PD3.1 140W Power Bank DIY Module A3 Compact DIY module that adds power USB Power Delivery 3.1 functionality and bidirectional boost to Li battery packs. Designed for builders who need a flexible, fastcharging solution that supports multiple cell configurations and straightforward installation. Key benefits power PD3.1 support up to 140W for charging and powering demand USBC devices. Switchable 2S to 6S battery support lets the same module work with a wide range of Liion pack voltages. IP2366based bidirectional boost enables both boosting battery voltage to deliver output and accepting PD input to recharge the battery. Simplifies DIY power bank and portable power projects by combining fast charging, boost conversion, and cell configuration flexibility in a single module. Easy to install and use for hobbyists and technicians integrating custom battery packs into portable chargers or power stations. Main features Function: USB Power Delivery 3.1 compliant input and output, bidirectional boost converter for charge and discharge paths. Compatibility: Works with 2S, 3S, 4S, 5S, and 6S Liion battery packs and with USBC devices that support PD3.1 charging. Power performance: Rated up to 140 watts for fast charging and load output. Form factor: Compact PCB module designed for DIY integration and straightforward wiring into battery packs and enclosures. User operation: Switchable cell configuration for flexible deployment across different battery assemblies. Use cases: Intended for batterypowered portable power banks, mobile charging solutions, and DIY power systems. Practical applications Build a capacity power bank capable of charging laptops and other power USBC devices using PD3.1 at up to 140W. Create a compact portable power supply for cameras, drones, and field equipment that need reliable boost output from multicell Li battery packs. Integrate into a DIY UPS or portable power station to enable fast recharge from PD sources and bidirectional power delivery to connected devices. What you get A3 model PD3.1 140W power bank DIY module with switchable 2S to 6S support and IP2366 bidirectional boost functionality, ready for integration into custom battery projects. Designed for DIY builders and technicians who need a reliable, power PD3.1 module that supports multiple Licell configurations and simplifies the creation of fastcharging portable power solutions.