Check the listing for details. 1PCS Black Plastic Wired Double Layers 4 x 1.5V AA Battery Case Holder. Condition: New. Listed at 11.80 USD. Specification: Description: This battery box holder with wire connector, fit for 4 x 1.5 V AA batteries. With spring clip and double layers design, you can easily to put the battery in it. Serial Connection. Battery is not included here. Note: Please do not separate, maintain, or the product.The wires are thin, and the structure of this product is only fit for very small current load, DO NOT connect it to a load that will cause large current, stop using this product if the wires are hot. 1. When the battery case is working, the maximum power should be less than 10W, the working current should be less than 2A. 2.Please pay attention to your battery heat generation while using this product and do not use the poor quality battery.Note: Battery is not included.