What is Rated vs cell capacity?
Usable output vs the printed cell rating.
Short answer
Good brands print 'rated capacity' on the back — compare that.
Rated vs cell capacity when buying a power bank
Usable output vs the printed cell rating.
Why it matters: Real output ≈ 60–70% of the label. A 10,000 mAh bank gives roughly 6,500 mAh.
Look for: Good brands print 'rated capacity' on the back — compare that.
Full Power Bank buying guide