The Belkin BoostCharge BPB021 is a compact 10,000mAh power bank with an integrated USB-C cable. Belkin lists up to 20W USB Power Delivery output when charging one device through either the cable or USB-C port. The product can also charge two devices at once, with a lower shared maximum output.
Key specifications
- Battery capacity: 10,000mAh
- Single-device USB-C output: up to 20W
- Two-device output: up to 15W maximum shared
- Connections: integrated USB-C cable and USB-C port
- Integrated cable length: approximately 5.7cm
- Manufacturer-listed warranty: 2 years (regional terms apply)
What to consider
Potential advantages: smaller capacity and form factor for everyday carry, an integrated cable and a straightforward two-USB-C connection setup.
Things to check: the 20W maximum applies to single-device charging; connecting two devices reduces the shared output to 15W maximum. For older iPhones with a Lightning port, a compatible cable is needed separately.
Editorial note: This is an information-based product profile, not a hands-on test. Warranty and compatibility may differ by country and product revision.

