Uninterrupted Precision for Critical Inspections: Flaw Detector Battery Power extended field inspections with confidence. This RRC2040-2 / KSE2040-2 replacement smart battery pack is engineered exclusively for the Olympus EPOCH 650 Ultrasonic Flaw Detector. With a high 74.52Wh (6900mAh) capacity and stable 10.8V output, it provides the long-lasting, reliable energy required for demanding non-destructive testing (NDT) applications in aerospace, welding, pipeline, and structural inspections.