Users of the Xiaomi ecosystem are used to the fact that the company regularly updates the line of portable batteries, and the question of the emergence of the fourth generation in the Power Bank series is becoming more urgent. The market for external batteries is saturated, but it is Mi Power Bank that often sets the standards for the ratio of price, quality and technology.
The new model is expected to receive significant improvements in energy efficiency and charge speed to keep up with flagship smartphones, which have already learned to gain full capacity in 15-20 minutes. Engineers are working to reduce physical dimensions while maintaining high capacity, which is the main technical complexity in today's environment. Let's take a look at all known facts, technical forecasts and possible timing of the device on sale.
It is important to understand that the development cycle of such devices takes considerable time, especially given the need to certify new fast-charging protocols, which is why rumors about the release date can vary, and they should be treated with a dose of healthy skepticism, waiting for official press releases.
Analysis of the current situation in the external battery market
The portable energy segment is booming with the power consumption of mobile processors and high-frequency screens. Xiaomi Power Bank 3 and its variations with Wireless Charging have proven to be reliable satellites, but the technology is not standing still. Consumers are demanding not just “charge the phone”, but to do it as quickly and safely as possible without carrying around half a kilogram of bricks.
Competitors are already adopting graphene power and active cooling, so the fourth generation is expected to take a technological leap.If Xiaomi wants to maintain its lead, they need to offer something unique, such as support for (two-way) ultra-fast charging above 100 watts. This would be a serious argument for laptop and tablet owners who also need a mobile power source.
⚠️ Warning: Don't trust marketplace sellers who already offer "pre-orders" for a non-existent model at a suspiciously low price, often disguised as refurbished batteries or cheap copies with understated real capacity.
And it's also worth noting that there's a growing trend towards sustainability that's driven by recyclable materials in the case, and it's likely that the Mi Power Bank 4 will have a case made of biodegradable plastic or recycled aluminum, which is a great marketing ploy, but the big question is, when exactly will we see these changes?
Expected technical characteristics of the novelty
According to patents and line-up logic, Xiaomi Power Bank 4 should be supported by the Xiaomi HyperCharge protocol, which will allow compatible smartphones to charge at the maximum speed they can, with 10,000, 20,000 and possibly 30,000 mAh, and the latter can be focused on charging laptops via a USB-C port with support for Power Delivery 3.1.
The new series is likely to feature an advanced power management chip that prevents overheating and power surges, which is critical to keeping your main device battery healthy, and there are rumors of a higher contrast digital display to accurately display residual percentage of charge.
- 🔋 Support for fast charging up to 120 watts for instant power recharge.
- 🛡️ Twelve-time short circuit and overheating protection system.
- 📱 Simultaneous charging of up to three devices without loss of efficiency.
- 🌐 Compatibility with protocols QC4+, PD3.0 and proprietary standards of other brands.
Another expected feature is low-precision charging for wearable electronics.Low Current mode allows for secure charging TWS-headphones and fitness bracelets without damaging their low-power batteries. In previous models, this required twice pressing the button, but in the fourth version, this process can be automated.
Technical details of the control chip
Predicted release dates and sales regions
The question of when it will be released remains the most painful one: Xiaomi will usually announce new accessories either along with the flagship Mi or Xiaomi Number Series smartphones, or at separate ecosystem presentations. Given the cycle of release of previous models, it is logical to expect the launch of Power Bank 4 at the end of this or the beginning of the next calendar year.
The first product is usually received by customers in China, the global version can be delayed for 2-4 months due to certification procedures in different countries, it is standard practice for the company to debug the production and eliminate possible bugs of the first batch, so residents of the CIS and Europe should tune in to wait.
Below is a table with an estimated release schedule based on an analysis of the company's previous releases:
| Model | Region of the announcement | Expected period | Status |
|---|---|---|---|
| Mi Power Bank 4 (CN) | China | 4Q 2026 / 1Q 2026 | In development |
| Mi Power Bank 4 (Global) | Europe/CIS | 2nd quarter 2026 | Planned. |
| Mi Power Bank 4 Pro | Global | 3rd quarter 2026 | Rumors. |
| Mi Power Bank 4 Wireless | China | Parallel to the basic | Patent-confirmed |
Given that the dates may be shifted due to global supply chains, chip shortages or logistical problems may make adjustments to the company's plans, this information is therefore advisory.
