Are high capacity power banks better than small power banks?

The advertised battery capacity is not the actual size.

The biggest myth about cell phone power banks is that its power is listed in the technical specifications. If you see 10000mAh on a power bank or its user manual, you may assume it can charge your iPhone 11 (3110mAh) at least three times. Unfortunately, it's going to run out of juice before the third charge completes because the real capacity is only about two-thirds the size of the advertised volume. Realistically, a 10000mAh power bank only has around 6000~7000mAh of power to charge up your iPhone 11. The advertised capacity is just the theoretical value based on the battery cells. Power bank manufacturers often list the theoretical size as an advertisement, making their not-so-high-capacity power banks look better than they are.

False theoretical capacity

Worse still, some manufacturers sell power banks with fake theoretical capacity. READ MORE