Xiaomi 2C 20000mAh
(2640 reviews)
This external battery from Xiaomi is one of the most popular power banks, combining a very high capacity with a very tight price.
Characteristics
- Capacity: 20000 mAh / 74Wh
- Dimensions: 150 x 70 x 24 mm
- Weight: 358g
- Output: 2 USB ports, 5.1V⎓3.6A
- Quality, reduced price for a power bank of this capacity
Detailed overview
Xiaomi, the world's 4th largest smartphone maker, made a big splash with its 2C external battery boasting a 20Ah capacity. It's hard to offer a power bank with this kind of capacity, this build quality, and fast charging (thanks to Qualcomm QC3.0 compatibility) for under $30. Yet that's exactly what this battery delivers, with its clean design and white matte finish, and its two ports able to charge two devices simultaneously for a maximum power of 18V. Compatible with most USB devices, the Mi 2C has a smart charging mode and is able to charge low-current devices (trickle mode), such as a Mi Band smartwatch that only draws 0.025A. Able to charge an iPhone 7 seven times or an iPad Mini 4 2.5 times, this power bank is of exemplary quality.
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Page last updated on 02/07/2026