Thank you for choosing Anker power banks. Here is a detailed explanation of the terms and details found on the power bank to help you better understand and use your device. These explanations apply to most Anker power banks.
Battery Capacity
This is usually measured in milliampere-hours (mAh) and indicates the total amount of charge the battery can store under specific conditions. For example, a total capacity marked as 20,000mAh means the cells inside the battery can store up to 20,000mAh. However, the actual usable capacity might be less due to factors like conversion efficiency and discharge rate.
Cell Capacity
This refers to the capacity of a single cell within the power bank. For instance, a detail reading "Cell Capacity: 5,000mAh, 14.4VDC, 72Wh" means each cell can store 5,000mAh, operates at 3.6 volts nominally, with the total voltage for multiple cells being 14.4 volts, equating to 72 watt-hours of energy. The "4 pcs" indicates there are four such cells in the power bank.
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5,000mAh: This is the capacity of each cell.
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14.4VDC: The total nominal voltage of the cell group. With the cells connected in series, 14.4V represents the total voltage of four cells in series. Therefore, the voltage of each cell is 3.6V.
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72Wh: The total energy of the cell group, showing that the entire cell group can store 72 watt-hours of energy. A watt-hour (Wh) is a unit of electrical energy, indicating that when fully charged, the group can sustain a power output of 72W for one hour.
Internal Battery
This refers to the number and capacity of batteries contained within the power bank. For example, "Internal Battery: 5,000mAh × 4 pcs" indicates that the power bank contains four 5,000mAh cells, totaling 20,000mAh.
Rated Capacity
Rated capacity refers to the battery's capacity at the rated voltage, usually measured in milliampere-hours (mAh). For example, "Rated Capacity: 10,000mAh" indicates that the battery has a capacity of 10,000mAh at the rated voltage of 3.6V.
Reasons for Differences Between Rated Capacity and Actual Capacity
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Voltage Conversion: The typical voltage of a phone is 3.87V. When charging, the capacity might adjust to approximately 9,300mAh from 10,000mAh at 3.6V (this conversion capacity can vary for different devices).
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Conversion Efficiency: Not all energy converts during charging; typically, 10-15% is lost.
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Phone Self-Consumption: The phone consumes some energy during charging, even when in StandBy mode.
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Charging Cable Loss: The cable used for charging also incurs some energy loss; the longer the cable, the greater the loss, typically around 5%.
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Additional Factors: Temperature and the number of charge cycles can also cause discrepancies between the rated capacity and the actual output capacity. Rest assured, these variations are typical and expected.
Input
Input refers to the parameters of the power bank receiving electrical energy. The parameters include voltage (V) and current (A). For example, "Input: 5V⎓3A / 9V⎓3A / 12V⎓3A / 15V⎓3A / 20V⎓5A" means the power bank can accept various voltages and currents, supporting up to 20 volts and 5 amperes. This means you can use chargers with different voltages and currents to charge the power bank, providing greater compatibility and flexibility. It supports multiple input protocols to ensure efficient charging in various situations.
Base Input
Base input refers to the fundamental input parameters of the power bank, usually measured in power (W). For instance, "Base Input: 100W Max" indicates the maximum base input power is 100 watts. If the input voltage is 20V, then the input current can be up to 5A.
Output
Output parameters, which include voltage (V) and current, measured in amperes (A), specify the electrical energy the power bank can provide to devices. For example:
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USB-A Output: 5V⎓2.4A / 9V⎓2A / 12V⎓1.5A
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USB-C Output: 5V⎓3A / 9V⎓3A / 12V⎓3A / 15V⎓3A / 20V⎓5A
This indicates that the power bank can deliver multiple voltage and current outputs through USB-A and USB-C ports. The USB-C port supports up to 20 volts and 5 amperes, while the USB-A port can handle up to 12 volts and 1.5 amperes. This versatility allows you to charge various devices with differing voltage and current requirements, offering enhanced compatibility and flexibility. Moreover, the power bank is capable of charging multiple devices simultaneously for efficient power delivery in diverse charging scenarios.
Total Output
This is the total power output capacity of all interfaces, typically measured in watts (W). For instance, "Total Output: 200W Max" signifies the maximum output of the power bank is 200 watts, ensuring that the combined load on multiple ports does not exceed this limit.
Wireless Output
Wireless output describes the power bank's capability to supply electrical energy to devices via magnetic induction. The output power is typically noted in watts (W). For instance, a specification labeled "Wireless Output: 5W / 7.5W / 15W Max" means the power bank can deliver up to 15 watts through magnetic attraction. It's worth noting that some of our products are compatible with Qi and Qi2 wireless charging protocols—Qi being a global standard set by the Wireless Power Consortium. This compatibility enhances the efficiency and convenience of charging, supporting a broader range of wireless charging devices.
Other Markings
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Battery Type: For example, "Li-ion" indicates a lithium-ion battery.
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Certification Markings: Such as CE, UKCA, and PSE, confirm the product has met specific safety and quality standards.
Locating Printed Details
To facilitate users in finding this parameter information, power banks usually have this information printed on the back or bottom of the device. To find them:
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Check the Back, Side, or Bottom: Most power banks have detailed parameter information printed here.
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Look for Markings: Identify parameters like capacity and input/output specs.
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Read the Parameters: Helps in understanding the power bank's performance and usage.
If you have any questions, please contact us for further assistance.
