• Product Introduction
Why does the power bank provide less charge than expected? How to estimate the number of charges?

The decrease in capacity during charging is due to energy conversion and the circuit loss, typically resulting in a 34% to 45% loss. Therefore, a fully charged RAPID 5000mAh power bank can usually provide 2750mAh to 3300mAh of actual power to a device. To estimate the number of charges, please use the following formula: (Power bank capacity × 55%~66%) ÷ Device battery capacity ≈ Number of charges For example, a 5000mAh power bank charging a 3300mAh device can typically provide approximately one full charge.