The Type-C Multi-Cell Step-Up Boost Charger Module is designed for charging 4-cell (4S) lithium-ion or lithium-polymer battery packs by boosting a standard 5V USB Type-C input to a stable 16.8V charging voltage. Equipped with a high-efficiency boost converter, this module enables safe, convenient charging of 4S battery packs using common USB chargers and power banks. It is ideal for robotics, DIY battery projects, portable devices, and multi-cell energy storage modules.

Features:

1. Designed specifically for 4S lithium battery charging (14.8V nominal)
2. USB Type-C input compatible with modern chargers and power banks
3. Provides stable 16.8V charging output
4. High-efficiency DC-DC boost converter
5. Compact and easy to integrate into multi-cell battery setups
6. Simple, plug-and-play charging solution from USB sources
7. LED charging indicators 

Specifications:

• Module Type: Step-Up (Boost) Lithium Battery Charger
• Input Voltage: 5V (USB Type-C)
• Output Voltage: 16.8V (for 4S lithium battery packs)
• Battery Compatibility: 4S (14.8V nominal) Li-ion / LiPo
• Charging Current: 1A
• Conversion Type: DC-DC boost
• Efficiency: Typically 85% – 92%
• Charging Method: Constant Voltage (CV)
• Input Connector: USB Type-C port
• Protection Features: Basic overcurrent/thermal protection (batch-dependent)
• Operating Temperature: –10°C to +60°C
• Applications: Robotics, DIY battery packs, portable power systems, RC equipment, energy storage

Package Includes:

1 × Type-C Multi-Cell 4S to 16.8V Step-Up Boost Lithium Battery Charger Module