Orpak Systems 812560010 PLC Replacement Battery 3.6V 4000mAh

Orpak Systems Nano Nozzle Reader-T — 3.6V Li-SOCl2 Replacement Battery (812560010)

This 3.6V lithium thionyl chloride cell replaces OEM part 812560010 in the Orpak Systems Nano Nozzle Reader-T (nNR-T). The nNR-T is an industrial PLC-class nozzle monitoring device that relies on this cell to retain SRAM program memory and keep the real-time clock running during power interruptions. Capacity is 4000mAh (14.4Wh).

• Nano Nozzle Reader-T platform fit: The nNR-T uses a 3.6V Li-SOCl2 cell because the SRAM retention circuit and RTC module both require a stable, low-self-discharge source across long standby periods between maintenance cycles. A standard lithium or alkaline cell cannot hold the voltage flat long enough for industrial duty cycles.
• Bench tested on actual hardware: We verified the cell's open-circuit voltage on arrival, confirmed it stabilises under the low-drain float load that mimics SRAM retention current, and checked that the BMS-adjacent protection circuit does not trip during the initial connection event.
• Hot-swap rule for the nNR-T: Always replace this cell with the controller powered on and in RUN mode. Removing the battery while the unit is de-energised wipes the SRAM — program data is gone and must be reloaded from a connected programming device before the nNR-T will resume normal operation.

PLC battery alarm not clearing after a confirmed good installation

The nNR-T does not auto-clear a battery alarm once it detects a new cell. The alarm flag is written into a status register during the low-battery event and stays latched until it is explicitly reset in the programming software. A fresh cell at 3.6V sitting correctly in the holder will still show an alarm until that reset is performed. Navigate to the battery status or diagnostic register in your configuration tool and issue a manual clear before returning the unit to service.

Clock or date reading wrong after the battery was swapped

If the controller was de-energised at any point during the swap, the RTC loses its reference and restarts from a default timestamp — typically epoch zero or a manufacturer reset date. The new cell powers the RTC going forward, but it cannot recover the time that was lost. Connect a programming device, navigate to the RTC configuration screen, and set the current date and time manually. Confirm the value is retained across a controlled power cycle before declaring the swap complete.