Lectrosonics LM User Manual download pdf (Page 7)

Frequency-Agile UHF Belt-Pack Transmitter

Battery Installation

The transmitter is powered by a standard 9 volt battery.

We recommend using alkaline or lithium batteries for

longest life. Standard zinc-carbon batteries marked

“heavy-duty” or “long-lasting” are not adequate.

Alkaline batteries provide over six hours of operation at

room temperature. Lithium batteries can provide up to

13 hours and will work at lower temperatures. The

battery status circuitry is designed for the voltage drop

over the life of alkaline batteries. NiMH rechargeable

batteries will also work; although they provide fewer

hours of operation and will run down quite abruptly.

Because of this, using the Power LED to verify battery

status is not reliable with NiMH batteries; although, it

may be possible to track battery status using the

Battery Timer function available in a number of

Lectrosonics receivers. (Refer to the associated

receiver manual to determine if this function is available

in your situation.)

Warning: Care should be taken not to leave a

fully discharged lithium battery in the

transmitter, as swelling of the battery can

make it difficult to remove from the

compartment.

To replace the battery, push up on the Battery Com-

partment Door and rotate it clockwise. (See illustra-

tion.) Remove the old battery and take note of the

polarity marked inside showing the location of the

positive (+) and negative (-) terminals. (You can see

the large and small contact holes inside the battery

compartment with the door open.)

Insert the new battery correctly and close the Battery

Compartment Door by reversing the opening proce-

dure. If the battery is inserted incorrectly, the door will

not fully close. Do not force the door closed.

Rio Rancho, NM 7

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Lectrosonics LM User Manual Page 7