Description
🔋 18650 Battery Charger Module with Boost Converter – 12V Output
This module is a compact, all-in-one 18650 Lithium-ion battery charger and boost converter designed to safely charge a single 3.7V 18650 cell and boost the voltage up to 12V DC output for powering 12V electronics.
⚙️ Key Specifications
| Feature | Specification |
|---|---|
| Input Voltage | 5V (via Micro-USB or solder pads) |
| Battery Type | Single-cell 3.7V Li-ion (18650) |
| Charge Voltage | 4.2V (full charge cutoff) |
| Charging Current | ~1A (typical) |
| Boost Output Voltage | 12V DC (boosted from 3.7V cell) |
| Output Current | Up to 1A (at 12V), depending on load & cell |
| Protection | Overcharge, Overdischarge, Short Circuit |
| Connectors | Micro USB for charging, solder pads for I/O |
| Size | Typically ~35mm x 18mm (varies by model) |
🔧 Features
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🔋 Charges a single 18650 Li-ion cell from 5V input (USB).
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⚡ Integrated DC-DC boost converter provides stable 12V output.
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🔄 Supports simultaneous charge & discharge (power bank-like behavior).
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🔐 Built-in protection circuitry for safe operation.
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🧩 Small form factor ideal for compact or portable DIY projects.
🛠️ Common Applications
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🏠 Home automation modules
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⚙️ Arduino or ESP32 12V-based projects
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📷 Wireless camera or sensor power
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💡 LED lighting setups
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🔋 Portable 12V power banks
📦 Package Includes
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1x 18650 Lithium Battery Charging Module with 12V Boost Output (Battery not included)
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