Timer Outlet Multifunctional Infinite Repeat Cycle Timer Plug with Countdown Plug with on-Off Programs for Appliances Light Timer 15A-1800W

Multi-function timer socket Scope of application Time switch TV, WIFI rover, floor lamp; Set up regular air purifiers, humidifiers, and essential oil diffusers to work normally even if no one is at home. Control the charging time of apps and make sure they never overcharge. Set the cooking application to work regularly or close. Regular plant lights glow, even if no one goes home, to ensure the healthy growth of plants. When your family travels and pretends to fight the thieves at home, please turn on/off the lights at a fixed time. specification: Model C: T319 White color Material: Fireproof ABS Conductor material: phosphor copper nickel Plug type: American standard plug Rated value: AC 125V 60Hz 15A 1800W Standby power: 0.5w Program backup: Ni-MH rechargeable battery over 100 hours 3-pin socket with ground pin Working temperature: -58?~158? Function diagram type: easy to read-large LCD screen, clear numbers Timer accuracy: /-1 second/day Size: 12.5 * 6.8 * 8cm Net weight: 150g Do I need to replace the battery? How to maintain? The built-in rechargeable battery cannot be replaced. If you do not use it for a long time, please plug the timer into the wall outlet and charge it for about 24 hours every month to maintain the battery.