3S3000T: 11.1 volt 3000mAh motor battery with red "T" connector. This battery is an Upgrade to the 2200-2300 version. Fits Quads, Helis, Airplanes, Cars, boats, trucks. Size: 108.00*28.00*35.00mm (4.25*1.10*1.37inch). Weight = 7 ounces. Re-charges with smart Li-PO chargers such as B3AC, YT-006S, UP100AC, X4AC Pro, etc.