Aastra DT412 User Manual page 14

Important
14
• The phone can be charged either when switched on or off.
• Do not connect the battery's positive and negative leads
altogether in any case.
• Do not strike or drop the battery. It may cause damage to the
battery.
• Do not charge the battery under the temperature of +5°C
(+41°F). Be sure to charge the battery between the
temperatures of +5°C and +45°C (+41°F and 113°F). Charging
beyond these conditions may impair the battery performance
and shorten the life cycle.
• Do not use battery packs from different types, brands or of
different capacities.
• The battery is to be stored in a dry cool place, with the ambient
temperature around of +25°C (+77°F) for best performance.
• The battery continues to discharge a minimal portion of its
power, even if the product is switched off or the battery is
removed.
• Dispose the battery in accordance with all local regulations,
applicable in your country.
• Do not allow the metal contacts on the battery to touch another
metal object. This could short-circuit and damage the battery.
• Do not attempt to take a battery apart.
• Do not disconnect the battery unless it needs to be replaced.
• Do power the telephone off before removing the battery.
Warnings
• Smoke or fumes
Stop operating the products and turn off immediately in case of
smoke or fumes. Unplug the mains adapter and remove the
batteries from the phone immediately. Continued operation may
result in fire or electrical shock.
• LCD
If the liquid crystal display breaks, avoid injury by not allowing
the liquid crystal to come into contact with eyes, skin or mouth.
Prevent the liquid crystal from leaking out of the broken glass.
MD Evolution – Cordless DT412 / DT422 / DT432