Tenergy 7.4V 900mAh LiPo Battery 2 Packs 25C High Discharge Rate Rechargeable RC Battery Pack for Blade CX, CX2, CX3 Helicopter with 1-4 Cells LiPo/LiFe Balance Charger 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. Can fly the Blade CX/CX2/CX3 helicopter higher and smoother. Battery 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) Safety protected balance charger- With built-in balancer, LiPo hobby batteries are automatically balanced during charging, ensuring full charge for 1S to 4S LiPo/LiFe battery packs with XH type balance connector. The airsoft LiPo battery charger is safety protected with reverse polarity, short circuit, over-charge, and over-current protections. Buy with confidence, your charger includes a 12-month warranty. 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). <span class="a-text-bold">DO NOT</span> 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. Input: DC 10-16V, 1.0-1.5A Output: DC 4.2V-16.8V (LiPo) / DC 3.6V-14.4V (LiFe) Charging Current: 1.0A Applicable Battery Types: LiPo/Li-ion/LiFeO4 Reserve Polarity Protection: YES Short-Circuit Protection: YES Input Voltage Protection: YES Dimensions: 3.5&#034; x 2.3&#034; x 0.7&#034;  / 88 x 57.3 x 16.8 mm Weight: Approx. 3.5 ounces / 100g (Charger) + 3.9 ounces / 110g (Adapter) <span class="a-text-bold">DO NOT</span> charge the following types of battery: * Lead acid battery or VRLA * NiMH or NiCD battery pack * Non-rechargeable battery (explosion hazard) * Faulty or damaged battery * Any other types except for LiPo/Li-ion/LiFePO4 battery packs. <span class="a-text-bold">NEVER</span>attempt to charge 2 battery packs simultaneously. 1 x 1-4 Cells LiPo/LiFe Balance Charger 2 x 7.4V 900mAh 25C LiPo Battery Pack