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Batteries
2.
Battery Selection
2.1
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. It is
compatible with all PACSystems CPUs requiring a battery for memory retention and no other battery has a better
memory retention time. 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 & 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 with all PACSystems CPUs requiring a battery for memory retention
and is slightly larger than the auxiliary lithium batteries. The disadvantages are that external mounting is required
due to battery and charger size, no support for low battery detection, limited temperature range (0°C – 50°C), and
inability to charge in a hazardous location.
GFK-2741C
March 2015
Batteries
3
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