Power Cell Alkaline batteries are the only alkaline cells certified to deliver maximum life and performance in Traxxas products. Count on reliable, long-lasting power for your TQi radio system, on-board receiver battery, or any of your electronic devices at home. Traxxas Power Cell alkaline batteries are sold in convenient, colourful four-cell packaging and are manufactured to the high standards of all Traxxas products. They're the only alkaline batteries that are made by Traxxas, for Traxxas.