Walker power Lithium batteries: Long-Lasting 9V Lithium Battery offer the longest lasting power for your high-tech devices. This dependable, light- weight battery offers the latest lithium battery technology that's proven to be the world's longest lasting batteries in high-tech devices. Support Many Device: Smoke detectors, wire tracker, gas meter, lighting fixture, Infrared Thermometer, Laser Thermometer, stud finder, Wall Scanner, water meter, mini max XP, mini photo printer, camera, patrol sensor device, vital signs monitor, optical equipment (binoculars/night vision) SCT, one touch horizon. Battery Model: 9 VOLT,CR9V Technical Specifications: Voltage: 9V Normal Capacity: 600 mAh Self-discharge Rate: <1% per Year Max. Normal Weight: 40 g Operating Temperature: -20℃ ～ 60℃ / -4°F ～ 140°F. Warning: Can Not Be Recharged! Hassle-Free Purchase Package include 8-Pack 9V Lithium Battery. Also we provide 30 days refund, 12 months service, and 24x7 service. Come and Add to Cart Now.