22.5W Fast Charging DIY Power Bank Case Kit

22.5W Fast Charging DIY Power Bank Module and Enclosure Kit for 1260110 Battery

The 22.5W Fast Charging DIY Power Bank Case Kit is a high-performance DIY electronics module designed for makers, hobbyists, and tech enthusiasts in Bangladesh. This kit provides an easy way to build a custom portable charger using flat 1260110 lithium polymer batteries. Equipped with a high-efficiency mainboard, it supports bidirectional Type-C fast charging along with dual USB output ports. The integrated digital LED screen provides precise battery capacity monitoring in real time. Ideal for DIY projects at Biggan Project or custom electronics builds across BD, this power bank enclosure delivers fast charging capabilities in a compact and lightweight design.

Product Specifications

Key Features

• Supports up to 22.5W super-fast charging for rapid energy transfer and shorter charging times.
• Type-C bidirectional fast charging port allows fast charging for both the power bank and connected devices.
• Built-in multi-level protection board protects against overcharging, short circuits, and high temperatures.
• Clear LED digital display shows real-time percentage level of remaining power.
• Dual USB output ports enable charging multiple smartphones or electronic gadgets at once.
• Compact snap-fit housing design available in Black and White options.

Applications and Use Cases

• Creating custom high-capacity portable power banks for personal everyday carry in BD.
• Practical soldering and assembly project for electronics students and STEM learning in Bangladesh.
• Backup power supply module for Arduino, ESP32, or robotics projects created through Biggan Project.
• Repurposing healthy 1260110 polymer battery cells into a fast-charging external battery bank.

Assembly Guide and Usage Instructions

• Step 1 (Pre-Testing): Plug in a charging cable to the mainboard before soldering to verify that the LED display powers on properly.
• Step 2 (Battery Preparation): Gather two 3.7V 1260110 polymer batteries. Do not use 3.2V LiFePO4 cells.
• Step 3 (Soldering Connection): Connect the batteries strictly in parallel (B+ to positive, B- to negative). Ensure solid solder joints without using springs or clips.
• Step 4 (Polarity Caution): Double check polarity before powering on; reverse polarity connection will permanently damage the motherboard ICs.
• Step 5 (Securing Internal Parts): Apply adhesive tape or foam pads to hold the batteries firmly inside the housing to prevent movement.
• Step 6 (Final Snap-Fit): Test charging and discharging functions completely before closing the snap-fit casing, as it is not designed for frequent reopening.

Frequently Asked Questions

• Q: Are batteries included in this power bank case kit?
  A: No, batteries are not included. You need to supply two 1260110 3.7V polymer lithium battery cells.
• Q: Can I connect 18650 cylindrical batteries to this kit?
  A: The internal casing dimensions (110x60x23mm) are specifically sized for 1260110 flat polymer batteries. 18650 batteries will not fit inside the enclosure.
• Q: Why is fast charging disabled when two phones are plugged in?
  A: Simultaneous multi-port charging automatically drops to standard 5V output for safety and protocol management.
• Q: Why does the battery percentage display seem inaccurate after first assembly?
  A: The integrated battery meter uses self-learning logic. It automatically calibrates its readout after completing 2 to 3 full charge-discharge cycles.

Challenges and Considerations

• Requires basic soldering equipment and technique to connect battery leads securely.
• The circuit board lacks physical reverse-polarity protection, so incorrect B+ and B- wiring will destroy the controller IC.
• Snap-fit plastic housing locks tightly, making disassembly difficult without marking or scratching the enclosure.

Device and Battery Compatibility

• Compatible with 3.7V lithium polymer battery cells model 1260110 wired in parallel.
• Compatible with mainstream smartphones, tablets, and USB devices supporting VOOC, PD 20W, and standard fast-charging protocols.

Future Enhancement Options

• Adding thermal padding between battery cells and motherboard for improved thermal management during peak 22.5W output.
• Using custom 3D-printed outer bumpers or protective silicone sleeves for outdoor ruggedness.

Product Benefits

• Provides an affordable solution for building a high-power fast charger tailored to exact battery capacities.
• Combines multi-protocol support (VOOC and PD) in a single portable circuit board.
• Delivers real-time numerical feedback on power levels unlike basic 4-LED indicator boards.

Conclusion

The 22.5W DIY Power Bank Case Kit offers a practical, high-efficiency solution for building a custom portable charger. With VOOC fast charging, bidirectional Type-C output, and accurate digital monitoring, it stands out as an excellent DIY hardware project for electronics hobbyists and students across Bangladesh looking for reliable mobile power solution.

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