Perfect for my little robot car. Use it together with Unihiker and expansion board. The batteries are a little more difficult to put in/out - but they hold up under difficult conditions and don't fall out.
A nice portable power pack can help you a lot when you build up you projects. Come and make one with this 3×AA battery holder. It can fit three AA battteries in series and employ PH2.0-2P interface.
Specification
Battery Type: 3 AA Batteries
Connection Method: Series Connection
Interface Type: PH2.0-2P
Battery Case Dimensions: 57mm x 46.5mm x 15.3mm/2.244 inches × 1.831 inches × 0.602 inches