Power Bank Case for 8 x 18650 Batteries with PD, QC, and 22.5W Fast Charging
This power bank case for 18650 batteries is the ideal solution for creating a high-performance, safe DIY power bank compatible with the latest fast charging protocols. The product includes only the case and electronic board (motherboard) – batteries and charging cable are not included.
Compatibility and Performance
Designed for 8 x 18650 batteries, the case provides a maximum output of 22.5W, supporting both PD (Power Delivery) and QC (Quick Charge), making it compatible with a wide range of phones, tablets, and electronic devices.
Output Power: up to 22.5W
Outputs: Dual USB-A + USB Type-C
Inputs: Micro USB (Android) + USB Type-C
Simultaneous charging and discharging at 5V via USB-C
Supported Fast Charging Protocols
This PD QC power bank case integrates the most widely used fast charge standards, automatically adjusting voltage and current according to the connected device.
PD 2.0 / PD 3.0 (input & output)
PPS: 3.3V – 11V, 20mV steps
QC 2.0 / QC 3.0
Huawei SCP 22.5W SuperCharge
FCP & AFC (input/output)
BC1.2, Apple and Samsung Fast Charge
USB Type-C DRP (dual role port)
Electrical Specifications
USB Output
5V/3A, 9V/2.5A, 12V/1.87A
Type-C Output
5V/3A, 9V/2.22A, 12V/1.67A (PD only)
Micro USB Input
5V/3A, 9V/2A
Type-C Input
5V/3A, 9V/2A, 12V/1.5A
Maximum Charging Current
up to 5A
Effective Battery Voltage
3.3V – 4.15V
Safety and Reliability
The case is equipped with multiple electronic protections, providing a high level of safety even during fast charging.
Input overvoltage and undervoltage protection
Output overcurrent, overvoltage, and short circuit protection
Battery overcharge and over-discharge protection
IC thermal protection (overheating)
Additional Features
Built-in LED – activated by long press of the button
Automatic voltage and current adjustment
Compatible with high-capacity 18650 batteries
For optimal performance, the total battery pack capacity should be at least 10,000 mAh actual. We recommend using high-capacity 18650 cells to achieve long runtime and optimal power bank performance.
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