21700 Holder PD 20W Fast Charging Built-in Cable Detachable Power Bank DIY Battery Case

Features 1. Solder-free design ensures safer, more convenient DIY assemblyno soldering required, ideal for electronics enthusiasts seeking quick setup 2. Supports up to PD 20W output, compatible with mainstream Type-C devices for faster charging and enhanced efficiency 3. Features a detachable dual-cable Type-C design for easy storage, eliminating the hassle of forgetting charging cables on the go 4. Shell allows effortless disassembly for battery replacement or circuit board maintenance, extending product lifespan 5. Specifically designed for single 21700 batteries, compact size ideal for outdoor activities, commuting, and on-the-go use Housing Material: Eco-friendly plastic shell Colors: Black/Gray Recommended: 1 flat-top 21700 battery Installation Note: Distinguish positive/negative terminalsspring indicates negative Mainboard Configuration: USB fast-charge output port + Type-C bidirectional fast-charge port + integrated Type-C fast-charge cable Integrated Cable Interface: Type-C port dual Type-C connectors Charging Parameters: 5V2A/5V3A/9V2.2A/12V1.67A Output Parameters: 5V2A/5V3A/9V2.2A/12V1.67A/10V2.25A Four indicator lights display battery level. All four lights remain on when fully charged. Green light indicates fast charging status. This kit features multiple protections including overcharge/over-discharge/overvoltage/overcurrent, ensuring safe and reliable use. Package include Power Bank Housing*1