3.7V 380mAh 25C Lipo Battery for Syma X21W X21 RC Quadcopter<br><br><strong>[Specifications]</strong><br>- Capacity: 380mAh<br>- Voltage: 3.7V<br>- Battery type: Lithium Polymer Battery<br>- Continuous Discharge Rate: 25C<br>- Battery Size: 27 x 27 x 7.6mm