Compact Liion charging and boost module for 18650 cells that combines a battery charger with a DCDC stepup converter. It accepts TypeC or Micro USB input, charges a single 18650 lithium cell, and provides a boosted DC output at 5V, 9V, or 12V up to 15W (3A). The integrated fast booster enables a portable UPS style power supply for small devices and projects. Key benefits Flexible input options: TypeC or Micro USB input for convenient charging from modern or legacy power sources. Liion battery charging: designed to work with a standard 18650 lithium battery to store and deliver power. Versatile output: DCDC boost provides 5V, 9V, or 12V output to suit different devices and applications. power capability: up to 15W total output, with up to 3A available for the boosted voltage. Fast and reliable boost: stepup converter delivers a stable higher voltage from a singlecell battery. UPS style operation: can function as a portable backup power supply for compatible loads when main power is unavailable. Compact and DIY friendly: suitable for integration into power banks, projects, or small gadgets. Key attributes Functionality: Liion 18650 charger module with an integrated DCDC boost converter (5V/9V/12V) for fast charging and voltage boost. Compatibility: supports charging a single 18650 lithium battery; input via TypeC or Micro USB. Output options: selectable boosted voltages of 5V, 9V, and 12V. Power rating: up to 15W output, with a maximum of 3A charging/boost current. Form factor: designed as a compact charger and booster module suitable for DIY applications. Reliability: built to provide a combined charging and boosting solution in a small package. Applications and use cases Portable USB charging solution: use the TypeC or Micro input to charge an 18650 cell and draw 5V USB power from the boosted output to charge phones, tablets, or USB devices on the go. Small device UPS: in a power outage or on a workbench, convert stored energy from the 18650 cell to a higher voltage (5V/9V/12V) to keep critical small electronics running. DIY power projects: power microcontroller projects, sensors, or small equipment that require a 9V or 12V supply from a single Liion cell, or provide a flexible 5V output for USBpowered devices. Usage notes Connect a single 18650 lithium battery to the charger/boost module according to the device's wiring, then connect a TypeC or Micro USB power source to the input to charge the battery. Select the desired boosted output (5V, 9V, or 12V) for your load, up to the 15W/3A maximum. Use the boosted output to power compatible devices or projects that can operate from 5V, 9V, or 12V. This description reflects the product's brand, specifications, model type, and core features as stated in the title: a TypeC/Micro input 15W 3A 18650 Lithium Battery Charger Module with a DCDC 5V/9V/12V stepup booster, described as a fast converter UPS power supply variant (9V TypeC).