Common Sense RC (2 Pack) Lectron Pro 11.1V 950mAh 30C Lipo Battery with JST Connector for the Blade 200 SR X, CX4 , & T-Rex 250 Lectron Pro batteries feature a high-end performance and reliability at an affordable price! Battery Voltage: 11.1V | Capacity: 950mAh | Maximum Continuous Discharge Rate: 30C (28 Amps) | Maximum Charge Rate: 2C (1.9 Amps) Battery Dimensions: 77mm x 30mm x 19mm / 3.04in x 1.18in x 0.75in | Weight: 71g Works great with Blade 200 SR X, CX4 , & T-Rex 250 (Always check the voltage, dimensions, and battery connector to ensure this battery will be a good fit for your vehicle/application) We're confident in quality of our batteries! All Lectron Pro batteries are covered by a 1 Year Warranty against any manufacturing defects and U.S. based support in case you run into any issues!