Batteries; Battery Selection; Conventional Coin-Cell Lithium Battery (Ic698Acc701A, Ic698Acc701B); Conventional Auxiliary Battery (Ic693Acc302) - Emerson PACSystems RX3i User Manual

PACSystems™ RX3i Battery & Energy Pack User Manual
GFK-2741K
Section 2:
2.1

Battery Selection

2.1.1 Conventional Coin-Cell Lithium Battery (IC698ACC701A,
IC698ACC701B)
The conventional coin-cell lithium batteries are relatively small and have the advantage of
fitting inside the battery compartment of compatible CPUs. The disadvantages are limited
memory retention time, limited CPU compatibility, and no support for low battery
detection.
2.1.2

Conventional Auxiliary Battery (IC693ACC302)

The conventional auxiliary battery should be used where maximum memory retention time
is desired; no other battery has a better memory retention time. It is compatible with all
PACSystems CPUs requiring a battery for memory retention. The disadvantages are that
external mounting is required due to battery size and it does not support low battery
detection.
2.1.3 Smart Coin-Cell Lithium Battery (IC698ACC701, Revision
C and Later)
The smart coin-cell lithium battery is an improvement on the conventional coin-cell lithium
battery and adds reliable low battery detection for compatible CPUs at the expense of
reduced memory retention time. The improved battery is slightly larger, but is still able to
fit into the battery compartment of compatible CPUs. The disadvantages are reduced
memory retention time as compared to conventional batteries and limited CPU
compatibility. For CPUs that do not support low battery detection, the conventional coin-
cell lithium battery may be a better choice as it will provide longer retention time.
2.1.4

Smart Auxiliary Lithium Battery (IC695ACC302)

The smart auxiliary lithium battery is an improvement on the conventional auxiliary lithium
battery and adds reliable low battery detection for compatible CPUs at the expense of a
slight reduction in memory retention time. The disadvantage is that external mounting is
required due to battery size. For CPUs that do not support low battery detection, the
conventional auxiliary lithium battery may be a better choice as it will provide longer
retention time.
2.1.5

Rechargeable Battery (IC690RBT001)

The rechargeable battery is designed for customer applications that use memory retention
on a cyclical basis. Customers who shut down equipment and rely on battery backed
memory on a daily or weekly basis should consider the use of this battery. It is compatible

Batteries

Batteries
Section 2
Feb 2021
3