Energizer Batteries are now available for sale.

Battery life is a critical issue for most wireless mic users. PWS has created graphs showing battery life by testing batteries in various transmitters and measuring voltage over a period of time.

The results of these tests are not scientific, but are actual results with random batteries. No warranty of actual performance is implied or suggested. PWS provides this information only as a service to wireless users.

Test Conditions

• The same transmitter was used to test each of the batteries shown in each graph.

• A data-logging multimeter was used to sample the battery voltage every 30 seconds.

• Current Draw: Each transmitter was checked to insure that its current draw met published manufacturers specs.

• Each battery tested was a new battery with a short 'shelf life'. These aren't old batteries. Each was recently purchased specifically for these tests.

• Each transmitter was tested with no audio input. Bench tests show that actual modulation causes almost no perceptable change in the current draw of the transmitter.