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8
BATTERY INSTALLATION AND INFO (continued)
Charging the Rechargeable Batteries
Follow these steps to recharge the NiMH rechargeable batteries.
1. Connect the AC/DC main power adapter to the DC IN
power supply socket, located on the back of the recharging cradle/
transmitter.
2. Then, plug the adapter into an electrical outlet.
3. Place the headphones into recharging cradle/transmitter, with
the charge indicator facing to the front. Make sure the headphones
are placed in a completely vertical position, not leading to either
side. If the headphones are placed correctly, the charge indicator
light illuminates.
4. Subsequent charging must be performed in about 15-17 hours.
NiMH Rechargeable Battery Memory Effect
When an NiMH rechargeable battery is first used, it is important to fully
charge it and then allow it to discharge three times in order to maximize
the battery’s storage capacity. When a battery is recharged before
it is completely discharged, it develops a memory that will limit the
amount of charge in the future. This reduces the battery’s storage
capacity for subsequent charges and so reduces the amount of time
your headphones can be used before recharging is necessary.
NiMH Natural Power Discharge
Due to their chemical design, all rechargeable batteries incur some
degree of natural discharge. This means they automatically lose their
charge to in varying degrees, and the battery’s capacity drops even
when not in use. The size of this power loss varies, depending on the
battery’s type, size, design, internal resistance and, most especially, the
temperature. The higher the temperature, the greater the power loss
through natural discharge.
NiMH Battery Warning
If you are using NiMH or NiCd batteries, the batteries will charge when
the headphones are powered with the AC power adapter. Do not power
the headphones with the AC power adapter if you installed alkaline or
other non-rechargeable batteries—this could cause the batteries to leak.
Do not mix batteries with different chemistry types (for example, a zinc
battery with an alkaline battery). Do not mix new and used batteries.
Do not leave batteries installed in the product when not in use for long
periods. Respect the environment and the law. Before disposing of
rechargeable batteries, ask your distributor if they can be recycled and
whether or not the distributor collects rechargeable batteries for recycling.