This is a small DC - DC boost module that converts a 0.9 ~ 5v power source to standard 5V, making it capable of supplying power to an Arduino microcontroller and other small electronic devices that use a 5v input. It integrates a PFM DC-DC boost control chip. The maximum output current is up to 500 ~ 600 mA. There are two power input ports, PH2.0 and KF235-3.81-2P which are compatible with DFRobot's 3.7 V lithium battery. Note: Please pay attenetion to the battery polarity when connecting the battery. Project 1: Free Energy? Charge Your Mobile Phone with Hands Introduction: Wanna charge your phone in the apocalypse? Maybe my hand crank generator can help you. Hardware components DC-DC Boost Module (0.9-5V) 9g 180° Micro Servo (1.6kg) 1N4007 – High Voltage, High Current Rated Diode Capacitor 100 µF Specification * Input Voltage: 0.9 V to 5 V * Output Voltage: 5 V * Conversion Efficiency: 85% (Typ.) * Duty ratio coefficient: 66% to 78% * The input interface: PH2.0; KF235-3.81-2P * Output interface: USB * Size: 43 * 33 mm/ 1.69 * 1.3 inches * Weight: 14g Documents * Schematic * Layout Shipping List * DC-DC Boost Module x1 https://elecena.pl/product/22714742/dc-dc-boost-module-0-9-5v 2023-03-06 https://elecena.pl/product/22714742/dc-dc-boost-module-0-9-5v 2023-12-27 https://elecena.pl/product/22714742/dc-dc-boost-module-0-9-5v 2024-09-19 https://elecena.pl/product/22714742/dc-dc-boost-module-0-9-5v 2024-11-29 https://elecena.pl/product/22714742/dc-dc-boost-module-0-9-5v 2024-11-30 https://elecena.pl/product/22714742/dc-dc-boost-module-0-9-5v 2025-02-14 https://elecena.pl/product/22714742/dc-dc-boost-module-0-9-5v 2025-04-11 https://elecena.pl/product/22714742/dc-dc-boost-module-0-9-5v 2025-08-05 https://elecena.pl/product/22714742/dc-dc-boost-module-0-9-5v 2025-11-28 https://elecena.pl/product/22714742/dc-dc-boost-module-0-9-5v 2025-11-29