Hardware reference guide

Battery Module
486
35013379 02 October 2007
Battery Backup The 140XCP90000 provides RAM backup power for expert modules. One non-
rechargeable 3.6 V lithium battery is provided and is accessible from the front of the
module in Battery Slot 1 (the upper slot) for easy removal when it is necessary to
change it.
Specifications The following table shows the specifications for the battery module.
Note: Extended backup protection is provided when a second battery is installed
in Battery Slot 2 (the lower slot).
Specifications
Battery Type C, 3 V lithium
Maximum Load Current 100 mA
Service Life 8000 mAh
Shelf Life 10 years with 0.5% loss of capacity per year
Battery Part Number 990XCP99000
Note: The formula to calculate the life cycle of one battery in the battery module is:
Life cycle = 1 / (4 x I) days
where I (in Amps) is the total battery current load of all modules in the backplane.
This document provided by Barr-Thorp Electric Co., Inc. 800-473-9123 www.barr-thorp.com