Copy the capacity and output ratings from the power bank's own label or verified maker information. Show each output port and identify the included cable, if any. A printed capacity is a specification, not the amount every phone will receive in use.
Do not promise a fixed number of recharges: results depend on the phone, battery condition, cable, and charging losses. If you tested a port, state the device and the limited check performed rather than turning it into a general performance claim.
Photograph the label clearly and keep different models separate. Confirm compatibility from the device's requirements and reliable product information. If the label is unreadable or the source of a performance claim is uncertain, omit that claim instead of guessing. A cable rating can affect results, so identify its type if included.
