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2.1.3. Battery
The battery is required to keep the BIOS settings and the real-time clock stored into the
CMOS RAM. The board is shipped from factory with the battery electrically disconnected
from the board. Before powering the board, the battery must be connected using the W4
CMOS backup source jumper.
Related Jumpers
BIOS Settings
The battery specifications are as follows: 3.6V Lithium battery, 0.37A/h
Installation
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W4: Internal or external CMOS backup source selection
Setups are described in Section 2 – Setting Jumpers
None
Connect the battery to the B1 header. The positive pin of the battery is
located at the bottom center.
The onboard battery power can be replaced by an external power source by
connecting a 3.6V power to the J14 External Battery connector. When
using an off board battery source, W4 jumper must be set to position 2-3.
Warning
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.
2-3
Onboard Features
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