B2500_DUO_v3.QXD 03-01-2003 13:22 Page 10
Butler 2500/2500 DUO
Charge the handset for a period of 24 hours before using the handset for the first time. To extend the battery life time, decharge the batteries completely from time to time. As soon as the handset emits a warning tone or when the battery icon 
is empty, you have to put it back on the base unit.
4. BATTERY EMPTY INDICATION
When the battery is empty, the handset no longer carries out operations. When a battery is completely empty and you have put the handset on the base unit for a short period of time, the Battery symbol will appear to be fully charged but this is actually not the case. The battery capacity will decrease rapidly. We advise you to put the handset on the base unit for the entire night so that it can be recharged thoroughly.
•Full battery [ 
]
•Empty battery [ 
]
When you are in the middle of a conversation and the battery is almost empty, the handset will emit a warning signal. Place the handset on the base unit to charge.
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