Gens ace 400mAh 2s 7.4V 60C Lipo Batteries offers you an excellent combination of weight, power, and performance. These batteries are perfectly made for 250 helicopter and small airplane, no matter you fly indoor or outdoor. They are good for winter flying fun. Suitable for OMP Hobby M1 and Align T15. Features - Stable automatic stacking technology enables single-cell capacities of 400mAh. - Superior cell matched consistency. - Automatic production line to guarantee high quality and consistent performance. - Gens ace batteries provide high quality, reliable power for your RC models. - Local after-sales service (located in Dublin, CA) Specifications - Minimum Capacity: 400mAh - Configuration: 2S / 7.4V / 2 Cells - Discharge Rate: 60C - Max Burst discharge Rate: 150C - Dimension: approx. LxWxH 41x20x13mm - Net Weight (±5g): 18g