About The Lithium And Lead Acid Batteries - Kronos 4000 series User Manual

Chapter 4 Maintaining the Timeclock

About the Lithium and Lead Acid Batteries

This section describes the two types of batteries used by the Series 4000
timeclock.
Each Series 4000 timeclock is equipped with a lithium battery. As an option, you
can also install a lead acid battery for backup power in the event of a power
outage.
Note
Be sure to check all local and national regulations pertaining to the proper storage
and disposal of batteries.
Lithium Battery
The lithium battery is a 3 VDC battery that powers the timeclock's internal real-
time clock if external power is lost. You cannot perform any timeclock operations
while the timeclock is operating on lithium battery backup.
You should replace the lithium battery when it is 3 years old or if the date and time
do not reset correctly after a power failure.
To replace the lithium battery, do the following:
1. Open the timeclock's cover by using the security wrench to loosen the
security screw on the right side of the timeclock.
2. Use a nonmetallic pointed tool to remove the lithium battery.
3. Install the new lithium battery.
4. Close and lock the timeclock cover using the security wrench.
4-6 ADP, Inc.