Hand Crank Generator 20W Hand Crank Charger with 3V15V Output Why you need this hand crank generator Reliable manual power when no mains power is available. Generates up to 20W using a hand crank mechanism, so you can charge or run small DC devices in remote locations or during outages. Adjustable output from 3V to 15V lets you match device voltage without external converters, making the unit flexible for a variety of equipment. Simple mechanical operation eliminates dependence on fuel or batteries, providing a dependable emergency backup power option. Key benefits at a glance Emergency backup power for lights, radios, and small electronics when grid power fails. Portable and easy to operate for camping, travel, roadside emergencies, and outdoor work. Mechanical charging that works anywhere you can crank by hand, no external power needed. Main features and performance Power output: up to 20W of electrical power. Rotational speed: rated at 2000 rpm per minute for stable generation. Output range: adjustable DC output from 3V to 15V to accommodate a wide range of small devices. Operation: hand crank driven charger for on demand power generation without batteries or fuel. Compatibility and use Compatible with devices that accept 3V to 15V DC input, such as portable lights, small radios, battery packs with matching input, measurement instruments, and certain communication devices when used with appropriate connectors or adapters. Useful wherever low to moderate DC power is needed and mains power is unavailable. Practical use scenarios Camping and hiking: Power LED lights, charge handheld radios, or up a portable battery pack while off grid. Emergency home backup: Operate essential small electronics or keep communication devices running during a short power outage. Travel and roadside assistance: Provide temporary power to small devices from a car, tent, or roadside stop when no charging option is available. Design notes Hand crank operation provides a straightforward, low maintenance power source. Adjustable voltage control simplifies matching output to device requirements without complex setup. Compact and portable for carrying in a backpack, vehicle, or emergency kit. What this product delivers A practical, manual power solution rated at 20W and 2000 rpm that supplies adjustable DC output from 3V to 15V. It is intended for users who need a dependable, portable way to generate power for small devices during outdoor activities, travel, or shortterm power interruptions.