Turnigy 5000mAh 4S1P 14.8v 20C hardcase pack Specs: 5000mAh 4S1P / 14.8v / 4CellConstant Discharge: 20C =&gt; Max Charge Rate: 5cWeight: 528grams =&gt; Pack Size: 139 x 45 x 44mmDischarge plug: 4mm Bullet-connector