MAN0974-14-EN_XL7_XL7P_UM
July 6, 2022
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21.8 Backup Battery
The XL7 has an advanced battery system that uses a rechargeable lithium-ion battery. The battery powers
the real time clock when power is removed. To store registers, the battery continues to power the OCS
for less than a second after external power is removed. In this time the registers and other retentive data
is saved to internal flash memory. This battery will need about eight (8) hours of charging to last
approximately two (2) years when powered off.
NOTE:
For the registers to be retentive the battery only needs to be charged and present at power down.
The battery will generally last seven (7) to ten (10) years. Environmental conditions, including extreme
temperatures and humidity, can affect battery life. If the battery is older than seven (7) to ten (10) years
old, it is recommended that it be replaced as preventative maintenance.
NOTE: Do not use an alkaline AA battery; only use the proper battery type listed.
WARNING: DO NOT USE IF BATTERY IS LEAKING OR HAS BEEN DAMAGED.
WARNING: LITHIUM BATTERIES MAY EXPLODE OR CATCH FIRE IF MISTREATED.
DO NOT RECHARGE, DISASSEMBLE, HEAT ABOVE 100° C (212° F) INCINERATE, OR PUNCTURE.
WARNING: EXPLOSION HAZARD
–
BATTERIES MUST BE ONLY BE CHANGED IN A AREA KNOWN TO BE
NON-HAZARDOUS.
WARNING: Disposal of lithium batteries must be done in accordance with federal, state, and local
regulations. Be sure to consult with the appropriate regulatory agencies
before
disposing batteries. In
addition, do not recharge, disassemble, heat or incinerate lithium batteries.
WARNING: Do not make substitutions for the battery. Be sure to only use the authorized part number
to replace the battery.