Listen Technologies 863.050, User Manual

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Supplementary
Battery Charging Information
Charging with the LA-208
To charge the batteries using the LA-208 wall transformer, plug the transformer into the
jack marked “PWR/CHG” on the side of the unit. The unit can be operated while the
batteries are charging.
Charging with a drop-in charger
To charge the batteries using a drop-in charger, simply place the unit into a slot in the charger and connect
the charger to power. Make sure the unit is fully seated in its slot.
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 fi re.
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.
WARNING: The case lid MUST be open or removed while the units are charging. The charging process generates
heat. Air ventilation is required. It is best to store your charging case at room temperature away from
heat sources and direct sunlight
The Listen receivers are unique because they have SmartCharge™ chargers built in. When any of these units are connected to an LA-208
wall transformer or dropped into a Listen charging case, NiMH batteries will be charged.
SmartCharge™ 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.
During the charge cycle, the red LED on top of the Listen product will fl ash 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 13-hour charge
cycle over again. (show top of a receiver [LED])
When not using the receiver, 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: Listen provides 2300 mAH (milli-Amp-hour) constant current NiMH Nickel Metal Hydride) batteries. These
may be purchased from Listen (part number LA-362).