charging terminology indicates a focus on efficient power delivery. It is a straightforward solution based on the provided specifications.


