... battery pack for the skiboot, heated clothes, heated gloves, heated products3.7V, 2200mAh, 3.7V, 4000mAh.7.4V, 3500mAh, 7.4V, 5600mAh11.1V, 3000mAhFully waterproof battery ... for the skiboot, heated clothes, heated gloves, heated products4.2V, 2A, 4.2V 2*2A8.4V, 3A, 8.4V, 2*1AWhole systems ...