IEI Integration NOVA-PV-D4251_D5251 v1.10 - Manual (Page 39)

NOVA-PV-D5251/D4251 5.25" SBC
Page 23
3.2.2 Battery Connector
CAUTION:
Risk of explosion if battery is replaced by an incorrect type. Only
certified engineers should replace the on-board battery.
Dispose of used batteries according to instructions and local
regulations.
CN Label: BAT1
CN Type: 2-pin wafer (1x2)
CN Location: See Figure 3-4
CN Pinouts: See Table 3-4
This is connected to the system battery. The battery provides power to the system clock to
retain the time when power is turned off.
Figure 3-4: Battery Connector Location