Tenergy Combo: 4 pcs of 9.6V 2000mAh Nimh Battery Packs for RC Cars Made with 8xAA 2000mAh TENERGY high capacity and high power NiMH Batteries Advnaced NiMH battery technology, no battery memory effect. Easy operation, battery can be charged anytime without the need to fully discharge. Compatible with all popular RadioShak and Nikko RC Toy cars. Dimensions: Height 0.5"; Width 2.3"; Length 4.0" Connector Type: Standard Tamiya.