Faster power bank 50000mAh

Description

● The rated total capacity of the power bank's internal battery cells (e.g., 50000mAh) is measured at 3.7V. ● Standard charging voltage for devices like smartphones is 5V. Voltage conversion and boosting occur during discharge, inevitably causing energy loss. ● Therefore, the power bank's actual effective output capacity is approximately 60%-70% of the rated total capacity. ● Example: A power bank with a rated capacity of 50000mAh can provide approximately 30000-35000mAh of usable charging capacity for devices (actual values vary depending on the device and usage conditions).