User's Manual

LM/IM
LECTROSONICS, INC.
6
Battery Installation
The transmitter is powered by a standard 9 volt bat-
tery. 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 bat-
tery status circuitry is designed for the voltage drop over
the life of alkaline batteries. NiMH rechargeable batter-
ies 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 po-
larity 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.
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