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Additional Information Page 282
3.7.6 Battery Current Drain/Battery Life Time
HIT440 measures the battery current at the reference frequency with an input of 60 dB SPL. The battery pill
is placed in the hearing aid battery compartment and connected to the test box using the corresponding plug
as illustrated below. Prior to the measurement remember to perform the Reference Test Gain and set the
volume control to the correct position.
Insert battery pill:
Connection to the test box:
The battery life time can be estimated for both coil and microphone.
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