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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Short Product Description
Short Product Description
Looking to build your own high-efficiency portable charger? This 5V 2A Charge-Discharge Integrated Module is the perfect core for your DIY power bank projects. Featuring a modern Type-C input and high-precision charging, it supports both 4.2V and 4.35V lithium batteries. With a peak conversion efficiency of 92.5% and built-in line loss compensation, it ensures your devices get stable, fast, and safe power every time. Simple, reliable, and compact—ideal for makers and hobbyists.
Key Features
Key Features
- 2-in-1 Integration: Combines lithium battery charging and 5V boost output on a single compact PCB.
- Modern Type-C Input: Compatible with most current smartphone chargers for easy power-up.
- 92.5% High Efficiency: Minimizes heat generation and maximizes battery runtime during discharge.
- Visual Status Indicators: 4 built-in LEDs provide real-time battery level monitoring (25%, 50%, 75%, 100%).
- Line Loss Compensation: Maintains a stable 5V output even through longer or lower-quality USB cables.
- DIY Friendly: Includes a separate USB-A female socket, allowing for flexible enclosure mounting and custom soldering.
Full Product Description
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Forget outdated Micro-USB.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
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
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
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
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.
