Battery information – Nortel Networks 4146Ex User Manual
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Check for small metal objects in the 
handset earpiece/mouthpiece before 
using the handset.
Do not store or locate flammable liq-
uids, gases, or explosive materials in 
the same compartment or vicinity as 
the cordless handset, its parts or 
accessories.
Battery information
Read the following information before 
you handle the batteries:
• Do not replace the batteries in
potentially explosive environments, 
such as rooms where flammable 
liquids or gases are present.
• The battery will explode if disposed
of in a fire.
• Do not charge the batteries unless
you use the Nortel Networks 
approved charger and the proper 
batteries.
• Only use battery type NTTQ47LA in
the 4145Ex/4146Ex handset. Do 
not use these batteries with other 
products. These batteries were 
designed specifically for use with 
the 4145Ex/4146Ex handset and 
the 4145Ex/4146Ex charger 
(NTTQ47MA) ONLY. Improper use 
of the batteries may result in fire 
hazard.
• Do not do anything that would
cause the battery to short circuit.
• Do not let the battery or the charger
come into contact with conductive 
metal objects.