Solder-Free Portable Power Bank DIY Kit 18650 Battery Case Power Bank Housing Assembly Kit, Batteries Not Included, F4 Fast Charging Black, F4 Fast Charging White, F6 Fast Charging Black, F6 Fast Charging White, F8 Fast Charging Black...

1. Output Power: 22.5W
2. USB Output: 5V/3A, 9V/2.5A, 12V/1.87A (Supports 5V charging and discharging simultaneously)
3. IN Input (micro): 5V/3A, 9V/2.22A, 12V/1.67A
4. Type-C Output: 5V/3A, 9V/2A, 12V/1.5A (Simultaneous multi-port output is limited to 5V)
5. Type-C Input: 5V/3A, 9V/2A, 12V/1.5A
6. Battery Requirements: Flat-top 18650 batteries without a protection circuit (65 mm long), with an internal resistance of 40 mΩ or less and a discharge rate of 1C or higher. If the device shuts down while fast-charging a phone or shows reduced durability, it indicates the battery lacks sufficient capacity or fails to meet the rate requirements. Please add more batteries or replace them with higher-performance ones.
7. Valid Voltage: 3.3V–4.15V (note: the spring causes a voltage drop)
8. Capacity Requirements: The battery pack’s minimum actual capacity must not be less than 10,000 mAh; otherwise, the battery will be unable to discharge further even before the displayed charge is fully depleted.
9. Charging Specifications: Supports 18W charging; current at the battery terminal is automatically adjusted, with a maximum charging current of 5A. (For the first charge, it is recommended to charge to 100% and then continue charging for several more hours to ensure the batteries are fully balanced.)
10. Discharge Specifications: Output current capacity: 5V/3.1A; 9V/2.22A; 12V/1.67A; supports line compensation; synchronous switching discharge at 5V/2A achieves an efficiency of over 95%
11. Multiple Protections, High Reliability: Built-in input overvoltage and undervoltage protection; integrated output overcurrent, overvoltage, and short-circuit protection; built-in battery overcharge, over-discharge, and overcurrent protection; built-in IC overtemperature protection
12. Dimensions: F4 approx. 11.6 x 8 x 2.4 cm, F6 approx. 15 x 8 x 2.4 cm, F8 approx. 18.5 x 8 x 2.4 cm, F10 approx. 22.1 x 8 x 2.4 cm

Fast Charging Specifications (Supported Protocols):
1. Supports 5V, 9V, and 12V input/output voltage levels;
2. Compatible with BC1.2, Compatible With Apple, and Compatible With Samsung smartphone fast charging;
3. Integrates Huawei SCP 22.5W Super Fast Charging output protocol;
4. Integrates QC 2.0/QC 3.0 fast charging output protocols;
5. Integrates FCP and AFC fast charging input/output protocols;
6. Integrates USB-C DRP protocol, supporting fast charging input/output;
7. Integrates USB Power Delivery (PD 2.0/3.0) protocol
8. Supports PD 2.0/3.0 input/output protocols

Note:
1. Includes only the mainboard and outer casing; does not include a battery or charging cable
2. The contact pad is the positive terminal, and the spring is the negative terminal. Please insert them correctly; do not reverse the polarity, as this may burn out the spring
3. When inserting the battery for the first time, the battery level reading may be inaccurate. After the battery has balanced, please complete two to three full charge-discharge cycles
4. If the phone’s proprietary protocol does not support fast charging (no USB fast charging), you can use PD charging (USB-C output); the PD public protocol provides more stable output