Memory Card Battery Date Code Location - HP 8590 E-Series User Manual

Changing the Memory Card Battery
It is recommended that the memory card battery be changed every 2 years. The battery is a
lithium commercial CMOS type battery, part number CR 2016 or HP part number 1420-0383.
Note
The minimum lifetime of the battery (under ordinary conditions) is more
than 2 years.
The date that the memory card battery was installed is either engraved on the side of the
memory card or written on a label on the memory card.
If the memory card does not have a label with the date that the battery was installed, use
the date code engraved on side of the memory card. The date code engraved on the memory
card consists of numbers and letters engraved in the black plastic on the side of the memory
card. See Figure 2-8. The first number indicates the year, the following two characters indicate
the month, and the following number indicates the week in the month that the memory card
battery was installed. For example, 8OC3 indicates the battery was installed in the third week
in October in 1988.
Figure 2-8. Memory Card Battery Date Code Location