7.4V 5000mAh 2S LiPoDetails: Dynamite's new Reaction 2. 0 batteries come with all the power and performance you've come to expect from the original Reaction line, but now include a QR code directly on the battery label. You can scan the QR with the Dynamite Dashboard Smart Phone App for even quicker and easier setup. In addition, all Reaction 2. 0 hardcase batteries now come in a sleek black color to better match whatever setup you use them in. Features: Fits most 1 8