PD 100W Power Bank DIY Module – 4S BMS TFT Colour Display
PD 100W Power Bank DIY Module – 4S BMS TFT Colour Display
Build Your Own 100W Fast-Charging Power Bank
The PD 100W Rapid Charging Module by Gaqqee is a professional-grade DIY power bank mainboard designed for electronics enthusiasts and makers. Featuring a 4-series (4S) lithium battery protection board and a vivid 0.96-inch TFT colour display, this module lets you assemble a high-power portable charger that supports the latest fast-charging standards — all in one compact board. Made in Mainland China.
Key Features
- PD 100W Output / 65W Input: Delivers up to 100W output power, compatible with PD, QC, FCP, SCP, and other mainstream fast-charging protocols for broad device compatibility.
- TFT Colour Display: The integrated 0.96-inch screen shows real-time battery level, voltage, current, and power at a glance — illuminates for one minute on activation then dims to conserve energy.
- Dual Port Design: One Type-C port (bidirectional — charge in and out) plus one USB-A fast-charging output port for simultaneous device charging.
- Comprehensive BMS Protection: Built-in safeguards against overcharging, over-discharging, overvoltage, and overheating keep your batteries and connected devices secure.
- High Conversion Efficiency: Minimises energy loss for stable, consistent current and voltage output that protects connected devices.
- Self-Learning Battery Calibration: The battery meter auto-calibrates its capacity reading over several charge/discharge cycles for accurate level display.
Specifications
| Input | 5V 3A / 9V 2A / 12V 1.5A / 20V 3.25A |
| Output | 5V 3A / 9V 2A / 12V 1.5A / 10V 2.25A / 20V 5A |
| Max Output Power | 100W |
| Max Input Power | 65W |
| Display | 0.96-inch TFT colour screen (battery level / voltage / current / power) |
| Interfaces | 1× Type-C (bidirectional) + 1× USB-A fast-charging output |
| Protocols | PD / QC / FCP / SCP and more |
| Battery Configuration | 4S ternary lithium (series-connected protection board required) |
| Country of Origin | Mainland China |
| Package Contents | 2× Modules |
Assembly & Usage Notes
- Test before soldering: Connect a charging cable to verify the display works correctly before any soldering work.
- Solder battery leads directly: Always solder battery leads for a solid connection. Twisted wires, crocodile clips, or spring connectors may cause insufficient power supply and affect performance.
- Correct polarity is critical: Connect battery positive (+) to B+ and negative (−) to B−. Reverse polarity will permanently damage the mainboard.
- Ternary lithium batteries only: Do NOT use lithium iron phosphate (LiFePO₄) batteries. Wire 4 cells in series with a protection board before connecting to the mainboard.
- Normal heat during fast charging: Slight warmth during operation is a normal byproduct of high-power energy conversion.
- Protocol compatibility: This board uses public fast-charging protocols (PD/QC/FCP/SCP). Verify your smartphone supports a compatible public protocol to ensure fast-charge functionality.
Related Products You May Like
- Airtight Transparent PET Storage Bottle – Great for organising small electronic components
- Leather Hole Punch Tool – Useful for DIY enclosure work
- U & V Leather Groover Skiving Tool Kit – Precision DIY toolkit
Learn more: EPA guidance on lithium-ion battery handling
Frequently Asked Questions
Q: What type of batteries are compatible with this 4S power bank module?
A: This module is designed exclusively for ternary lithium batteries wired in a 4-series (4S) configuration with a protection board. Lithium iron phosphate (LiFePO₄) batteries are not compatible and must not be used, as the charge/discharge voltage ranges differ significantly.
Q: Does the PD 100W module support fast charging for all smartphones?
A: The module supports mainstream public fast-charging protocols including PD, QC, FCP, and SCP. Most modern Android and iOS smartphones that support any of these protocols will benefit from fast charging. Proprietary or manufacturer-specific protocols that do not have public standard support may charge at standard speeds only — always verify your device's supported protocols.
Q: Why does the battery level display seem inaccurate when I first connect the battery?
A: This is completely normal. The battery meter uses a self-learning calibration system that refines its capacity estimation over several full charge and discharge cycles. After 3–5 cycles, the display will accurately reflect your battery's true charge level.
Q: Can I use the Type-C port for both charging the power bank and charging my devices?
A: Yes — the Type-C port supports bidirectional operation. It can accept input (to charge the power bank batteries) and deliver output (to charge connected devices). The USB-A port is output-only. Note that simultaneous input and output may reduce overall efficiency.
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.