¶ Li-Ion Boost Charger Board
BMS with Boost Rev 2 - Battery management and 5V boost converter module
¶ Overview
The UnderBaked Li-Ion Boost Charger is an all-in-one battery management system (BMS) with integrated 5V boost converter. This solderless kit provides safe charging, protection, and voltage regulation for lithium-ion battery projects. Perfect for powering portable electronics, DIY projects, and learning about battery management systems.
Key Features:
- Integrated Battery Management System (BMS) for Li-ion cells
- 5V boost converter output for powering devices
- USB-C charging port for convenient charging
- Customizable power control switches (configurable when ordering)
- LED indicators for power and charging status
- Multiple JST connectors for flexible integration
- QR code for quick documentation access
- Revision 2 design (May 2026)
Technical Highlights:
- BMS chip for battery protection (over-charge, over-discharge, over-current)
- Boost converter IC for stable 5V output
- Inductor (L1) for efficient power conversion
- Two power control switches (SW4 ON, SW5 OFF) - customizable configuration
- Multiple power input/output connectors (J1, J3, J5, J7)
- Voltage test points (Vcc, GND, Vb) for monitoring
- Status LEDs (LED1, D1, D2)
⚠️ IMPORTANT: This kit involves lithium-ion batteries. Read the Safety Guidelines before use.
Customization Note: The on/off switches (SW4 and SW5) can be customized when ordering to match your specific control requirements.
For detailed information, see the Li-Ion Boost Charger Overview.
¶ Quick Links
- Overview - Detailed product information
- Assembly Instructions - Step-by-step assembly guide
- Bill of Materials - Complete parts list
- Safety Guidelines - CRITICAL - Read first!
- Troubleshooting - Common issues and solutions
- Revision Notes - Board revision history
- Projects - 3D printable enclosures and accessories
- Gallery - Community projects and builds
¶ Downloads
¶ Documentation
¶ Images
¶ 3D Models
- STEP File - Rev 2 - For CAD and enclosure design