LILYGO T-Energy S3 Equipped with 18650 Lithium Battery
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LILYGO T-Energy S3 Equipped with 18650 Lithium Battery
The LILYGO T-Energy S3 is a versatile ESP32-S3-based development board designed for low-power IoT applications, remote sensing, and battery-powered projects. Equipped with a dedicated 18650 lithium battery slot, it ensures long-term operation with USB charging support. The board features Wi-Fi 802.11 b/g/n, Bluetooth 5 (LE), and a HX6610S charging chip with reverse polarity protection.
Key Features
- ESP32-S3 MCU with 16MB Flash and 8MB PSRAM for high-speed processing.
- Integrated 18650 lithium battery slot for portable power supply.
- HX6610S charging chip with reverse polarity protection.
- Supports USB charging (5V 500mA) for easy recharging.
- Wi-Fi 802.11 b/g/n & Bluetooth 5 (LE) for wireless communication.
- Qwiic 4-Pin STEMMA QT interface for I2C expansion.
- Compact size (32 x 91.5mm) for easy integration into embedded projects.
- Compatible with Arduino-IDE, VS Code, and ESP-IDF for flexible development.

Specifications
Component | Details |
---|---|
MCU | ESP32-S3 |
Flash Memory | 16MB |
PSRAM | 8MB |
Wireless Connectivity | 2.4 GHz Wi-Fi, Bluetooth 5 (LE) |
Supported Languages | C/C++, Micropython, Lua |
Programming Platforms | Arduino-IDE, VS Code, ESP-IDF |
Battery Support | 18650 lithium battery slot |
Charging Chip | HX6610S (with reverse polarity protection) |
Charging via USB | 5V 500mA |
Onboard Functions | Qwiic 4-Pin, Boot + Reset |
Dimensions | 32 x 91.5mm |
Applications
- Battery-Powered IoT Devices: Long-term wireless sensors, automation projects.
- Remote Sensing & Monitoring: Low-power communication and data collection.
- Portable Embedded Systems: Energy-efficient designs for mobile applications.
- Wearable & Smart Gadgets: Battery-backed Bluetooth and Wi-Fi connectivity.
- DIY & Maker Projects: Ideal for developers building compact and wireless solutions.
Includes
- T-Energy S3 X 1
- Pin header X 2
Reference Code
Effective Date: March 27, 2025
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