Panasonic KX-TGM420 Operating Instructions Manual page 19

disconnected at the network interface.
• Use caution when installing or modifying telephone
lines.
• The AC adaptor is used as the main disconnect
device. Ensure that the AC outlet is installed near
the product and is easily accessible.
• This product is unable to make calls when:
– the handset batteries need recharging or have
failed.
– there is a power failure.
Ni-MH rechargeable batteries (supplied)
• We recommend using the batteries noted on page 5.
USE ONLY rechargeable Ni-MH batteries AAA
(R03) size.
• Do not mix old and new batteries.
• Do not open or mutilate the batteries. Released
electrolyte from the batteries is corrosive and may
cause burns or injury to the eyes or skin. The
electrolyte is toxic and may be harmful if swallowed.
• Exercise care when handling the batteries. Do not
allow conductive materials such as rings, bracelets,
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