Product Description
GP04S012 | 4S 12V 20A LiFePO₄ BMS
Software‑Configurable Battery Management System | NTC Sensor | 20A Continuous
The GP04S012 is a high‑performance, software‑configurable Battery Management System (BMS) designed specifically for 4S (12V) LiFePO₄ battery packs. With 20A continuous charge and discharge capability via a common port, adjustable parameters via PC, and an integrated NTC temperature sensor, it delivers reliable protection and flexibility for a wide range of 12V lithium applications — including solar storage, RVs, marine systems, and backup power. Its compact 75×53 mm footprint makes it ideal for space‑constrained battery enclosures.
⚙️ Key Features
💻 Software‑Configurable Parameters
Adjust voltage thresholds, current limits, and protection settings via PC. Fine‑tune the BMS to your exact battery chemistry and application needs.
🔋 20A Continuous Power
20A continuous charge and discharge capability with a common port — ideal for 12V lithium systems requiring reliable power handling.
🌡️ NTC Temperature Sensor
Integrated NTC thermistor provides real‑time temperature monitoring, enabling over‑temperature protection and safe operation in varying environments.
🛡️ Comprehensive Protections
Charging protection, discharging protection, over‑voltage protection, under‑voltage protection, over‑current protection, and short circuit protection ensure maximum safety.
📏 Ultra‑Compact Design
Size: 75 × 53 mm — fits easily into battery enclosures, including drop‑in 12V LiFePO₄ replacement packs.
🔌 Easy Configuration
Connect to a PC via UART to configure parameters and monitor real‑time battery status, making it ideal for development and field adjustments.
📊 Technical Specifications
- Model: GP04S012
- Cell Series: 4S LiFePO₄ (12V nominal)
- Continuous Discharge Current: 20A
- Continuous Charge Current: 20A (common port)
- Communication: UART (PC software configurable)
- Temperature Sensing: NTC thermistor (10kΩ)
- Adjustable Parameters: Voltage thresholds, current limits, protection delays, etc.
- Protections: Over‑charge, over‑discharge, over‑current, short circuit, over‑temperature
- Dimensions (L×W): 75 × 53 mm
- Operating Temperature: -20°C to 70°C
🔋 Applications
☀️ Solar Energy Storage
Perfect for small 12V LiFePO₄ battery banks in off‑grid and hybrid solar systems.
🚐 RV & Camper Van Power
Reliable battery management for house batteries in recreational vehicles.
⚓ Marine & Boat Systems
Corrosion‑resistant design suitable for trolling motors, fish finders, and onboard electronics.
🔌 Backup & UPS Systems
Ideal for small backup power units, medical devices, and telecommunications equipment.
🛵 Electric Scooters & Golf Carts
Compact 12V lithium battery packs for light electric vehicles.
🖼️ Product Gallery
We offer OEM/ODM services for the GP04S012 platform – customize current ratings, communication protocols, and physical layout. Contact our engineering team for sample requests, technical documentation, and volume pricing.
Primary: 4S BMS · 12V BMS · 20A BMS · LiFePO₄ BMS · software BMS · GP04S012 · battery management system · NTC sensor · adjustable parameters · 12V lithium battery
Performance: 20A continuous discharge · common port · over‑charge protection · over‑discharge protection · over‑current protection · short circuit protection · over‑temperature protection · PC software configuration
Applications: solar storage · RV battery · marine battery · backup power · 12V LiFePO₄ pack · electric scooter · golf cart
