“Why does the name say 24000mAh but the specifications say 10000mAh capacity?”
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The discrepancy you're observing, where the name mentions 24000mAh but the specifications state 10000mAh capacity, can be attributed to battery configuration and labeling practices. For example: Internal Battery Configuration: For devices with multiple internal cells, the label might reflect the capacity of individual cells instead of the total combined capacity. A power bank with two cells, each 5000mAh, will have a total capacity of 10,000mAh. However, regulations might require labeling in terms of the individual cells’ capacities. Voltage Differences: The stated capacity often reflects the total charge of the internal battery cells at their nominal voltage (commonly 3.7V). However, when power is outputted at 5V to charge devices, there are losses due to voltage conversion and circuit inefficiencies. This conversion can reduce the usable capacity significantly. Efficiency Loss: Typically, power banks lose approximately 30-40% of energy during the charging and conversion processes, so the delivered capacity is less than advertised. If your power bank doesn't seem to provide its expected performance, ensure proper usage (e.g., using compatible devices and cables), as circuit efficiency and usage patterns can significantly impact the perceived battery capacity.
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