22.5W QC4+ PD3.0 Power Bank DIY Module – 5-Port Fast Charge
22.5W QC4+ PD3.0 Power Bank DIY Module – 5-Port Fast Charge
22.5W 5-Port Dual Fast Charging Power Bank Circuit Board – QC4+ PD3.0 DIY Module
Build your own high-speed power bank with this compact, feature-packed 22.5W charging module from OULLX. Supporting both Qualcomm Quick Charge 4+ (QC4+) and USB Power Delivery 3.0 (PD3.0), this all-in-one DIY motherboard delivers rapid charge speeds across five ports simultaneously — perfect for electronics enthusiasts, makers, and DIY power bank projects.
Key Features
- 22.5W Maximum Output — Supports fast charging protocols including QC4+, PD3.0, OPPO flash charging, and Huawei Super Fast Charging
- 5 Charging Ports — Multiple Type-C and Micro-USB outputs for simultaneous device charging
- Built-In Protection Chip — Integrated overcharge, over-discharge, and short-circuit protection; no additional battery protection board required
- Wide Battery Compatibility — Works with 4.2V 18650, polymer, and ternary lithium batteries (supports parallel connection of multiple 18650 cells)
- Preset Battery Capacity Display — The motherboard must have battery capacity pre-configured for accurate level indication
- Internal Installation — Designed to be mounted inside your custom power bank enclosure
- Multi-Protocol Support — Different charging protocols automatically negotiate the optimal power output for connected devices
Important Notes Before Use
- The wire connecting the battery to the motherboard must be rated to withstand a current of 10A or higher.
- The board includes a built-in protective chip — do NOT add an external battery protection board.
- Do not charge a phone while using crocodile clips for testing the motherboard.
- Compatible batteries: 4.2V 18650, polymer, or ternary lithium. Multiple 18650 cells may be connected in parallel. NOT compatible with ferroelectric, disposable dry-cell, NiMH, lead-acid, or nickel batteries.
- Battery capacity must be preset on the motherboard before use.
Specifications
| Brand | OULLX |
| Max Output Power | 22.5W |
| Number of Ports | 5 (Type-C + Micro-USB) |
| Charging Protocols | QC4+, PD3.0, OPPO Flash, Huawei Super Fast Charging |
| Compatible Batteries | 4.2V 18650 / Polymer / Ternary Lithium |
| Installation Type | Internal |
| Country of Origin | Made in Mainland China |
You May Also Like
Looking for more tools and accessories for your DIY projects? Check out our Leather Hole Punch Tool | DIY Stitching Punch 4/5/6mm and the Airtight Transparent PET Storage Bottle | Beads & Crafts — ideal for organizing your components and hardware.
Learn more: EPA guidance on lithium-ion battery handling
Frequently Asked Questions
Q: What battery types are compatible with this 22.5W power bank module?
A: This DIY power bank circuit board is compatible with 4.2V 18650 lithium cells, polymer lithium batteries, and ternary lithium batteries. Multiple 18650 cells can be connected in parallel to increase capacity. It is NOT compatible with ferroelectric, disposable dry, NiMH, lead-acid, or nickel batteries.
Q: Does this board support fast charging for both Android and Apple devices?
A: Yes! The module supports QC4+ and USB-PD 3.0, which covers a wide range of devices including iPhones (via PD), Samsung, and other Android devices. It also supports OPPO Flash Charging and Huawei Super Fast Charging protocols. Actual charging speed depends on the device's supported protocol.
Q: Do I need to add an external battery protection board with this module?
A: No — this motherboard already includes a built-in protective chip that handles overcharge, over-discharge, and short-circuit protection. Adding an external battery protection board is not only unnecessary but should be avoided, as it may interfere with proper operation.
Q: What wire gauge should I use to connect the battery to the module?
A: The battery connecting wire must be capable of handling at least 10A of continuous current. Using undersized wiring can cause overheating or damage the board. We recommend using appropriately rated silicone or copper wire for your build.
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.