Features: The 4x18650 Battery Storage Box is a must have for DIY enthusiasts, allowing you to create your own power bank with ease. This storage box features quick charge with power of 5V 3A, 9V 2A, and 12V 1.5A, ensuring fast and efficient charging for your devices. Designed for all users, this battery holder box is compatible for 18650 flat top batteries, providing a reliable and convenient power solution for everyone. Whether you're traveling, working, this power bank case is perfect for any situation where you need a portable and reliable power source. 18650 batteries are not included in the package, you need to purchase separately. Can only use the 18650 battery of which positive electrode is flat top. Specifications: Material:Plastic Number of batteries: 4x18650 batteries Color:Black,White; Option Type:CX4 Black Power Case,CX4 PD Black Power Case,CX4 PD QiBlack Power Case,CX4 White Power Case,CX4 PD White Power Case,CX4 PD QiWhite Power Case, CX4 Power Case with Light Output/Input:5V2A CX4 PD Power Case Output:5V3A,9V2A,12V1.5A,5V4.5A; CX4 PD Power Case Input:5V3A,9V2A,12V1.5A CX4 PD Power Case Support 15W Wireless Charging; CX4 PD-Qi Power Case Output:5V3A,9V2A,12V1.5A,5V4.5A; CX4 PD-Qi Power Case Input:5V3A,9V2A,12V1.5A CX4 PD-Qi Power Case Support 15W Wireless Charging; Package Includes: 1xPower Bank Case (Battery not include) note: Please allow 1-2cm errors due to manual measurement,please make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.