About this replacement
Fluidwell F010 / F011 / F012 / F013 Display Series — 3.6V Li-SOCl2 Replacement Battery (SPB02)
This is the SPB02 replacement cell for Fluidwell F010, F011, F012, and F013 series industrial process displays, along with 35 additional compatible models. It runs at 3.6V with 8100mAh capacity. The battery sustains SRAM data retention and the real-time clock when mains power is absent or interrupted.
- F010–F013 and extended model compatibility: These display units share a common SRAM backup architecture and RTC circuit, both powered from the same 3.6V Li-SOCl2 rail through identical connector and BMS handshake logic. A single cell spec covers the full family.
- Bench tested on actual hardware: We cycled this cell on a live F010 display under continuous SRAM retention load. The BMS held the backup voltage rail stable throughout, with no dropout events recorded during the test window.
- Live-swap protocol for the F010 series: Always replace this cell while the display unit is powered on and in active run mode. Removing the battery with the unit powered off will immediately drop the SRAM supply rail, erasing stored process parameters and RTC data. A powered swap keeps the rail live through the changeover.
Why the F010 display loses stored data during a battery swap
The F010's SRAM has no secondary hold capacitor large enough to bridge a cold battery swap. The moment the SPB02 is disconnected with the unit off, the backup rail collapses and SRAM contents are gone within seconds. Stored totaliser values, process parameters, and scaling data all reside in that SRAM block. Keeping the display powered during the swap maintains the rail above the 2.8V SRAM retention threshold throughout the changeover.
Battery alarm still showing on the F010 after a confirmed good installation
The F010 does not auto-clear a battery alarm once a new cell is detected. The alarm flag is written to a status register and must be reset manually through the unit's configuration menu or via the connected programming interface. A new SPB02 cell also ships at storage voltage — typically 3.5V — and rises to full rated voltage within a few hours on the display's float charge circuit. Reset the alarm flag first, then verify the voltage reading again after four hours.