This Regulator and Charger Module accepts a wide range of DC input sources to charge the included 2300mAh Li-Ion Battery. The module provides a regulated 5V DC (300mA) output via screw terminals to power your electronic projects such as Arduino.
The product on this page is the power module with Li-Ion battery only, it does not include a solar cell. You can also buy this module as a kit with a 3W solar panel.
The Regulator and Charger accepts DC input power to charge the Li-Ion battery via one of three connections:
- mini-USB connector allows you to charge the battery via a PC's USB port or any other USB power source
- 2-pin screw terminal accepts 3.7V to 6V DC voltage sources, such as a solar panel
- 2-pin screw terminal accepts 3.7V to 12V DC voltage sources
The 3.7V to 12V DC input is connected to a step-down voltage regulator, while the other two voltage inputs connect directly to the Li-Ion battery charger, thus providing better efficiency.
A MAX1674 step-up regulator converts the Li-Ion battery voltage to a regulated 5V DC output voltage that is accessible via a 2-pin screw terminal to power your electronic projects.
Solar Module Documentation
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