How to check the lead-acid battery of a communication base station

When should a battery be left in a test?

Test technicians should avoid leaving a failing/failed cell in a battery prior to the 90%-95% decision time discussed above, especially if it occurs considerably early in the test; 1 hour into a 3 hour test for example. Doing so can significantly skew the overall demonstrated capacity of the battery, invalidating the test results.

How long does a flat plate lead calcium battery last?

Generally speaking, vented flat plate lead calcium batteries can deliver approximately 50 cycles to a depth of discharge of approximately 80%. Depending upon the manufacturer and model of battery, this correlates approximately to a 4 to 5 hour discharge at the corresponding published discharge current to 1.75 VPC (volts per cell).

Does periodic performance testing reduce battery life?

Excessive/unnecessary testing, given enough cycles will certainly reduce battery life. When conducted in accordance with the applicable IEEE recommended practice, periodic performance testing is not considered to be excessive nor unnecessary.

Why is a float test performed directly from a battery?

Performing a test directly from float reflects maintenance practices. An example of poor maintenance includes prolonged battery operation at a float voltage that is below the minimum recommended setting, resulting in undercharged cells. Another is float operation at a temperature lower than recommended by the battery manufacturer.