S.H.O. – Super high output! – The best, the fastest, the meanest 1s racing pack available, now tweaked for more power at the expense of a little runtime. Over 7400 mAh. Ultra low IR (internal resistance), Ultra HIGH average discharge voltage. This pack re-writes the the definition of 1s performance. PACKED with POWER! Wicked high 4 volt number. 93 x 46.8 x 18 mm – 5mm bullet connectors