YEHAM 3.7v 380mah Battery for Syma X11 Hubsan X4 H107c (4) Compatible for Hubsan X4 (H107C-HD), Hubsan X4 (H107C), Hubsan X4 (H107D), Hubsan X4 (H107L), Syma X11C, WLtoys V252, JXD JXD385, Walkera Super CP, Walkera Mini CP, Walkera Genius CP 3.7V 380mAh Constant Discharge Current: 5.7A (15C)Max Dimensions (Max.): 40 x 21 x 7.8mm