18650 Battery Case Holder with Lead Wire Bundle, 4 Pcs DIY Battery Storage Boxes, 1 Slots, 2 Slots, 3 Slots, 4 Slots Black Plastic Batteries Case with Pin Product description Specification: 1. 4 Types of Battery Holder:1 x 3.7V aa battery holder with leads 2 x 3.7V battery holder with wires 3 x 3.7V battery holder 3 4 x 3.7V battery holder 2. 1..