The Mi HyperSonic Power Bank has officially launched in India at an introductory crowdfunding price of Rs 3,499, available exclusively on Mi.com. Packing 50W fast mobile charging and 45W laptop charging into a sleek matte black body, this 20,000 mAh powerhouse is aimed squarely at users who need to keep multiple devices topped up on the go.
Mi HyperSonic Power Bank: Key Specifications
Mi has equipped the HyperSonic Power Bank with a triple port design — dual USB-A ports plus one USB-C port — allowing users to charge up to three devices at the same time. The 50W fast charging capability can bring a 4,500 mAh smartphone from zero to full in approximately 1 hour and 5 minutes. For laptop users, the USB-C port supports 45W output, which Mi says is faster than a standard 45W USB-C charger in real-world usage. The power bank itself can be fully recharged in just 3 hours and 50 minutes.
| Specification | Details |
|---|---|
| Battery Capacity | 20,000 mAh Li-Polymer |
| Max Mobile Charging | 50W |
| Laptop Charging (USB-C) | 45W |
| Ports | Dual USB-A + 1 USB-C (triple port) |
| Full Recharge Time | 3 hours 50 minutes |
| Phone Charge Time (4500 mAh) | ~1 hour 5 minutes |
| Safety Layers | 6-layer protection |
| Material | PC and ABS (matte black finish) |
| Price (Crowdfunding) | Rs 3,499 |
| Availability | Mi.com |
Safety, Design, and Smart Charging Features
Safety is a priority for Mi with this power bank. The Mi HyperSonic Power Bank ships with 6-layer security protection to guard against overcharging, overheating, and short circuits. The outer shell is crafted from high-quality PC and ABS materials, resulting in a body that is both lightweight and sturdy despite housing a large 20,000 mAh Li-Polymer cell.
One standout addition is the low power charge button. Tapping this button switches the power bank into a low-output mode, making it compatible with sensitive low-draw devices such as Bluetooth headsets, fitness bands, and smartwatches — devices that standard high-wattage outputs can sometimes struggle to charge correctly.
The triple port layout gives real-world flexibility: plug in a smartphone on USB-A, a laptop on USB-C, and a second phone or wearable on the remaining USB-A port, all charging simultaneously without the power bank throttling any single device below a useful rate.
Price and How to Buy
The Mi HyperSonic Power Bank is priced at Rs 3,499 under the crowdfunding programme and can be purchased directly from Xiaomi's official store. Crowdfunding pricing typically represents an early-bird discount before regular retail pricing is set, so early buyers stand to get the best deal on this accessory.
For a brand known for aggressive value-for-money pricing, the HyperSonic Power Bank sits at a competitive price point given its 50W output and laptop charging support — features that are still relatively rare in the mainstream power bank segment at this price.
