Electronics
INIU 10,000mAh 45W Slim Power Bank
Our verdict
INIU has squeezed 45 watts and 10,000mAh into something close to the size of a deck of cards, and the short braided USB-C cable clips on rather than being molded in. That one design choice means a frayed cord does not turn the whole battery into landfill, which is where most built-in-cable banks eventually end up.
- 10,000mAh capacity
- 45W maximum output
- Detachable USB-C cable
- Around 160g battery weight
Why we picked it
Capacity per gram is the interesting number here. At roughly 160 grams for a full 10,000mAh cell, it disappears into a coat pocket in a way most banks this size do not, and 45 watts is enough to push a large phone well past two thirds in half an hour or keep a tablet ticking along.
Against a fixed-cable rival you trade a little tidiness for repairability and the freedom to swap in a longer cord when you need one. Against an anonymous budget battery you get a three-year warranty and a brand with a long safety record. It suits travelers who want one bank covering a phone, earbuds and a light tablet.
Best for
- Flights and long travel days
- Pocket carry without bulk
- Charging a phone and earbuds
Keep in mind
- Real capacity after conversion losses is nearer two phone charges than three, as with any bank.
- The attached cable is very short, so your phone sits right against the battery while charging.
- A minority of owners report capacity dropping off after a year of heavy daily cycling.
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As an Amazon Associate we earn from qualifying purchases. Last reviewed: September 2026