LILYGO T-Bat
Solar-capable power management module based on CN3065 for charging an 18650 Li-ion battery via Micro USB, solar panel input (5.3V+), or BAT input, with 5V/1A USB output for powering devices up to 1A current draw.
$3.56
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Specifications
Components
CN3065 power management IC supporting solar panel and USB input for 18650 Li-ion battery charging with 5V/1A output
Overview
The LILYGO T-Bat is a compact power management module designed to harvest solar energy or USB power to charge an 18650 3.7V lithium-ion battery using the CN3065 charge management IC. It accepts three input sources: a standard Micro USB connector, a 2-pin 2.0mm solar panel connector (5.3V+), and a 2-pin 3.7V BAT connector. The output is a 5V/1A USB Type-A female connector plus an additional 2-pin output header, enabling the module to act as a small solar-powered power bank for microcontrollers and IoT devices. Red and green LED indicators signal charging status and power-on state. The manufacturer recommends use only for devices drawing up to 1A and not for charging smartphones.
Use Cases
3IoT
Internet of Things applications including connected sensors, actuators, and smart devices that communicate over WiFi, BLE, LoRa, or other wireless protocols.
Environmental Monitoring
Monitoring environmental conditions like temperature, humidity, air quality, and weather data using remote sensors.
Field Data Logger
Battery-powered device for recording sensor data, GPS coordinates, and environmental measurements in the field.
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