22.5W QC4+ PD3.0 DIY Power Bank Module – 5-Port Fast Charge
22.5W QC4+ PD3.0 DIY Power Bank Module – 5-Port Fast Charge
22.5W 5-Port Dual Fast Charging Power Bank Circuit Board – QC4+ & PD3.0 DIY Motherboard
Build your own high-speed charging power bank with this feature-packed 22.5W 5-Port DIY Power Bank Module from OULLX. Equipped with QC4+ and PD3.0 fast charging protocols, this compact circuit board supports both Type-C and Micro USB inputs and outputs, making it the ideal foundation for a custom, high-performance portable charger.
Whether you're an electronics enthusiast, maker, or DIY hobbyist, this motherboard gives you everything you need to assemble a capable, multi-device power bank with support for OPPO and Huawei super fast charging protocols.
Made in Mainland China.
Key Features
- 22.5W Maximum Output – Delivers rapid charging for compatible smartphones and devices
- 5 Charging Ports – Multiple simultaneous device charging via USB-A, Type-C, and Micro USB
- QC4+ & PD3.0 Support – Industry-leading fast charging protocols for wide device compatibility
- Built-In Protection Chip – Onboard safety circuitry protects against overcharge, over-discharge, and short circuit; no additional protection board needed
- OPPO & Huawei Flash Charging Compatible – Different protocols deliver optimized power output for each device
- Compatible Battery Types – Works with 4.2V 18650, polymer, and ternary lithium cells; multiple 18650 cells can be connected in parallel for larger capacity
- Internal Installation – Designed for clean, professional internal mounting in your custom power bank build
- DIY-Friendly Design – A true drop-in motherboard for makers and electronics builders
Specifications
| Brand | OULLX |
| Max Output Power | 22.5W |
| Ports | 5 (USB-A, Type-C, Micro USB) |
| Charging Protocols | QC4+, PD3.0, OPPO Flash, Huawei Super Fast Charge |
| Compatible Batteries | 4.2V 18650 / Polymer / Ternary Lithium (parallel 18650 supported) |
| Installation | Internal |
| Origin | Mainland China |
Important Notes
- Battery wires connecting to the motherboard must be rated to withstand a current of 10A.
- The motherboard includes an integrated protection chip — do NOT add a separate external battery protection board.
- Do not charge a phone while using crocodile clip connections during testing.
- Compatible with 4.2V 18650, polymer, and ternary lithium batteries only. Ferroelectric, disposable dry, NiMH, lead-acid, and nickel-based batteries are not compatible.
- The motherboard must have a battery capacity preset before use.
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Learn more: EPA guidance on lithium-ion battery handling
Frequently Asked Questions
Q: What battery types are compatible with this power bank circuit board module?
A: This DIY power bank motherboard is compatible with 4.2V 18650 lithium cells, polymer lithium batteries, and ternary lithium batteries. Multiple 18650 cells can be wired in parallel for a higher total capacity. Ferroelectric, lead-acid, NiMH, nickel-cadmium, and disposable dry batteries are not supported.
Q: Does this QC4+ PD3.0 power bank module include built-in battery protection?
A: Yes. The motherboard features an integrated protection chip that manages overcharge, over-discharge, and short-circuit protection. Because of this, you should not add a separate external battery protection board — doing so may interfere with normal operation.
Q: Which fast charging protocols does this 22.5W module support?
A: This module supports QC4+ (Qualcomm Quick Charge 4+), PD3.0 (USB Power Delivery 3.0), OPPO Flash Charging, and Huawei Super Fast Charging. Each protocol delivers a different power level depending on the connected device's capabilities.
Q: Can I use this circuit board to charge multiple devices at the same time?
A: Yes. The board features 5 output ports (including USB-A, Type-C, and Micro USB), allowing multiple devices to be charged simultaneously. Total available power is shared across active ports, so individual device charging speeds may vary based on load.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.