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5V 2A Power Bank DIY Module | Type-C Li-ion Charge & Discharge Board

5V 2A Power Bank DIY Module | Type-C Li-ion Charge & Discharge Board

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Regular price HK$10.00
Regular price Sale price HK$10.00
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Short Product Description

Upgrade your interface with crisp visuals.
This 12864 Graphic LCD Module delivers a sharp 128x64 pixel resolution on a stunning blue backlight with white pixels. Built with the versatile ST7920 controller, it supports both Parallel and SPI Serial modes, allowing you to save precious I/O pins on your Arduino or microcontroller. Perfect for displaying complex graphics, charts, and custom text.

Key Features

  • High-Res Graphic Display: 128x64 dot matrix resolution enables text, images, and graph rendering.
  • Crisp Visibility: Deep blue background with bright white pixels provides excellent contrast and aesthetics.
  • Dual Interface Modes: Supports both 6800 8-bit Parallel and Serial (SPI) modes (Selectable via Pin 15 PSB).
  • Standard 5V Logic: Seamlessly compatible with Arduino UNO, Mega, and other 5V logic controllers.
  • Adjustable Contrast: Dedicated V0 pin allows for precise brightness and contrast tuning via potentiometer.
  • Robust Mounting: Four corner mounting holes (3mm) for secure installation in enclosures.

Full Product Description

Professional Grade Power Management for DIY Projects

When it comes to DIY electronics, power stability is everything. Our 5V 2A Integrated Module eliminates the need for separate charging and boosting boards. It provides a seamless transition between charging your lithium battery and powering your external devices via USB.

 

High-Precision Charging with Type-C

Forget outdated Micro-USB. This module utilizes a Type-C interface, ensuring better durability and compatibility with modern cables. The high-precision charging circuit (±0.5% accuracy) protects your lithium batteries (3.7V/4.2V) from overcharging, extending their overall lifespan.

 

Optimized 92.5% Conversion Efficiency

Efficiency is the difference between a power bank that lasts and one that wastes energy as heat. By achieving 92.5% efficiency at 5V 2A output, this board ensures that most of your battery's capacity goes directly into charging your smartphone or powering your STEM projects.

 

Built-In Safety & Stability

Equipped with Line Loss Compensation, the module automatically adjusts the output voltage (5V–5.15V) to account for the resistance in your charging cable, guaranteeing a steady flow of power. The low static current (<30uA) means your battery won't drain even when the module is idle for long periods.

Technical Specifications

  • Input voltage range: 5V ~ 5.5V
  • Charging cut‑off voltage: 4.2V / 4.35V (±0.5%)
  • Max charging current: 2.4A (±5%)
  • Boost output voltage: 5V ~ 5.15V (with line‑loss compensation)
  • Boost output current: 2A
  • Conversion efficiency: 92.5% (at 3.6V input, 5V 2A output)
  • Static current (battery): < 30 µA
  • Output ripple: 100 mV

Delivery Options

  • Local delivery within Hong Kong and in-store pickup.​
  • Free shipping for orders of HK$400 or above; HK$35 shipping fee for orders below HK$400.​
  • Shipped by SF Express, usually dispatched the same day for orders confirmed before 6:00 PM (Mon–Sat).​
  • Estimated delivery time: 1–3 business days after dispatch (Hong Kong).​
  • In-store pickup details (location and time) will be confirmed by email or phone message.​
  • Delivery times are estimates and may be affected by weather or unforeseen circumstances.​

FAQ Section

Q: Can I use this with 18650 batteries?

A: Yes! This module is perfectly compatible with 3.7V lithium batteries, including 18650, 21700, and Li-polymer cells. Ensure the battery is rated for 4.2V or 4.35V.

Q: Does this module require soldering?

A: Yes. While the main board is pre-assembled, you will need to solder the provided USB-A female socket to the module and connect your battery leads (+ and -).

Q: Is there protection against reverse polarity?

A: No. Please double-check your battery polarity before connecting. Reversing the battery will damage the IC instantly.

Target Users / Applications

  • STEM Students: Ideal for learning about power management and battery boost circuits.
  • DIY Enthusiasts: Build custom power banks or portable power for Raspberry Pi/Arduino.
  • Repair Techs: A great replacement board for broken portable chargers.
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