This product is part of the Easy modicon M200 range, an offer of logic controllers for up to 168 IO. This button battery is a separate part for Easy Modicon M200 logic controller. This accessory is an RTC lithium battery. This battery provides backup power to the processor's non-volatile memory. Its capacity is 0.19Ah at 3V. Its duration capacity is up to five years. It is made of Li-CFx (Lithium-Carbon Monofluoride). Its diameter is 20mm, its thickness is 3.2mm. It weighs 0.025kg The PLC battery is an essential component, it prevents loss of programmed software logic and PLC configuration in the occurrence of a power outage. This battery is specially designed for Modicon M200 logic controller. It installs in a specific slot on top of controller. Entry-level plc perfectly suited to meet specific needs of emerging markets at an affordable price without compromise. Best performance/price ratio solutions for your small automation systems requiring flexibility and simple motion.