Common Sense RC (2 Pack) Lectron Pro 7.4V 1350mAh 25C Lipo Battery with EC2 Connector for HobbyZone Delta Ray and Firebird Stratos Lectron Pro batteries feature a high-end performance and reliability at an affordable price! Battery Voltage: 7.4V | Capacity: 1350mAh | Maximum Continuous Discharge Rate: 25C (33 Amps) | Maximum Charge Rate: 2C (2.7 Amps) Battery Dimensions: 70mm x 35mm x 16mm / 2.8in x 1.4in x 0.6in | Weight: 70g Works great with HobbyZone Delta Ray and Firebird Stratos (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!