Sanyo SDNR - Coin-Type Lithium Battery; Battery Usage; Battery Mounting Procedure

DISPLAY PANEL MANUAL
11-5
11.2 Coin-type Lithium Battery
11.2.1 Battery Usage
 The battery is used for the user memory area (non-volatile memory $L and $LD, storing sampling data, etc.)
in SRAM, or backup battery for the built-in clock.
11.2.2 Battery Mounting Procedure
Battery is set at shipping.