Johnson Controls 300 Series Manual page 96

96 Network Control Module 300 Series Technical Bulletin
Ordering and Using the Battery Tester
To order the battery tester, contact:
Applied Control Concepts
8865 North 55th Street
Milwaukee, WI 53223
(414) 362-7880
Refer to part number NU-BATTST-0, which includes connector
cables. (Replacement connector cables are also available separately
through Applied Control Concepts [part number NU-BATCBL-0].)
Before you use the battery tester, make sure the NCM battery is fully
charged. Installation in an operational NCM for at least 8 hours before
performing the test charges the battery. Performing the battery test on
a discharged battery yields an erroneous defective battery status.
Follow these steps before using the battery tester:
1. Remove the battery/DRAM cover.
2. Inspect the connectors to ensure that the connector pins or wires
have not been bent, broken, or pulled out.
3. Remove the battery pack. (Power can remain on for the NCM
when you remove the battery pack.)
There are no internal self tests for the battery pack. The tests presented
in this section isolate the problem to the battery or the battery charger.
Refer to Figure 38 and follow the procedure in this section to test the
battery.
To Battery
Figure 38: Measuring the Voltage of the Battery
Battery Test
A defective charger may not provide full battery capacity; in severe
cases, it could actually drain the battery.
Battery
Tester
White
Red
To NCM
ncmbattry