3V CR 1/2AA Lithium Battery w. cord and plug (PCU)
Varta

Lithium Backup Battery for Siemens SINUMERIK PCU and SIMATIC IPC
This high-performance lithium battery is designed as a direct OEM replacement for Siemens PCU and industrial PC systems where reliable backup power is essential for protecting system data and ensuring operational reliability. The battery provides stable 3.0V output and a capacity of 950 mAh, ensuring long service life and dependable performance in demanding industrial environments.
The battery features an XHP-2 connector for quick and easy installation and has compact dimensions of approx. Ø14.75 mm x 25.1 mm. It is widely used in Siemens SINUMERIK PCUs and SIMATIC industrial PC systems including SIMATIC BOX PC 620, BOX PC 627, BOX PC 820, PANEL PC 670 and PANEL PC 677 as well as other industrial control and CNC applications.
This battery is a direct replacement for Siemens A5E00331143 and DMG MORI 2619669 and is technically identical in function and performance to the original OEM batteries, making it ideal for service, maintenance, and preventive replacement in industrial environments.