Battery Powered Laptop Charger

thingiverse

This is a project that charges laptops using high-voltage batteries. It includes detailed schematics and files for replication. The charger can provide a steady 5 amps at all output voltages, meaning that 20 volts would supply 100 watts of charging power. The project is highly specific to my setup, but it works well as long as the configuration remains identical. A USB wire with a Lenovo rectangle connector is necessary, and modifications may be needed to allow the laptop to draw more current than usual. Included is a schematic for an 85% efficient buck converter that converts high-voltage batteries to a regulated 20 volts to charge laptops. The output USB does not currently support any protocols to adjust voltage, so the output remains at a constant 20 volts. The list of required components can be found in the schematic, but other parts are also needed (and can be obtained inexpensively). These include: XT60 connectors USB connectors 12-volt non-pwm fans If you want to recreate this project, I will do my best to guide you through the process.