Mighty Max Battery 9.6V 2000mAh NiMH REPLACEMENT BATTERY FOR TYCO FAST TRAXX brand product Made with 8xAA 2000mAh high capacity and high power NiMH Batteries Compatible with all popular RadioShak and Nikko RC Toy cars. Easy operation, battery can be charged anytime without the need to fully discharge. Advnaced NiMH battery technology, no battery memory effect. Dimensions: Height 0.5&quot;; Width 2.3&quot;; Length 4&quot;