New Original Siemens 6ES7971-1AA00-0AA0 SIMATIC S7 Backup Lithium Battery 3.6V 0.85Ah For S7-300 CPU PLC In Stock
The 6ES7971-1AA00-0AA0 is the original Siemens lithium backup battery for SIMATIC S7-300 series PLC CPUs and S5-90U controllers. With rated voltage 3.6V and capacity 0.85Ah, it provides stable backup power for the PLC internal memory when main power cuts off, which can effectively protect user programs, hardware parameter settings and process data from loss or corruption. Equipped with original wiring harness and 2-pin plug connector, it supports quick plug-and-play replacement without wiring modification. Adopted industrial-grade lithium cell, wide temperature range, stable discharge performance, long service life, widely used in factory automation, packaging machinery, textile equipment, CNC and other industrial control scenarios. We supply brand new original Siemens parts with factory sealed package, 12-month quality warranty, fast global shipping.