LCD Battery Voltmeter Module with 2 USB – SC8F8790

Description

The LCD Battery Voltmeter Module with 2 USB – SC8F8790 is a multifunctional, compact digital battery monitoring solution designed for precision, convenience, and efficiency. Perfectly engineered for 3S to 10S lithium-ion battery packs (9V–42V), this module displays both real-time voltage readings and battery percentage levels, while also offering dual 5V USB outputs for charging smartphones, development boards, and other USB-powered devices. Whether you’re assembling a portable power station, solar battery box, or DIY e-bike battery monitor, this module is built to help you manage and optimize your battery system with clarity and reliability.

Built around the stable and intelligent SC8F8790 microcontroller, this voltmeter module ensures precise voltage detection and smooth USB output performance. Its high-contrast LCD screen shows both the battery’s voltage and the estimated charge level (%) in real time — allowing users to prevent deep discharge, detect full charge, and monitor power levels at a glance.

✅ Key Features of LCD Battery Voltmeter Module with 2 USB – SC8F8790:
Dual Display: Real-time voltage and battery percentage
USB Output: Two USB ports delivering 5V/2A each for simultaneous device charging
Voltage Range: Compatible with 3S Lithium battery or 12v Lead Acid battery.

Display Type: High-contrast digital LCD with clear iconography
Control Chip: SC8F8790 ensures accuracy and system stability
Wiring: Supports 2-wire connection modes
Mounting: Compact rectangular design suitable for dashboards or enclosures
Application: Ideal for DIY power systems, solar energy setups, portable battery boxes, e-bikes, and more

🔋 Accurate Voltage + Battery Percentage Display
One of the standout features of the SC8F8790 module is its dual-display functionality. Unlike basic voltmeters, this model doesn’t just show the numeric voltage value — it also translates that into a battery percentage estimate, helping users easily understand the remaining charge level.

This feature is incredibly useful for:
Monitoring battery usage during outdoor trips
Protecting against over-discharge in lithium battery systems
Checking state of charge in mobile power stations or DIY battery packs
Both the voltage and percentage values are displayed simultaneously on the bright LCD screen for instant visual feedback.

⚡ Dual USB Outputs – Power More Devices Simultaneously
Equipped with 2 USB ports, this module enables simultaneous charging of multiple 5V devices, including:
Smartphones and tablets
Microcontroller boards (Arduino, ESP32, etc.)
USB LED lights and fans
GPS modules
Portable routers, Raspberry Pi, and other embedded systems

Each port delivers 5V at up to 2A, making it an excellent power companion for field engineers, makers, and solar energy users who need clean and consistent 5V output.

🛠️ Easy to Install & Integrate
The SC8F8790 voltmeter module is user-friendly and versatile in installation. You can wire it in 2-wire mode for basic monitoring or 3-wire mode for isolated battery readouts. The panel-mountable rectangular casing fits neatly into dashboards, battery boxes, control panels, or custom enclosures. Ideal for compact spaces and clean builds.

📐 Technical Specifications:
Model – SC8F8790
Voltage Input Range – 3S 12.6v Lithium or 12v Lead-Acid Battery
Current – 1-500A
USB Output 2 Ports – 5V/2A each
Display LCD – Voltage + Percentage (%)
Accuracy – ±0.1V
Controller Chip – SC8F8790
Wiring Method – 2-wire
Wire Line length: 20cm
Dimensions Compact – fits most enclosures

🧰 Ideal Use Cases:
DIY solar power generator displays
E-bike and electric scooter battery monitors
Portable battery backup boxes
Field electronics toolkits
RC and robotics projects
Off-grid RV, van, or marine systems
Lithium battery management for DIY power walls

Why Choose the SC8F8790 with Voltage & Percentage Display?
✔ Combines real-time voltage & percentage for quick battery status evaluation
✔ Dual USB output eliminates the need for extra chargers or converters
✔ Optimized for 3S to 10S lithium battery packs
✔ Simple wiring for quick integration into new or existing systems
✔ Compact design ideal for tight spaces or portable builds
✔ Reliable SC8F8790 chip ensures accuracy and durability

Final Thoughts
The LCD Battery Voltmeter Module with 2 USB – SC8F8790 is the ultimate solution for users who want to monitor their battery system clearly and power multiple USB devices from the same module. With accurate voltage detection, visible charge percentage, and dual USB output functionality, this module helps you protect your batteries, stay informed, and reduce wiring complexity in your DIY or off-grid project.