CMOS BATTERY
The R4 includes a 3V DC type CR2032 battery that supplies the RTC and CMOS memory of the COM Express
CPU module.
IMPORTANT NOTE:
Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent
type recommended by the manufacturer. Dispose of used batteries according to the
manufacturer’s instructions.
To fulfill the requirements of EN 60950, the R4 incorporates two current-limiting devices (resistor and
diode) in the battery power supply path.
©Sealevel Systems, Inc.
R4 Manual
17
SL9260 06/2015
