GP-Lithium-9V-Battery-800mAh-CR-V9-PP3-GP-GPPVLCRV9000-P-The-GP-Lithium-9V-battery-is-the-best-choice-of-battery-for-user-replaceable-electronic-devices-It-can-provide-5-times-longer-lasting-power-than-an-ordinary-alkaline-battery-and-a-10-year-service-life-in-ionization-type-smoke-detectors-P-P-It-comprises-of-a-number-of-superior-features-including-high-energy-density-high-voltage-excellent-performance-at-extreme-ambient-temperatures-wide-operating-temperature-superior-safety-de