User`s manual

PK2100
G-2 s Appendix G: Battery
Storage Conditions and Shelf Life
The battery on the PK2100 will provide approximately 9,000 hours of
backup for the real-time clock and static RAM as long as proper storage
procedures are followed. Boards should be kept sealed in the factory
packaging at room temperature until field installation. The board should
not be exposed to extremes of temperature, humidity or contaminants.
The backup time is affected by many factors including the amount of time
the board is unpowered, size of static RAM, temperature, humidity, and
exposure to contaminants including dust and chemicals. Protection
against environmental extremes will help maximize battery life.
Instructions for Replacing the Lithium Battery
Use the following steps to replace the battery.
1. Locate the three pins on the bottom side of the printed circuit board
that secure it to the board.
2. Carefully de-solder the pins and remove the battery. Use a solder
sucker to clean up the holes.
3. Install the new battery and solder it to the board. Use only a
CR2354-1GU or equivalent.