This product is part of the Easy Modicon M200 series, a range of logic controllers for simple machines and 2-axis motion control with up to 196 I/O. The button cell battery is a replacement part for the Easy Modicon M200 logic controller. This accessory is a RTC lithium battery. It provides backup power for the non-volatile memory of the processor. The capacity is 0.19 Ah at 3V. The lifespan is up to five years. It is a Li-CFx (Lithium-Carbon Monofluoride) battery. The diameter is 20 mm, the thickness is 3.2 mm, and it weighs 0.025 kg. The PLC battery is an important component that prevents the loss of programmed software logic and PLC configuration in the event of a power failure. This battery has been specifically designed and is only suitable for the Modicon M200 logic controller. It is installed in a special slot on top of the controller. The Easy Modicon M200 controllers are entry-level products that are perfectly suited to meet the specific requirements of emerging markets at an affordable price without compromise. They offer solutions with the best price-performance ratio for your small automation systems that require flexibility and simple movements.