New 4 pack good until Oct 2029 Good for car security systems and keyless entry fobs, home security system, such as windows or door sensors and alarming fobs, garage door openers, remote controls for devices like ceiling, fans, doorbells, and fireplaces, medical devices, such as glucose meters, other electronics, including some GPS trackers, calculators, and Bluetooth headsets These also are known as V23GA and GP23PA
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