ON THE WAY&reg;2Pcs BRC18650 3.7V 4000mAh Black&golden Protected Rechargeable High Drain Battery for FlashlighTorch Camera Etc QTY 2 High quality and durable High energy density, long life battery Provides excellent continuous power sources to your device It is good both in low and high temperature perations Fit for camera, watch, calcutors and other electronic devices