Features: 8 compartments with springs for holding batteries, keep your batteries organized and protected. Great capacity, stores 1-8pcs AA batteries simultaneously. Connect batteries in series, which can be used as an external power source, the output voltage can be up to 12V. With ON/OFF power switch and sliding closure that can be locked by screw, easy to carry. Made of high-quality ABS, resistant to impact, solid and durable. Specifications: Color: Black Quantity of Storage: 1-8pcs AA Batteries Material of Case: ABS Material of Coil Spring: Nickel Plated Steel Size: Approx. 13cm x 7.3cm x 2 cm Length of Wire: Approx. 15cm Output Voltage: 12V Weight: 76.5g Package Included: 1 x Battery Holder Case Note: Batteries or screws are not included. .Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.