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Follow the official Xiaomi MIUI blog and Xiaomi Europe channel in Telegram – this is where information about new accessories appears before they go to retail.
Compatibility and fast charging protocols
One of the main problems users have is the confusion in charging protocols. Xiaomi Power Bank 4 aims to solve this problem by offering a universal solution. Full support for USB Power Delivery is expected, making the battery compatible not only with smartphones, but also with MacBook laptops, iPad tablets and game consoles like Nintendo Switch.
For owners of smartphones Xiaomi, Redmi and POCO is important to support proprietary protocols. the fourth generation should be able to “detect” the connected device and activate the maximum charging speed, whether it is 67 watts, 90 watts or 120 watts. For devices of other brands (Samsung, OnePlus) will work standard Quick Charge or PD.
It's important to get the cable right. Even the most powerful Power Bank won't give you the top speed if you use old or poor-quality wire. To realize the potential of the new cables will need 5A-labeled cables and an E-Marker chip.
- ⚡ Automatic switching between voltages 5V, 9V, 12V, 20V.
- 🔌 Support PPS (Programmable Power Supply for adaptive charging.
- 📉 Minimum heat release when working with high currents.
- 🔄 Backward compatibility with all devices with a port USB.
⚠️ Note: Using unoriginal cables from cheap refueling stations can cause charging speeds to fall to the standard 10W, regardless of the powerbank's capabilities.
Design, ergonomics and materials of the body
The look is not just aesthetics, but functionality. There are rumors that Xiaomi Power Bank 4 will get an updated matte-coated design that doesn't collect fingerprints.The shape of the device will likely remain rectangular with rounded faces, but the thickness of the case can be reduced thanks to the denser layout of the elements.
Materials will play a key role in heat transfer: Aluminum alloy or high-strength plastic with added graphite will help dissipate heat generated by fast charging, and the weight of the device will remain comparable to previous generations, since the physical capacity of the batteries cannot be reduced without losing energy.
On the front panel, perhaps a small LED-display OLED-A screen that shows the exact percentage of charge and current wattage, which is a very useful feature for those who are monitoring the state of their equipment, and the location of the ports can also be revised for ease of use in conjunction with a smartphone.
☑️ What to look for when choosing a Power Bank
Comparison with competitors and previous models
To understand the value of the upcoming novelty, you need to compare it with the current leader - Mi Power Bank 3 Pro. The main difference in the fourth version will be the maximum power output and self-charging speed. If it took several hours to charge the third generation, the new device will be able to recover its life twice as fast.
Competitors Anker, Baseus and Ugreen already offer powerful solutions, but Xiaomi has traditionally benefited from price and integration into its ecosystem. Smart home buyers will appreciate the ability to control or monitor charge through the Mi Home app, if implemented.
Xiaomi has almost no match in the price segment under $50 in terms of characteristics.The price of Power Bank 4 is expected to start at the same mark as its predecessor, making it a hit, but the first batches may cost more because of high demand.
Comparison of key parameters:
- 🆚 Power: Increase from 45 W to 100 W+ Watt.
- 🆚 Capacity: Keeping the 20,000 mAh standard with less volume.
- 🆚 Price: Preservation of the available price segment.
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Xiaomi Power Bank 4 will be a great upgrade for owners of older models, offering twice the charging speed and better compatibility with modern technology.
Where and how to buy to avoid counterfeiting
The brand’s popularity is generating a huge amount of counterfeiting.When Xiaomi Power Bank 4 finally comes out, it’s important to know where to buy it. Official stores, authorized partners and major chain retailers are the only places where you’re guaranteed to get the original with a valid warranty.
When buying on marketplaces, pay attention to the seller. If the device is not selling the marketplace itself or the official store of the brand, but an unknown company with a low rating, the risk of running into a fake is high. mi.com/verify mandatory.
Also beware of too much discounts right after the start of sales. Deficit and popular new products rarely get cheaper in the first months. If the price is suspiciously low, this is a sure sign that the inside is not the original battery, but a re-labeled cheap counterpart.