Luxury Marketplace

Key Features

✔ Dual USB Outputs – 1A (Standard) + 2.1A (Fast Charge) for simultaneous device charging. ✔ LCD Display – Shows battery voltage, output current, and remaining power (%). ✔ Wide Input Voltage (3V–4.2V) – Supports 1S Li-ion/Polymer batteries (18650, 26650, etc.). ✔ Smart Protection – Prevents overcharge, over-discharge, and short circuits. ✔ Boost Converter – Efficiently steps up 3.7V to 5V with ≥85% efficiency. ✔ Compact & DIY-Friendly – Fits in most power bank enclosures.

Technical Specifications

Input Voltage: 3V–4.2V (1S Li-ion/Polymer)
USB Outputs:
- USB1: 5V/1A (max)
- USB2: 5V/2.1A (max)
Output Efficiency: ≥85%
LCD Display Metrics:
- Battery voltage (V)
- Output current (A)
- Remaining capacity (%)
Protections: Overcharge, over-discharge, overload, short-circuit
Dimensions: 65mm × 35mm × 12mm
Weight: ~25g

Applications

DIY Power Banks – Build custom portable chargers.
Emergency Chargers – Backup power for phones/tablets.
Solar-Powered Packs – Store solar energy for USB devices.
Outdoor Gadgets – Charge cameras, GPS, or lights on the go.
Educational Projects – Learn about battery management systems (BMS).

How It Works

Connect Battery – Wire a 3.7V Li-ion cell (e.g., 18650) to the input terminals.
Plug in Devices – Use USB ports to charge phones, tablets, etc.
Monitor LCD – Check real-time voltage, current, and battery %.
Auto-Shutdown – Module cuts off when battery is low (<3V) or fully charged.

Package Includes

1 × LCD Dual USB Power Bank Module
(Optional) Battery connectors/wires

Why Choose This Module?

✅ All-in-One Solution – No extra circuitry needed for a functional power bank. ✅ Fast + Standard Charging – Optimized for both smartphones and low-power devices. ✅ Transparent Monitoring – LCD eliminates guesswork about battery status. ✅ Safety First – Built-in protections extend battery life.