Features: 35-Slot super large capacity power bank case (only the case, not including the battery), can accommodate 35 18650 batteries, without welding. Equipped with charging cable with multiple interfaces, can only be used with a flat top 18650 battery (excluding 18650 batteries). Made from quality materials with high strength, impact resistance, high temperature resistance, and durability. Digital display, with lighting function. Widely used in outdoor tourism, camping, hiking, etc. Specifications: Material: ABS Color: White, Black(optional) Type: 10W Standard Version, 22.5W Fast Charging Version(optional) Size: Approx. 178x82x105mm/7.0x3.2x4.1inch 10W Standard Version Output/Input Power: up to 5V2.1A 22.5W Fast Charging Version Parameters: Output/Input Power: up to 5V3A, 4.5V5A, 5V4.5A, 9V2A, 12V1.5A Note: Only housing, without batteries, it can be used when the customer buys the battery separately and DIY assemble them(not included). Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution. Package includes: 1 Piece DIY 35 Sections 18650 Flat Head Battery Power Bank Housing(excluding batteries)