Features: Discover the super DIY Power Banks , featuring 8x 18650 battery box with Type C and Double USB outputs, offering a smooth no welding assembly for enthusiasts. Crafted from strong ABS material, this Power Banks shell is available in black and white, providing automatic identification of charging current with Double USB output option for multifunction use. Ideal for individuals and DIY hobbyists who enjoy customizing their own power solution without the need for soldering or complex tools. Perfect for both indoor and outdoor Situation, whether you're at homes , in this office, or on adventure, ensuring your devices stay charges wherever go . With build in safety features like overcharge, over discharge, and short circuits protections, this ensures reliable Performances while allowing you to Designs your Power Banks to your specific needs. Specifications: Material: ABS Type: standard/fast charging(optional) Battery: Not included Size: about 6.9x9.6cm/2.72x3.78inch Standard version Double USB output: 5V/2.4amp (maximums) Input: 5V/2.1amp Input interfaces: typec port and tiny port ( not supported) Fast charging version USB output: 5V/3A, 9V/2A, 12V/1.5A (Simultaneous output from multiple port is only 5V); IN input (tiny ) : 5V/3A, 9V/2A; (Supports 5V charging and discharging simultaneously) typec output: 5V/3A, 9V/2A,12V/1.5A(Output only when supporting protocol); typec input: 5V/3A, 9V/2A, 12V/1.5A; :18W; PD20W; : 22.5 W Package Includes: 1 set DIY Power Banks(battery excluded) note: Please allow 1 to 3cm error due to manual measurement, please make sure you not mind before you bid, Due to the differences between different monitors, the picture may not reflect the actual colorful of the item.