Description:A model fit for ONE X2. B fit for ONE R.High-capacity Li-ion rechargeable batteries can last your camera running time.Built-in over charge, over voltage, over current and over heating protections.Made of plastic, high performance and long lasting use.Each battery features 3.8V, 1700mAh / 1190mAhSpecification:AApplicable: for ONE X2Model: FB-CINORBTB-ONEX2Rated capacity: 1700mAhRated voltage: 3.85VBattery weight: 30gCharging limit voltage: 4.35VSize: approx. 61x14.2x43.2mm / 2.4x0.56x 1.70 inch BModel: FB-CINORBTB-ONE RApplicable: for ONE RRated capacity: 1190mAhRated voltage: 3.85VBattery weight: about 30gCharging limit voltage: 4.35VSize: approx. 72.3x28.3x15.2mm / 2.84x1.11x0.59 inchPackage Includes:1 Piece Battery Note:1. Please allow slightly error due to manual measurement.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item.3. Wish you a wonderful on-line shopping!