Listen Technologies LR-400, LR-500 manual LR-300 Charging Batteries

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LR-300 Charging Batteries

The LR-300 and all Listen receivers are unique because they have SmartCharge™ chargers built in. When any of these units are connected to an LA-202 wall transformer or dropped into a Listen charging case, NiMH batteries will be charged.

1To charge the batteries using the LA-202 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.

2To 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.

SmartCharge™ uses a pulse charging, which greatly extends the life of Nickel Metal Hydride (NiMH) batteries. The entire charging process takes 13 hours. Listen recommends that you allow the charger to complete its full cycle every time for maximum battery life.

NOTE: 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.

Connect LA-202 here and plug into an

AC wall outlet

LR-300

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.

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 13-hour charge cycle over again.

When not using the LR-300, 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 high performance constant current NiMH (Nickel Metal Hydride) batteries. These may be purchased from your Listen dealer (ask for part number LA-362).

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Contents
Page Page Page Page Receivers Table of Contents Page Page Page LR-500 Table of Contents LR-500 Package Contents LR-500 Specifications Architectural SpecificationsBattery Compartment LR-500 Quick ReferenceLR-500 Setup Instructions Remove the productSelect Channels LR-500 Operation Instructions Make Sure the Unit is OnTo Lock into Only One Channel LR-500 Programming Instructions Locking Out Unwanted ChannelsLR-500 Squelch Squelch Programming InstructionsLR-500 Charging Batteries LR-500 Wall Transformer Operation Page Page Page Page LR-400 Table of Contents LR-400 Package Contents LR-400 Specifications Specification LR-400-072 LR-400-216LR-400 Quick Reference LR-400 Setup Instructions See page 29 for squelch and programming information LR-400 Operation Instructions To Lock into Only One Channel LR-400 Squelch LR-400 Charging Batteries LR-400 Wall Transformer Operation Page Page Page LR-300 Table of Contents LR-300 Package Contents LR-300 Specifications Specification LR-300-072 LR-300 Quick Reference LR-300 Setup Instructions Red LED will illuminate when on Earphone/Headset jack LR-300 Operation Instructions LR-300 Charging Batteries LR-300 Wall Transformer Operation Channel Selection Listen SQ SQ SummaryRF Reception Maximization Strategies MHz Compatibility Chart Comtek Williams Gentner Telex DrakeCSI AVR Troubleshooting LR-300, LR-400, LR-500 Receivers TroubleshootingTroubleshooting Users keep changing channelsCompliance Notice and FCC Statement Compliance NoticeWarranty & Contacting Listen WarrantyOptional Accessories Earphone OptionsPage
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