with battery suppliers that specify the warranty replacement of battery systems based on Defective DC Cell Resistance measurements. Submitting defective Cell Resistance data to the battery manufacturer will facilitate servicing of the battery warranty. The data must include at least two consecutive cell resistance readings.
TESTING METHODS AND TEST EQUIPMENT: Network and maintenance technicians shall conduct battery testing and maintenance routines based upon internal DC Cell Resistance testing. The DC Cell Resistance battery tests are conducted on a Three Times Per Year (4-month intervals) schedule to provide trended data and pass/fail data.
Note: Measure only the DC Cell Resistance on OSP battery systems that do not have connectors bolted or strapped between each battery block. Some systems only CLIP into a wiring harness and do not have solid connectors or straps that can be measured.
This company''s experience with these OSP VRLA battery systems has indicated that after 1-3 years of service, the battery system can no longer maintain greater than 80% capacity, and replacement is
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