Tenergy 7.4V 900mAh LiPo Battery Pack High Discharge Rate 25C Rechargeable RC Battery Pack for Blade CX, CX2, CX3 Helicopter, 2-Pack Can fly the Blade CX/CX2/CX3 helicopter higher and smoother. Right size, fits perfectly in CX/CX2/CX3. No modification needed! Same discharging and balancing connector as factory pack. It can be charged on the factory charger. Plug and Play! ONLY use a LiPo Balance Charger for charging this battery. Continuous Discharge Rate: 25C / 22A. Burst Discharge Rate: 50C / 45A. Dimensions: 73.5 x 25.5 x 14.5 mm/ 2.89" x 1.00" x 0.57" (Max). Weight: Approx. 50g / 1.76oz Discharge (Output) Leads: 20 AWG silicon wire, 97 mm long, JST(BEC) connector (Same as the factory pack). Charging (Balancing) Lead: JST(Align, E-flight) Style 3-pin connector. 24AWG PVC wire, 38 mm Long (Same as the factory pack) Wanna fly the Blade CX/CX2/CX3 helicopter higher and smoother? Try this new 25C pack specially designed for Blade CX2 helicopter. The newest battery upgrade for the Eflite Blade CX/CX2/CX3: - gain 12% more flight time over stock battery - delivers more than twice the power with its 25C rating --- beyond almost any other battery - fits the stock battery tray perfectly and work with the stock charger. This Tenergy Lithium polymer battery is rated at 900mAH 25C and is made for the Blade CX/CX2/CX3, while the stock battery is rated at 800mAh; it means this Tenergy battery will provide much longer runtime. This battery will work with the e-flight charger and fits inside the CX helicopter without any modifications - direct replacement but a better battery; great quality and an exceptional value! Battery Voltage: 7.4V Battery Capacity: 900mAh Continuous Discharge Rate: 25C / 22A Burst Discharge Rate: 50C / 45A Discharge (Output) Leads: 20 AWG silicon wire, 97 mm long, JST (BEC) connector (Same as the factory pack) Charging (Balancing) Lead: JST (Align, E-flight) Style 3-pin connector. 24AWG PVC wire, 38 mm Long (Same as the factory pack) Dimensions: 73.5 x 25.5 x 14.5 mm/ 2.89&#034; x 1.00&#034; x 0.57&#034; (Max) Weight: Approx. 50g / 1.76oz <span class="a-text-bold">ONLY</span> use a LiPo Balance Charger to recharge this battery. <span class="a-text-bold">DO NOT</span> use a NiMH battery charger to charge this battery. <span class="a-text-bold">IMPORTANT:</span> NiMH chargers can be included with your RC Car or Heli purchase - do not use it with this LiPo battery. <span class="a-text-bold">INSPECT</span> battery pack for damage (puffiness, broken wires, punctures, etc). DO NOT recharge if damaged. <span class="a-text-bold">COOL</span> batteries if they are warm during usage or charging. <span class="a-text-bold">ALWAYS STORE</span>batteries in a cool location. <span class="a-text-bold">NEVER</span> leave LiPo batteries in warm places. <span class="a-text-bold">DO NOT</span>overdischargeyour battery, stop usage ifrateof fire drops. <span class="a-text-bold">KEEP</span> LiPo Batteries out of reach of children and pets. **Failure to follow these warnings may result in fire or personal injury.