SmartCharge
TM
uses a pulse charging, which greatly
extends the life of Nickel Metal Hydride (NiMH)
batteries. The entire charging process takes about
13 hours. Listen recommends that you allow the
charger to complete its full cycle every time for
maximum battery life.
IMPORTANT: DO NOT ATTEMPT TO CHARGE ANY
TYPE OF BATTERY OTHER THAN NiMH (NICKEL
METAL HYDRIDE) with your Listen equipment.
Alkaline batteries may explode when connected to a
charger. Other risks of charging non-NiMH batteries
include destruction of property or fire.
IMPORTANT: In order to charge NiMH batteries, the
BATTERY SELECT switch in your Listen product must
be set to the NiMH setting. Use a pen or small
screwdriver to move the switch (located in the
battery compartment) to the proper position.
During the charge cycle, the red LED on top of the
Listen product will flash slowly. When charging is
completed, the LED will turn off. It is not necessary
to unplug the charger; however, if you unplug the unit
from the charger and then plug it back in, it will begin
the discharge / charge cycle over again.
When not using the LT-700, it is recommended to
leave the unit on the charger. The charger provides
a “maintenance” charge that keeps the battery at
100%. If the unit is not on the charger, the battery
will lose up to 20% of its charge per month.
Note: NiMH batteries may be purchased from your
Listen dealer (ask for part number LA-362).
LT-700 Portable Transmitter -- Charging Batteries
Operating the LT-700 With a Wall
Transformer
Charging Batteries Cont.
The LT-700 will operate normally when connected to
a wall transformer. Use Listen part number LA-202,
available from any Listen dealer. Connect the wall
transformer to the jack on the side of the LT-700
marked “PWR/CHG” and plug the wall transformer
into a grounded AC outlet.
You do not need to have batteries installed in the LT-
700 to operate it with a wall transformer.
3
LT-700 - Charging Batteries; Wall Transformer Use
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