2S4000T : 7.4 volt 4000mAh Li-PO battery with Balance & red T connectors
by Batteries America
2S4000T : 7.4 volt 4000mAh rechargeable Lithium Polymer high-performance battery with Balance & red T connectors. Dimensions: Length:2.7 in (68mm), Width:2.0 in (52mm), Height:0.75 in (19mm). Weighs approximately 5 ounces. Includes White JST balance charging connector and red "T" power connector. Maximum output = 40 amps.