LILYGO T-Energy S3 is a compact and energy-efficient ESP32-S3 development board designed for low-power IoT applications, remote sensing, and battery-powered embedded systems. Featuring a built-in slot for a standard 18650 lithium battery, it supports long-term operation in off-grid environments with integrated USB charging capability. The board includes Wi-Fi 802.11 b/g/n and Bluetooth 5 (LE) for reliable wireless communication, and is equipped with the HX6610S charging chip, offering reverse polarity protection for safe and stable power management.
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.
Sample Code For Reference [Github]
If you need technical support please check below link to find more details.
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