Installing The Battery In The Handset; Battery Charge - Panasonic KX-TG2236S Operating Instructions Manual

Settings

Installing the Battery in the Handset

Insert the battery into the handset as shown, matching the correct polarity
(#). Press the battery down until it places into the compartment ($).
When finished, close the cover.
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Battery Charge

Place the handset on the base unit and charge for about 15 hours before
initial use.
The IN USE/CHARGE indicator lights and a beep sounds.
OR
IN USE/CHARGE Indicator
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